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V25.1
  • DxTreeList.GetDataItemValue(Object, String) Method

    Returns the value of the specified field for the specified data item.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    Declaration

    public object GetDataItemValue(
        object dataItem,
        string fieldName
    )

    Parameters

    Name Type Description
    dataItem Object

    The data item whose field value should be returned.

    fieldName String

    The name of the data field whose value should be returned.

    Returns

    Type Description
    Object

    The field value.

    Remarks

    Call the GetDataItemValue method when the TreeList is bound to a collection of anonymous objects. In other cases, you can cast a data item to a required type and use the {DataItem.FieldName} notation instead. You can also call the GetRowValue(Int32, String) method to get a field value for a data row with the specified visible index.

    The following example calls the GetDataItemValue method to get the selected data item’s Name:

    <style>
        .my-button {
            width: 200px;
        }
    </style>
    
    <DxTreeList @ref="MyTreeList"
                Data="TreeListData"
                KeyFieldName="Id"
                ParentKeyFieldName="ParentId"
                SelectionMode="TreeListSelectionMode.Single"
                @bind-SelectedDataItem="@SelectedDataItem">
        <Columns>
            <DxTreeListSelectionColumn />
            <DxTreeListDataColumn FieldName="Name" Caption="Task" />
            <DxTreeListDataColumn FieldName="EmployeeName" />
            <DxTreeListDataColumn FieldName="StartDate" />
            <DxTreeListDataColumn FieldName="DueDate" />
        </Columns>
    </DxTreeList>
    <p />
    <DxButton Click="OnGetSelectedTask" CssClass="my-button" Text="Get Selected Task" />
    <p />
    Selected Task: @SelectedTaskInfo
    
    @code {
        ITreeList MyTreeList { get; set; }
        object TreeListData { get; set; }
        object SelectedDataItem { get; set; }
        string SelectedTaskInfo { get; set; }
    
        void OnGetSelectedTask() {
            SelectedTaskInfo = (string)MyTreeList.GetDataItemValue(SelectedDataItem, "Name");
        }
    }
    

    Blazor TreeList Get Data Item Value

    See Also