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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.v18.2.dll
Declaration
public void AddValue(
string displayText,
string value,
string query
)Public Sub AddValue(
displayText As String,
value As String,
query As String
)Parameters
| 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. |
Remarks
Note that the ASPxGridView header filter allows the use of HTML tags in the displayText parameter.
Examples
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
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