How to declared DataGrid with generic parameter in XAML

BitSmithy 2,141

Hello,

I want to extend DataGrid (from UWP Toolkit).

I tried in user class do such definition

public class MyDataGrid<T> : DataGrid
{
...
}

but it probably isnt the right way, because XAML doesnt see such extended DataGrid.

How to extends DataGrid, but extended class should have generic parameter <T>? Is it possible?

Ivanich 306 Reputation points

2021-02-06T11:44:56.517+00:00

What are you trying to achieve deriving from DataGrid?
BitSmithy 2,141 Reputation points

2021-02-08T09:33:13.983+00:00

I am trying to code some things wich I must code for evry app when using DataGrid. I want to create better code reusability.
For example for every my app AutoGeneratingColums event handler is the same. Sorting is the same, Filtering is the same, etc.
Ivanich 306 Reputation points

2021-02-08T11:55:26.793+00:00

Wouldn't it be simplier to create custom Behaviors and assign them in a custom Style targeting DataGrid?
BitSmithy 2,141 Reputation points

2021-02-12T16:04:19.94+00:00

Maybe, but I know nothing about custom Behaviors. For example I want to have custom AutoGeneratingColumne event handler
Ivanich 306 Reputation points

2021-02-12T16:35:29.173+00:00

They are available for UWP as Nuget package: https://www.nuget.org/packages/Microsoft.Xaml.Behaviors.Uwp.Managed/2.0.1

Here are samples: https://github.com/microsoft/XamlBehaviors/tree/master/samples/CS

To handle an event you need EventTriggerBehavior and custom Action. This case is covered in samples:
https://github.com/microsoft/XamlBehaviors/blob/master/samples/CS/XAMLBehaviorsSample/CustomActionControl.xaml
https://github.com/microsoft/XamlBehaviors/blob/master/samples/CS/XAMLBehaviorsSample/ContentDialogPopUp.cs

You can assign behavior to DataGrid in custom style: https://social.msdn.microsoft.com/Forums/vstudio/en-US/145d7719-f2f5-43c4-b051-1c356c1eae60/how-to-set-interactivity-behavior-using-style?forum=wpf

1 answer

Ivanich 306 Reputation points

2021-02-06T11:42:37.33+00:00

Perhaps, your new derived class is defined in the namespace that is not referenced in XAML. Add clr-namespace directive to make your new control visible.
Please sign in to rate this answer.
BitSmithy 2,141 Reputation points

2021-02-08T11:05:05.277+00:00

No, this is not a problem. The problem is that my class is generic. I dont know how to declare it in XAML.

Ivanich 306 Reputation points

2021-02-15T15:20:19.91+00:00

For generic types, there was x:TypeArguments in WPF, but it seems like it's not available in UWP
Sign in to comment

Use comments to ask for clarification, additional information, or improvements to the question.

Share via

How to declared DataGrid with generic parameter in XAML

1 answer

Your answer