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I have below DataGrid(simplified)

<DataGrid ItemsSource="{Binding Something}"> <DataGrid.Columns> <DataGridTemplateColumn Header="Test"> <DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <Grid> <TextBox Text="{Binding A}"/> </Grid> </DataTemplate> </DataGridTemplateColumn.CellEditingTemplate> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding A}"/> </Grid> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> <DataGridTemplateColumn Header="Test"> <DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <Grid> <TextBox Text="{Binding B}"/> </Grid> </DataTemplate> </DataGridTemplateColumn.CellEditingTemplate> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <Grid> <TextBlock Text="{Binding B}"/> </Grid> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> </DataGrid.Columns> </Datagrid>

Is there any way to move DataTemplate to resources and reuse it for different properties so I don't have to copy and paste DataTemplate for every property?

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2 Answers 2

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6

A pragmatic solution would be to define templates on resource level and wrap them in a 'ContentPresenter' in each column. You still have to define a template for each column explicitly. Still, you can manage the templates in one place and quickly see to which properties your columns are bound.

<DataGrid> <!-- Templates in a single place in resources --> <DataGrid.Resources> <DataTemplate x:Key="CellTemplate"> <TextBlock Text="{Binding}" /> </DataTemplate> <DataTemplate x:Key="EditCellTemplate"> <TextBlock Text="{Binding}" /> </DataTemplate> </DataGrid.Resources> <DataGrid.Columns> <DataGridTemplateColumn> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <ContentPresenter Content="{Binding A}" ContentTemplate="{StaticResource CellTemplate}" /> </DataTemplate> </DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <ContentPresenter Content="{Binding A}" ContentTemplate="{StaticResource EditCellTemplate}" /> </DataTemplate> </DataGridTemplateColumn.CellEditingTemplate> </DataGridTemplateColumn> <DataGridTemplateColumn> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <ContentPresenter Content="{Binding B}" ContentTemplate="{StaticResource CellTemplate}" /> </DataTemplate> </DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <ContentPresenter Content="{Binding B}" ContentTemplate="{StaticResource EditCellTemplate}" /> </DataTemplate> </DataGridTemplateColumn.CellEditingTemplate> </DataGridTemplateColumn> </DataGrid.Columns> </DataGrid>
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1 Comment

For me, the key from your answer that got me functioning was setting the Content="{Binding}" on the ContentPresenter. I was using DataContext="{Binding}" which didn't work, but after changing it to Content I got the binding to finally work.
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You could do it like this:

<DataGrid ItemsSource="{Binding Something}"> <DataGrid.Resources> <DataTemplate x:key="MyTemplate"> <Grid> <TextBox Text="{Binding}"/> </Grid> </DataTemplate> </DataGrid.Resources> <DataGrid.Columns> <DataGridTemplateColumn Header="Test" CellTemplate="{StaticResource MyTemplate}" > </DataGridTemplateColumn> </DataGrid.Columns> </Datagrid>

But then you need to rethink binding logic, as you will need to use cell datacontext in the same template for all the columns.

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4 Comments

As far as I understand {Binding} binds whole object to template , so how I can bind specific property to template column?
@blackcat there is nothing stopping you from having two datatemplates inside the resources (one for when binding to A and one when B), still better than four.
@adminSoftDK still I need four datatemplates (edit and display where I will have {Binding A} and {Binding B}), I am looking generic solution for this
@adminSoftDK make all your bound classes adhere to an Interface which the template only binds to, that way one only needs one template per many different object types.

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