ASPxGridHeaderFilterEventArgs.CreateShowBlanksValue(String) Method
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Creates and returns the (Blanks) filter item used to filter a column by blank values.
Namespace: DevExpress.Web
Assembly: DevExpress.Web.v24.2.dll
NuGet Package: DevExpress.Web
#Declaration
public FilterValue CreateShowBlanksValue(
string displayText
)
#Parameters
Name | Type | Description |
---|---|---|
display |
String | A String value that specifies the item’s display text. |
#Returns
Type | Description |
---|---|
Filter |
Returns the filter item used to filter by blank values. |
#Remarks
When creating custom filter values by handling the ASPxGridView.HeaderFilterFillItems event, you can use the CreateShowBlanksValue method to create the (Blanks) filter item. The created item can be added to a header filter using the event argument’s ASPxGridHeaderFilterEventArgs.AddValue method.
protected void ASPxGridView1_HeaderFilterFillItems(object sender, DevExpress.Web.ASPxGridViewHeaderFilterEventArgs e)
{
e.Values.Clear();
FilterValue showBlanksItem = e.CreateShowBlanksValue("Blank Items");
e.Values.Add(showBlanksItem);
}
See Also