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ListEditItemsRequestedByFilterConditionEventArgs.EndIndex Property

Gets an integer value that identifies the end index of the editor’s items.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v21.1.dll

Declaration

public int EndIndex { get; }

Property Value

Type Description
Int32

An integer value that represent the end index.

Remarks

The EndIndex property is affected by the ASPxAutoCompleteBoxBase.CallbackPageSize property value.

Example

The following section of the Filtering Large Data Source online demo illustrates how the ASPxComboBox.ItemsRequestedByFilterCondition and ASPxComboBox.ItemRequestedByValue events of the ASPxComboBox editor can be handled to filter the editor’s data source containing a large number of records.

NOTE

To work properly, both the ItemsRequestedByFilterCondition and ItemRequestedByValue events should be handled.

protected void ASPxComboBox_OnItemsRequestedByFilterCondition_SQL(object source, 
ListEditItemsRequestedByFilterConditionEventArgs e) {
         ASPxComboBox comboBox = (ASPxComboBox)source;
         SqlDataSource1.SelectCommand = @"SELECT OID, [From], Sent, Subject 
             FROM (select OID, [From], Sent, Subject, row_number() over(order by t.Sent) as [rn] 
             from dbo.ServerSideGridTest as t WHERE ((t.Subject LIKE @filter) OR (t.[From] 
              LIKE @filter))) as st where st.[rn] between @startIndex and @endIndex";
         SqlDataSource1.SelectParameters.Clear();
         SqlDataSource1.SelectParameters.Add("filter", TypeCode.String, string.Format("%{0}%", e.Filter));
         SqlDataSource1.SelectParameters.Add("startIndex", TypeCode.Int64, (e.BeginIndex + 1).ToString());
         SqlDataSource1.SelectParameters.Add("endIndex", TypeCode.Int64, (e.EndIndex + 1).ToString());
         comboBox.DataSource = SqlDataSource1;
         comboBox.DataBind();
}

protected void ASPxComboBox_OnItemRequestedByValue_SQL(object source, 
ListEditItemRequestedByValueEventArgs e) {
    ASPxComboBox comboBox = (ASPxComboBox)source;
    SqlDataSource1.SelectCommand = @"SELECT OID, Subject, [From], Sent 
        FROM dbo.ServerSideGridTest WHERE (OID = @OID) ORDER BY Sent";
    SqlDataSource1.SelectParameters.Add("OID", TypeCode.Int64, e.Value.ToString());
    ...
    comboBox.DataSource = SqlDataSource1;
    comboBox.DataBind();
}
See Also