ASPxGridHeaderFilterEventArgs.AddShowBlanks(String) Method

Creates and adds the “Blanks” filter value to the header filter values.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v23.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

public void AddShowBlanks(
    string displayText
)

VB.NET

Public Sub AddShowBlanks(
    displayText As String
)

Parameters

Name	Type	Description
displayText	String	A string value specifying the text of the “Blanks” filter value.

Remarks

Use the AddShowBlanks method to create and add the “Blanks” filter value to the header filter values when handling the ASPxGridView.HeaderFilterFillItems event.

C#

protected void ASPxGridView1_HeaderFilterFillItems(object sender, DevExpress.Web.ASPxGridViewHeaderFilterEventArgs e)
{
    e.Values.Clear();
    e.AddShowBlanks("Blank Items");
    e.AddShowNonBlanks("Non Blank Items");
}