ASPxGridHeaderFilterEventArgs.AddValue(String, String, String) Method

Adds a new filter item with the specified filter criteria to the header filter.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v21.1.dll


public void AddValue(
    string displayText,
    string value,
    string query


Name Type Description
displayText String

A String value that specifies the filter item’s display text.

value String

A String value that specifies the filter item’s value.

query String

A String value that represents the filter criteria.


Note that the ASPxGridView header filter allows the use of HTML tags in the displayText parameter.


This example shows how to create custom filter items and display them within the Units On Order column’s filter dropdown.

The image below shows the result:


protected void ASPxGridView1_HeaderFilterFillItems(object sender, DevExpress.Web.ASPxGridViewHeaderFilterEventArgs e) {
     if (e.Column.FieldName != "UnitsOnOrder") return;
     e.AddValue("nonzero", string.Empty, "[UnitsOnOrder] != 0");
     e.AddValue(String.Format("from {0} to {1}", 0, 50), string.Empty, String.Format("[UnitsOnOrder] > {0} and [UnitsOnOrder] < {1}", 0, 50));
     e.AddValue(String.Format(">= {0}", 50), string.Empty, String.Format("[UnitsOnOrder] >= {0}", 50));
See Also