ASPxAutoCompleteBoxBase.IncrementalFilteringMode Property

Specifies the incremental filter mode.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v22.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(IncrementalFilteringMode.Contains)]
public virtual IncrementalFilteringMode IncrementalFilteringMode { get; set; }

VB.NET

<DefaultValue(IncrementalFilteringMode.Contains)>
Public Overridable Property IncrementalFilteringMode As IncrementalFilteringMode

Property Value

Type	Default	Description
IncrementalFilteringMode	Contains	A value of the enumeration.

Available values:

Name	Description
Contains	The editor filters items that contain the filter string.
StartsWith	The editor filters items that begin with the filter string.
None	The editor does not filter items.

Remarks

The editor can filter items on the client while a user types the filter string. Use the IncrementalFilteringMode property to specify the editor’s filter mode.

• IncrementalFilteringMode=”Contains”

  

• IncrementalFilteringMode=”StartsWith”

  

The editor can use callbacks in incremental filter mode.

In markup:

ASPX

<dx:ASPxComboBox ID="Countries" runat="server" EnableCallbackMode="True" IncrementalFilteringMode="StartsWith">
    <Items>
        <!--...-->
    </Items>
</dx:ASPxComboBox>

In code:

C#

protected void Page_Load(object sender, EventArgs e){
    ASPxComboBox cb = new ASPxComboBox();
    cb.Items.AddRange(new List<ListEditItem>(){
        //...
    })
    cb.EnableCallbackMode = true;
    cb.IncrementalFilteringMode = IncrementalFilteringMode.StartsWith;
}

In incremental filtering mode, the ASPxComboBox can filter its items according to the format specified in the ASPxAutoCompleteBoxBase.TextFormatString property.

ASPX

<dx:ASPxComboBox ID="ASPxComboBox1" runat="server" DataSourceID="EmployeesDataSource"  ValueField="EmployeeID"
    DropDownStyle="DropDown" TextFormatString="{0} from {2}" IncrementalFilteringMode="Contains">
    <Columns>
        <dx:ListBoxColumn FieldName="FirstName" />
        <dx:ListBoxColumn FieldName="LastName" />
        <dx:ListBoxColumn FieldName="City" />
    </Columns>
</dx:ASPxComboBox>
<ef:EntityDataSource runat="server" ID="EmployeesDataSource" .../>

Run Demo: ASPxComboBox - Incremental Filtering