When you click on the change data button the data will change in Tab1 and Tab2. But when for example Tab2 is visible then the data in Tab1 is not updated when you go to that tab. When you resize the app then the data becomes visible.
If you use a TrueType font for the DataGrid column's OptionsButtonFontFamily, it is not respected and falls back to a default OS font.
Workaround
The only workaround at this time is to create a custom column HeaderTemplate with a custom options button and hide the default options button.
<dataGrid:RadDataGrid x:Name="dataGrid" ...>
<dataGrid:RadDataGrid.Columns>
<dataGrid:DataGridTextColumn x:Name="productNameColumn" PropertyName="ProductName">
<dataGrid:DataGridTextColumn.HeaderContentTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Label Text="Name" TextColor="Black"/>
<Label FontFamily="MyCustomFont.ttf#MyCustomFont"
Text=""
TextColor="Orange" HorizontalOptions="End" HorizontalTextAlignment="End" Grid.Column="1">
<Label.GestureRecognizers>
<TapGestureRecognizer Tapped="TapGestureRecognizer_Tapped"/>
</Label.GestureRecognizers>
</Label>
</Grid>
</DataTemplate>
</dataGrid:DataGridTextColumn.HeaderContentTemplate>
<dataGrid:DataGridTextColumn.HeaderStyle>
<dataGrid:DataGridColumnHeaderStyle OptionsButtonFontSize="0" FilterIndicatorFontSize="0"/>
</dataGrid:DataGridTextColumn.HeaderStyle>
</dataGrid:DataGridTextColumn>
</dataGrid:RadDataGrid.Columns>
</dataGrid:RadDataGrid>In the code-behind, we use reflection to access the column's command context and invoke the options menu via DataGrid command service.
public partial class YourPage : ContentPage
{
private readonly MethodInfo generateOptionsTapContextMethodInfo;
public YourPage()
{
InitializeComponent();
this.generateOptionsTapContextMethodInfo = this.dataGrid.GetType().GetMethod(
"GenerateFilteringCommandContext",
BindingFlags.NonPublic | BindingFlags.Instance);
}
private void TapGestureRecognizer_Tapped(object sender, EventArgs e)
{
if (this.generateOptionsTapContextMethodInfo != null)
{
// Get a reference to the column, this is needed to invoke a command
var context = this.generateOptionsTapContextMethodInfo.Invoke(
this.dataGrid,
new object[] { this.productNameColumn });
// Invoke the command service that opens the options button
this.dataGrid.CommandService.ExecuteDefaultCommand(
Telerik.XamarinForms.DataGrid.Commands.DataGridCommandId.OptionsTap,
context);
}
}
}
<Style TargetType="telerikGrid:DataGridColumn">
<Setter Property="HeaderStyle">
<telerikGrid:DataGridColumnHeaderStyle TextFontSize="11" TextFontAttributes="Bold" BorderThickness="1" BorderColor="LightGray"/>
</Setter>
<Setter Property="CellContentStyle">
<telerikGrid:DataGridTextCellStyle FontSize="10"/>
</Setter>
</Style>
When you edit a value of a certain item of the DataGrid and keyboard is displayed, while the focus is still in the input and the row is scrolled away, the keyboard will stay open on Android.
In addition, if you return back to the edited cell, the row will display as if it were on focus, the cell shows the editor underline, the keyboard is still open, but there will be no focus. You will be required to click on the cell to get focus again.
Lastly, only on Android 5.1, if the edited value is a number, when you scroll the cell out of view, the keyboard changes from the numerical to alphanumerical (default).
You can reproduce this by changing input language to any region that uses a comma decimal separator (e.g. Duetsch). The comma is ignored, ultimately corrupting the data
If you define a PropertyGroupDescriptor in XAML or in page constructor and the PropertyName is set to a nested property, the grouping is not applied.
Grouping by a nested property works correctly when called from the Filtering UI or on a button click action.
I have designed datagrid like weekly signin details
But i required datagrid with sub header like ,
Please provide better solution to design for sub header with main header
Column names in column selector are not visible in Android the first time the column selector is shown. This happens only in the case UserFilterMode is disabled.
when using automatic column generation you don't have easy access to the column being created so that you can apply customizations (Header, style, etc).
Please implement the same event that UI for WPF has, see it here: https://docs.telerik.com/devtools/wpf/controls/radgridview/events/column-resize-event#autogeneratingcolumn