TreeListDropTargetMode Enum

Lists values that specify the drop position behavior. Applicable only to drag and drop operations initiated externally.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v25.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public enum TreeListDropTargetMode

Members

Name	Description	Image
BetweenRows	The drop position is defined by TargetItem and DropPosition properties.
Component	The drop position is not defined. You need to implement logic in the ItemsDropped event handler to specify where to insert rows.

Related API Members

The following properties accept/return TreeListDropTargetMode values:

• DxTreeList.DropTargetMode
• ITreeList.DropTargetMode

Remarks

In the following snippet, the first TreeList accepts rows from the second TreeList. The DropTargetMode property of the first TreeList is Component.

<DxTreeList @ref="TreeList"
            Data="CompletedTasks"
            KeyFieldName="Id"
            ParentKeyFieldName="ParentId"
            ItemsDropped="TreeList_ItemsDropped"
            DropTargetMode="GridDropTargetMode.Component">
    <Columns>
        <DxTreeListDataColumn FieldName="Name" Caption="Task" SortOrder="TreeListColumnSortOrder.Ascending" />
        <DxTreeListDataColumn FieldName="EmployeeName" Caption="Assigned To" TextAlignment="TreeListTextAlignment.Left" Width="200px" />
        <DxTreeListDataColumn FieldName="StartDate" Width="100px" />
        <DxTreeListDataColumn FieldName="DueDate" Width="100px" />
    </Columns>
</DxTreeList>

<DxTreeList @ref="TreeList"
            Data="PendingTasks"
            KeyFieldName="Id"
            ParentKeyFieldName="ParentId"
            AllowDragRows="true"
            AllowedDropTarget="GridAllowedDropTarget.External">
    <Columns>
        <DxTreeListDataColumn FieldName="Name" Caption="Task" SortOrder="TreeListColumnSortOrder.Ascending" />
        <DxTreeListDataColumn FieldName="EmployeeName" Caption="Assigned To" TextAlignment="TreeListTextAlignment.Left" Width="200px" />
        <DxTreeListDataColumn FieldName="StartDate" Width="100px" />
        <DxTreeListDataColumn FieldName="DueDate" Width="100px" />
    </Columns>
</DxTreeList>