Filtering hierarchial data grid not working on collapsed nodes

johan · November 22, 2022, 11:52am

Hi!
Filtering doesn't apply to collapsed nodes. You can try it from the demo https://blazor.radzen.com/datagrid-selfref-hierarchy
collapse the node => Filter name: contains "rep"
Best regards,
Johan

enchev · November 22, 2022, 1:31pm

This is expected since data for collapsed rows are not yet loaded.

johan · November 22, 2022, 2:09pm

Ok any hints on how I can implement this functionality?
Seems like a must have feature of a grid.
A working solution is to expand all nodes when applying a filter. Is there an equivalent to onfiltering event?

enchev · November 22, 2022, 2:21pm

The whole magic is here:

github.com

radzenhq/radzen-blazor/blob/master/Radzen.Blazor/RadzenDataGrid.razor.cs#L1232-L1284


      
          {
              get { return _emptyText; }
              set
              {
                  if (value != _emptyText)
                  {
                      _emptyText = value;
                  }
              }
          }
          
          /// <summary>
          /// Gets or sets the empty template shown when Data is empty collection.
          /// </summary>
          /// <value>The empty template.</value>
          [Parameter]
          public RenderFragment EmptyTemplate { get; set; }
          
          /// <summary>
          /// Gets or sets the edit template.

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feel free to submit pull request!