protected void ASPxGridView1_CustomCallback(object sender, DevExpress.Web.ASPxGridViewCustomCallbackEventArgs e)
{
ASPxGridView thisASPxGridView = sender as ASPxGridView;
foreach (GridViewColumn column in thisASPxGridView.Columns)
{
GridViewDataColumn dataColumn = column as GridViewDataColumn;
if (dataColumn == null)
{
continue;
}
ASPxTextBox filterCellTextBox = thisASPxGridView.FindFilterCellTemplateControl(dataColumn, "ASPxTextBox1") as ASPxTextBox;
if (filterCellTextBox == null)
{
continue;
}
if (e.Parameters == "clear")
{
filterCellTextBox.Text = string.Empty;
}
thisASPxGridView.AutoFilterByColumn(dataColumn, filterCellTextBox.Text);
}
}