TextBox in the .Net applications are like the input box both have the input fields to insert data. The TextBox can either input the single line text or the multi-line texts. TextBox control allows entering text at the runtime of the programs.
Add TextBox control to the Form
From the toolbox drag & drop the text box control to the form.
text box control
Accept Values From TextBox
You may accept the values from TextBox as shown below.
Dim a As String = TextBox1.Text
TextBox Control Properties
The following table shows the popular using TextBox control properties.
|
Properties |
Description |
| TextAlign | Text alignment is set using this property |
| Multiline | This property is used to set more than one line text |
| ScrollBars | This property is used to specify vertical and horizontal scroll bars. |
| MaxLength | Property used to specify the maximum number of characters accepted by a TextBox Control. |
| Enabled | Property used to enable a textbox control. |
| Index | Property used to specify the index of a control array. |
| Readonly | Property is set to true to use the control, false the control cannot be used. |
| SelectionLength | Property is used set or get the number of characters selected in the text box. |
| SelectionStart | Property is used set or get the starting point of a text box. |
| SelectedText | Property is used for indicating the currently selected text box. |
TextBox Control Methods
The following table shows the most used TextBox Control methods.
|
Method |
Descrtiption |
| AppendText | Appends text to the current text of a text box. |
| Clear | Clears all text from the text box control. |
| Copy | Copies the current selection in the text box to the Clipboard. |
| Cut | Moves the current selection in the text box to the Clipboard. |
| Paste | Replaces the current selection in the text box with the contents of the Clipboard. |
| Paste(String) | Sets the selected text to the specified text without clearing the undo buffer. |
| ResetText | Resets the Text property to its default value. |
| ToString | Returns a string that represents the TextBoxBase control. |
| Undo | Undoes the last edit operation in the text box. |
TextBox Control Events
The following table shows the common events of TextBox control.
|
Event |
Desription |
| Click | Occurs when the control is clicked. |
| DoubleClick | Occurs when the control is double-clicked. |
| TextAlignChanged | Occurs when the TextAlign property value changes. |