Here Mudassar Ahmed Khan has explained with an example, how to enable or disable TextBox in GridView based on condition in ASP.Net using C# and VB.Net.

Inside the OnRowDataBound event handler, the TextBox will be referenced and disabled based on some condition in ASP.Net using C# and VB.Net.

Here Mudassar Ahmed Khan has explained with an example, how to hide GridView column at runtime in ASP.Net using C# and VB.Net.

The GridView column will be hidden at runtime when CheckBox is unchecked in ASP.Net using C# and VB.Net.

Here Mudassar Ahmed Khan has explained with an example, how to hide GridView column programmatically in ASP.Net using C# and VB.Net.

The GridView column will be programmatically hidden when CheckBox is unchecked in ASP.Net using C# and VB.Net.

Here Mudassar Ahmed Khan has explained with an example, how to activate TextBox if another option is selected in DropDownBox using JavaScript and jQuery.

When the Other (option) in DropDownList is selected, the TextBox will be enabled else disabled.