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TextBox::Columns Property

Gets or sets the display width of the text box in characters.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public:
virtual property int Columns {
	int get ();
	void set (int value);
}
<asp:TextBox Columns="Int32" />

Property Value

Type: System::Int32
The display width, in characters, of the text box. The default is 0, which indicates that the property is not set.

ExceptionCondition
ArgumentOutOfRangeException

The specified width is less than 0.

The following code example demonstrates how to use the Columns property to specify a width of 2 characters for the TextBox control.

Security noteSecurity Note

This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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