aspnet-devexpress-dot-web-b2f5774e.md
Provides data for the ASPxGridView.ProcessColumnAutoFilter event.
Namespace : DevExpress.Web
Assembly : DevExpress.Web.v25.2.dll
NuGet Package : DevExpress.Web
public class ASPxGridViewAutoFilterEventArgs :
GridAutoFilterEventArgs
Public Class ASPxGridViewAutoFilterEventArgs
Inherits GridAutoFilterEventArgs
ASPxGridViewAutoFilterEventArgs is the data class for the following events:
In this example, the ASPxGridView.ProcessColumnAutoFilter event is handled to allow end-users to filter employees by the year of birth.
Since the BirthDate column displays DateTime values, the DateTime editor is used to specify the filter criteria. To allow end-users to only enter the year, the default editor is replaced with the text editor within the ASPxGridView.AutoFilterCellEditorCreate event handler.
The image below shows the result:
using DevExpress.Web.ASPxEditors;
using DevExpress.Data.Filtering;
protected void ASPxGridView1_ProcessColumnAutoFilter(object sender,
DevExpress.Web.ASPxGridViewAutoFilterEventArgs e) {
if(e.Column != ASPxGridView1.Columns["BirthDate"]) return;
if (e.Kind == DevExpress.Web.GridViewAutoFilterEventKind.CreateCriteria) {
// Creates a new filter criterion and applies it.
e.Criteria = null;
int year;
if (!int.TryParse(e.Value, out year)) return;
e.Criteria = (new OperandProperty("BirthDate") >= new DateTime(year, 1, 1)) &
(new OperandProperty("BirthDate") < new DateTime(year + 1, 1, 1));
}
else {
DateTime res;
if (!DateTime.TryParse(e.Value, out res)) {
e.Value = string.Empty;
}
else {
// Specifies the text displayed within the auto-filter row cell.
e.Value = res.Year.ToString();
}
}
}
protected void ASPxGridView1_AutoFilterCellEditorCreate(object sender,
DevExpress.Web.ASPxGridViewEditorCreateEventArgs e) {
// Replaces the default editor used to edit DateTime values with the text editor.
if (e.Column == ASPxGridView1.Columns["BirthDate"]) e.EditorProperties = new TextBoxProperties();
}
Object EventArgs GridAutoFilterEventArgs ASPxGridViewAutoFilterEventArgs BootstrapGridViewAutoFilterEventArgs
See Also