IDropDownEditSettings.ShowDropDownButton Property

Specifies whether the editor displays the built-in button that invokes a drop-down window.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.1.dll

NuGet Package: DevExpress.Blazor

Declaration

[DefaultValue(true)]
[Parameter]
bool ShowDropDownButton { get; set; }

Property Value

Type	Default	Description
Boolean	true	true to display the drop-down button; false to hide the drop-down button.

Remarks

Use the ShowDropDownButton property to show and hide the editor’s drop-down button at runtime. To hide the button in markup, use the DxDropDownEditSettings.ShowDropDownButton property.

The IDropDownEditSettings interface allows you to get and customize settings of editors that contain a drop-down window. You can get editor settings in the following ways. Note that you can cast settings to the base IDropDownEditSettings interface or to an editor-specific interface.

• Call the GetColumnEditSettings method to get editor settings of the column bound to the specified data source field.

  Important

  You need to enclose your code between BeginUpdate and EndUpdate method calls to change values of Grid component parameters outside the Grid component markup. Otherwise, an exception occurs.

  var hireDateEditSettings = e.Grid.GetColumnEditSettings<IDropDownEditSettings>("HireDate");
  // or var hireDateEditSettings = e.Grid.GetColumnEditSettings<IDateEditSettings>("HireDate");
  if(hireDateEditSettings != null) {
      e.Grid.BeginUpdate();
      hireDateEditSettings.ShowDropDownButton = false;
      e.Grid.EndUpdate();
  }
  

• Handle the CustomizeFilterRowEditor event to customize a cell editor in the filter row.

  void Grid_CustomizeFilterRowEditor(GridCustomizeFilterRowEditorEventArgs e) {
      if(e.EditSettings is IDropDownEditSettings hireDateEditSettings)
      // or if(e.EditSettings is IDateEditSettings hireDateEditSettings)
          hireDateEditSettings.ShowDropDownButton = false;
  }
  

• Handle the CustomizeDataRowEditor event to customize a cell editor in a data row.

  void Grid_CustomizeDataRowEditor(GridCustomizeDataRowEditorEventArgs e) {
      if(e.EditSettings is IDropDownEditSettings hireDateEditSettings)
      // or if(e.EditSettings is IDateEditSettings hireDateEditSettings)
          hireDateEditSettings.ShowDropDownButton = false;
  }