How to improve GridComboBoxColumn dropdown opening time in WPF Grid?
GridComboBoxColumn in SfDataGrid 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.
XAML
<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.
You can refer to our WPF Grid 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 Grid example to understand how to create and manipulate data.
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