Here Mudassar Ahmed Khan has explained with an example, how to check uncheck all (select unselect all) CheckBoxes in ASP.Net CheckBoxList using C# and VB.Net.

The check uncheck all functionality will be done using an additional CheckBox that will act as Check All CheckBox for the ASP.Net CheckBoxList control.

Here Mudassar Ahmed Khan has explained with an example, how to use multiple Regular Expression (Regex) Data Annotation attributes for validation in ASP.Net MVC Razor.

The validation will be performed on Client Side using Model class and multiple Regular Expression (Regex) Data Annotation attributes in ASP.Net MVC Razor.

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.