How to improve GridComboBoxColumn dropdown opening time in WPF DataGrid?
In WPF DataGrid (SfDataGrid) , the GridComboBoxColumn loads the ComboBox as its edit element. When you bind a large collection as ItemsSource, the opening of the ComboBox dropdown is slow. You can overcome this problem by changing the ItemsPanel of ComboBox by editing its style.
In the following code example VirtualizingStackPanel is loaded as ComboBox’s ItemsPanelTemplate to improve dropdown opening performance.
<syncfusion:SfDataGrid x:Name="grid"
AutoGenerateColumns="False"
AllowEditing="True"
AllowFiltering="True"
AllowSorting="True"
ItemsSource="{Binding OrderInfoCollection}"
ColumnSizer="Auto">
<syncfusion:SfDataGrid.Resources>
<ResourceDictionary>
<Style TargetType="ComboBox">
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<VirtualizingStackPanel/>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>
</syncfusion:SfDataGrid.Resources>
</syncfusion:SfDataGrid>Sample Links:
Conclusion
I hope you enjoyed learning how to improve GridComboBoxColumn dropdown opening time in DataGrid.
You can refer to our WPF DataGrid feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our WPF DataGrid example to understand how to create and manipulate data.
For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our other controls.
If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!
