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‎README.md

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# CSharf Custom Classes
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Custom classes for Windows Form Application in C# Developed by Wilfred V. Pine
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Custom [Classes](https://github.com/redmalmon/csharp-custom-classes/tree/main/Classes) for Windows Form Application using C# Developed by Wilfred V. Pine
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@2020
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[MIT License](https://github.com/redmalmon/CSharf-Custom-Classes/blob/main/LICENSE)
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## [Classes](https://github.com/redmalmon/csharp-custom-classes/tree/main/Classes)
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### 1. [Database](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Database.cs) class - this is use for MySqlClient configurations, sql statements, & etc. This will also included the loading of data to a form control including dataGridView and comboBox.
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* Instantiation - creating an object `db` from a class type `Database` and instantiate using the `new` keyword.
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see: [c-sharfcorner](https://www.c-sharpcorner.com/article/C-Sharp-object-instantiation-part-i-constructors/)
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### How to use?
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1. Copy the [Classes](https://github.com/redmalmon/csharp-custom-classes/tree/main/Classes) folder into your project folder.
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2. From your project folder root directory, create a class named " [Config](https://github.com/redmalmon/csharp-custom-classes/blob/main/Config.cs) " and create a public instance of all the classes from [Classes](https://github.com/redmalmon/csharp-custom-classes/tree/main/Classes) folder. See the code below:
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```c#
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using Classes; // include the "Classes" folder
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namespace MySampleProject
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{
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class Config
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{
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/*
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* Database Information
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*/
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private static string host = "localhost";
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private static string dbname = "dbinformation";
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private static string dbuser = "root";
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private static string dbpassword = "";
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/*
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* Classes
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*/
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public Database db;
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public Validation validate;
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public Form_UI ui;
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public Visualizer visualizer;
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public Str_Date_Time date_time;
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public Upload upload;
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/*
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* Constructor
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*/
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public Config()
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{
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this.db = new Database(host, dbuser, dbpassword, dbname);
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this.validate = new Validation();
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this.ui = new Form_UI();
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this.visualizer = new Visualizer();
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this.date_time = new Str_Date_Time();
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this.upload = new Upload();
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}
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}
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}
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```
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3. Create an instance of your [Config](https://github.com/redmalmon/csharp-custom-classes/blob/main/Config.cs) class.
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```c#
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// instantiate an object `db` from `Database` class
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Database db = new Database();
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public partial class FormLogin : Form
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{
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Config config = new Config(); // your Config class
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public FormLogin()
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{
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InitializeComponent();
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}
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```
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4. You can now use [Database](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Database.cs) , [Validation](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Validation.cs) , [Visualizer](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Visualizer.cs) , [Upload](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Upload.cs) , [Date_Time](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Str_Date_Time.cs) , & [Form_UI](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Form_UI.cs) Class.
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```c#
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config.db.....
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config.validate......
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config.ui......
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config.visualizer.....
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config.date_time.....
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config.upload.......
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```
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### Using [Database](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Database.cs) class - this is use for MySqlClient configurations, sql statements, & etc. This will also included the loading of data to a form control including dataGridView and comboBox.
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#### Using Database' Methods
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* `select(string qry)` or select() method is use for `select` statements and this method return `MySqlDataReader` that reads a forward-only stream of rows from a MySQL database.
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```c#
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var reader = db.select("select * from users");
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var reader = config.db.select("select * from users");
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while (reader.Read())
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{
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//reader["userid"].ToString();
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}
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```
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* `save(string table, string[] column, string[] bind)` or save() method is use for `insert into` statements and does not return a value. This methods display a MessageBox for showing the result of your sql statement.
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* `save(string table, string[] column, string[] bind, string msg = "Successfully saved.")` or save() method is use for `insert into` statements and does not return a value. This methods display a MessageBox for showing the result of your sql statement.
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The `table` parameter is use to pass your table_name from your database, while `column` parameter is use to pass your collection of column_name from your database table, and the `bind` parameter is for the collection of values of the columns.
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The `table` parameter is use to pass your table_name from your database, while `column` parameter is use to pass your collection of column_name from your database table, and the `bind` parameter is for the collection of values of the columns. Since the `msg` parameter has a default value, it is optional.
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```c#
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string[] value = { txtUsername.Text, txtPassword.Text, cmbSex.Text };
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string[] column = { "username", "password", "sex" };
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db.save("users", column, value);
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string[] value = { txtUsername.Text, txtPassword.Text, cmbSex.Text };
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config.db.save("users", column, value); // config.db.save("users", column, value, "User successfully saved!");
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```
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* `cud(string qry, string msg = "")` or cud() method is use for your `insert into` , `update` , and `delete` statements. This method also does not return a value. This methods display a MessageBox for showing the result of your sql statement, or passing your custom notification message (optional) using `msg` parameter.
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* `cud(string qry, string msg = "Transaction Completed!")` or cud() method is use for your `insert into` , `update` , and `delete` statements. This method also does not return a value. This methods display a MessageBox for showing the result of your sql statement, or passing your custom notification message (optional) using `msg` parameter.
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```c#
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db.cud("Sql Query Here","Custom Notification Message");
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config.db.cud("Sql Query Here","Custom Notification Message");
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//or
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db.cud("Sql Query Here");
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config.db.cud("Sql Query Here");
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```
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Example:
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```c#
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db.cud("INSERT INTO users (username,password,sex) VALUES ('" + txtUsername.Text + "','" + txtPassword.Text + "','" + cmbSex.Text + "')","Successfully Saved");
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config.db.cud("INSERT INTO users (username,password,sex) VALUES ('" + txtUsername.Text + "','" + txtPassword.Text + "','" + cmbSex.Text + "')","User successfully saved!");
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```
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* `table(string qry, DataGridView dgv, string[] header = null)` or table() method is use for displaying data to DataGridView Control using the DataSource properties.
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The `qry` parameter use for your sql satements `select`. The `dgv` parameter is use to pass the name of your DataGridView Control, while the `header` parameter (optional) is use to display the custom header name for your DataGridView display.
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* `table(string qry, DataGridView dgv, string[] header = null)` or table() method is use for displaying data to a DataGridView Control using the DataSource properties.
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The `qry` parameter use for your sql satement `select`. The `dgv` parameter is use to pass the name of your DataGridView Control, while the `header` parameter (optional) is use to display the collection of custom header name for your DataGridView display.
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```c#
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//using custom header
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string[] customheader = { "User ID", "Username", "Gender" };
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//the table methods
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db.table("select userid,username,sex from users", dgvUsers, customheader);
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config.db.table("select userid,username,sex from users", dgvUsers, customheader); // dgvUsers is the name of your datagridview
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```
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```c#
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//the table methods without custom header
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db.table("select userid,username,sex from users", dgvUsers);
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config.db.table("select userid,username,sex from users", dgvUsers);
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```
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* `list(string qry, ComboBox comboBox)` or list() method is use to display data to your comboBox control as an items.
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### 2. [Date_time](https://github.com/redmalmon/CSharf-Custom-Classes/blob/main/C-Sharf%20Classes/Classes/Date_time.cs) class - for date & time conversion
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```c#
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config.db.list("select course_name from courses", cmbCourse); // cmbCourse is the name of your comboBox control
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```
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*
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* `exist(string qry)` or exist() method is use to validate if a data is existing in your database. It will return `true` if exist.
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```c#
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if(config.db.exist("select username from courses where username = '"+ txtusername.Text +"'"))
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{
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MessageBox.Show("Username already exist!");
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}else{
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// save
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}
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```
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### 3. [Public_variables](https://github.com/redmalmon/CSharf-Custom-Classes/blob/main/C-Sharf%20Classes/Classes/Public_variables.cs) class - stored global variables
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* `maxid(String column, String tbl)` or maxid() method is use to get the last inserted `id` in your database. The column parameter is the name of the column you want to select, and the tbl parameter is your table name.
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*
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```c#
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int id = config.db.maxid('userid', 'users'); // it will return an int value
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```
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### Using [Form_UI](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Form_UI.cs) class
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### 4. [UI_events](https://github.com/redmalmon/CSharf-Custom-Classes/blob/main/C-Sharf%20Classes/Classes/UI_events.cs) class - form controls & events
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This class includes the traditional way of displaying form. Also includes the advanced UI manipulation using MDI or Multiple Document Interface.
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* Instantiate
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#### The Basic :
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* `Show(Form frmNew, Form frmOld)` or Show() method is simply use for displaying new Form and hiding active Form.
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- Behind the methods: `frmain.Show();` `this.Hide();`
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```c#
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frmMain frmain = new frmMain();
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config.ui.Show(frmain, this); // or config.ui.Show(new frmMain());
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```
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* `Dialog(Form frm)` or Dialog() methods use for displaying Form as Dialog.
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```c#
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UI_events ui = new UI_events();
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frmMain frmain = new frmMain();
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config.ui.Dialog(frmain); // or config.ui.Show(new frmMain());
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```
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#### The MDI :
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* `FormShow(Form frm, string dstyle = "Fill")` or FormShow() methods is use for displaying form child to your MdiParent Form.
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```
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Passing object `dash` to the first parameter, and "Top" (`DockStyle` property value) to second parameter (Optional). Top property value is use for Dock properties of a form child. The default Dock property value is `DockStyle.Fill` or `Fill`.
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```c#
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ui.FormShow(dash, "Top");
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config.ui.FormShow(dash, "Top");
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```
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```c#
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// Fill
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frmDashboard dash = new frmDashboard();
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ui.FormShow(dash);
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config.ui.FormShow(dash); // or config.ui.FormShow(new frmDashboard());
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```
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* `Show(Form frmNew, Form frmOld)` or Show() method is simply use for displaying new Form and hiding active Form.
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```c#
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frmMain frmain = new frmMain();
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ui.Show(frmain, this);
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//behind the methods
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//frmain.Show();
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//this.Hide();
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```
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* `Dialog(Form frm)` or Dialog() methods use for displaying Form as Dialog.
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```c#
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frmMain frmain = new frmMain();
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ui.Dialog(frmain);
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```
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#### Chart
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### Using [Visualizer](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Visualizer.cs) - use for visualization of data.
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* `chart(Chart chart, string SeriesName, string[] x, int[] y, string chartType = "Column")` or chart() method
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// Array Value
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int[] Y = { 12, 14, 9 };
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// Pass to Chart Methods = Male Series
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ui.chart(chartUser, "Male", X, Y, "Pie");
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config.visualizer.chart(chartUser, "Male", X, Y, "Pie");
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//_________________________________________________________________________________
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/*
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* NEW SERIES 'FEMALE'
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*/
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string[] x2 = { "BSIT", "BSED", "AB" };
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int[] y2 = { 6, 0, 16 };
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// Female Series
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ui.chart(chartUser, "Female", x2, y2, "Pie");
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config.visualizer.chart(chartUser, "Female", x2, y2, "Pie");
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}
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```
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// Y = 12, 14, 2
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```
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* Chart data from database
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* Chart data from database (Dynamic)
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```c#
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/*
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* SERIES SEX
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* SERIES 'MALE'
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*/
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//initialized empty array
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string[] X = {};
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int[] Y = {};
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var reader = db.select("select count(*) as c, sex from users group by sex");
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var reader = db.select("select count(*) as c, course from users where sex = 'MALE'");
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while (reader.Read())
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{
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X = X.Concat(new string[] { reader["sex"].ToString() }).ToArray();
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Y = Y.Concat(new int[] { Int32.Parse(reader["c"].ToString()) }).ToArray();
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X = X.Concat(new string[] { reader["course"].ToString() }).ToArray(); // string[] X = { "BSIT", "BSED", "AB" };
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Y = Y.Concat(new int[] { Int32.Parse(reader["c"].ToString()) }).ToArray(); // int[] Y = { 12, 14, 9 };
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}
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// Chart Methods
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// ChartSeries = "Sex"; ChartType = "Pie";
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ui.chart(chartUser, "Sex", X, Y, "Pie");
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```
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// ChartSeries = "MALE"; ChartType = "Bar"; // Chart type is optional, the default is column
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config.visualizer.chart(chartUser, "MALE", X, Y, "Bar");
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/*
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* SERIES 'FEMALE'
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*/
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//initialized empty array
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string[] x2 = {};
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int[] y2 = {};
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### 5. [Upload](https://github.com/redmalmon/CSharf-Custom-Classes/blob/main/C-Sharf%20Classes/Classes/Upload.cs) class - files & directories
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*
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var reader = db.select("select count(*) as c, course from users where sex = 'FEMALE'");
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while (reader.Read())
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{
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x2 = x2.Concat(new string[] { reader["course"].ToString() }).ToArray(); // string[] x2 = { "BSIT", "BSED", "AB" };
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y2 = y2.Concat(new int[] { Int32.Parse(reader["c"].ToString()) }).ToArray(); // int[] y2 = { 6, 0, 16 };
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}
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// Chart Methods
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// ChartSeries = "FEMALE"; ChartType = "Bar"; // Chart type is optional, the default is column
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config.visualizer.chart(chartUser, "FEMALE", x2, y2, "Bar");
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```
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### 6. [Validations](https://github.com/redmalmon/CSharf-Custom-Classes/blob/main/C-Sharf%20Classes/Classes/Validations.cs) class - keyboard events, mouse events, etc.
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* Instantiate
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### Using [Validations](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Validation.cs) class - use for validationg inputs (keyboard events, mouse events, etc.)
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```c#
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Validations validate = new Validations();
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```
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* The `txtRequired(TextBox[] txt, string msg = "")` or txtTequired() method use to validate required input controls.
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* The `txtRequired(TextBox[] txt, bool allow_message = false, string msg = "Please fillup required fields!")` or txtRequired() method use to validate required textbox controls. There is also validation for comboBox controls, the `cmbRequired(ComboBox[] cmb, bool allow_message = false, string msg = "Please select required fields!")` method. These functions return `false` if ther is an empty value in the fields.
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```c#
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TextBox[] txt = { txtUsername, txtPassword, txtCPassword };
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ComboBox[] cmb = { cmbSex };
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if (!validate.txtRequired(txt) || !validate.cmbRequired(cmb))
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if (!config.validate.txtRequired(txt) || !config.validate.cmbRequired(cmb))
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return;
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```
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* Accepts Numbers & Letters Only
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* The `alpha(KeyPressEventArgs e)` or alpha() Method is use to disable a series of keyboard characters except letters. To use this method, set a KeyPress events to your texbox and call the `alphanum(e)` methods to it's event handler.
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```c#
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private void txtUsername_KeyPress(object sender, KeyPressEventArgs e)
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{
217-
validate.alphanum(e);
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config.validate.alphanum(e);
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}
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```
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## [Config](https://github.com/redmalmon/CSharf-Custom-Classes/blob/main/C-Sharf%20Classes/Config.cs) Class
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### 2. [Date_time](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Str_Date_Time.cs) class - for date & time format conversion
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* Database Information use as connection string.
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```c#
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/*
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* Database Information
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*/
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public static string dbname = "dbinformation";
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public static string dbuser = "root";
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public static string dbpassword = "";
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```
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*
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* Upload Directories & Validations.
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### Using [Upload](https://github.com/redmalmon/csharp-custom-classes/blob/main/Classes/Upload.cs) class - working with files & directories
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```c#
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public static string upload_path = @"c:\C-Sharf Classes\";
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public static string allowedImage = "Image Files|*.jpg;*.jpeg;*.png";
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public static string allowedFile = "Excel Files(.xls ,.xlsx)| *.xls ;*.xlsx|PDF Files(.pdf)|*.pdf|Text Files(*.txt)|*.txt|Word Files(.docx ,.doc)|*.docx;*.doc";
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```
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*

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