GridViewDataColumnSettings.AllowDragDrop Property

Gets or sets whether end-users can drag the column’s header.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v21.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(DefaultBoolean.Default)]
public DefaultBoolean AllowDragDrop { get; set; }

VB.NET

<DefaultValue(DefaultBoolean.Default)>
Public Property AllowDragDrop As DefaultBoolean

Property Value

Type	Default	Description
DefaultBoolean	Default	One of the DefaultBoolean enumeration values.

Available values:

Name	Description
True	true. DefaultBoolean.True has a constant value of 0, while the standard true value corresponds to a value of 1. In Visual Basic, do not use implicit conversion of Boolean values to DefaultBoolean, and vice versa, as the conversion may produce incorrect results.
False	false. DefaultBoolean.False has a constant value of 1, while the standard false value corresponds to a value of 0. In Visual Basic, do not use implicit conversion of Boolean values to DefaultBoolean, and vice versa, as the conversion may produce incorrect results.
Default	The default behavior determined by the control’s logic.

Property Paths

You can access this nested property as listed below:

Object Type	Path to AllowDragDrop
GridViewDataColumn	.Settings .AllowDragDrop

Remarks

If the AllowDragDrop property is set to DefaultBoolean.Default, the column’s behavior is controlled by the ASPxGridView’s ASPxGridViewBehaviorSettings.AllowDragDrop property.

Concept

Move Columns

Example

Web Forms (declaratively):

ASPX

<dx:ASPxGridView ID="ASPxGridView1" runat="server" ...>
    ...
    <SettingsBehavior AllowDragDrop="false" />
    <Columns>        
        <dx:GridViewDataTextColumn FieldName="QuantityPerUnit" VisibleIndex="1">
            <Settings AllowDragDrop="True" />
        </dx:GridViewDataTextColumn>
        ...
    </Columns>
</dx:ASPxGridView>

Web Forms (in code):

C#

ASPxGridView grid1 = new ASPxGridView();
grid1.ID = "grid1";
Page.Form.Controls.Add(grid1);
...
grid1.SettingsBehavior.AllowDragDrop = DevExpress.Utils.DefaultBoolean.False;

GridViewDataTextColumn productColumn = new GridViewDataTextColumn();
productColumn.FieldName = "QuantityPerUnit";
productColumn.Settings.AllowDragDrop = DevExpress.Utils.DefaultBoolean.True;

MVC:

C#

@Html.DevExpress().GridView(settings => {
    settings.Name = "grid";
    settings.SettingsBehavior.AllowDragDrop = DevExpress.Utils.DefaultBoolean.False;
    GridViewDataTextColumn productColumn = new GridViewDataTextColumn();
    productColumn.FieldName = "QuantityPerUnit";
    productColumn.Settings.AllowDragDrop = DevExpress.Utils.DefaultBoolean.True;
    ...
}).Bind(Model).GetHtml()

Online Demos

• Web Forms: ASPxGridView - Column Moving

• MVC: GridView - Column Moving