向 WPF Datagrid 添加多个按钮

Question

I want to add 2-3 buttons to the rows in the last column of my datagrid using the backend C# and not XAML. I managed to add one button to the cells but I'm having trouble adding anymore past that.

I have tried creating a new FrameworkElementFactory and adding it into the column but it just replaces the previous button instead of adding the button.

        DataGridTemplateColumn buttonColumn = new DataGridTemplateColumn();
        buttonColumn.Header = "Actions";
        buttonColumn.Width = 209;

        DataTemplate buttonTemplate = new DataTemplate();
        FrameworkElementFactory buttonFactory = new FrameworkElementFactory(typeof(Button));
        buttonTemplate.VisualTree = buttonFactory;

        buttonFactory.AddHandler(ButtonBase.ClickEvent, new RoutedEventHandler(Activate));
        buttonFactory.SetValue(ContentProperty, "A");
        buttonColumn.CellTemplate = buttonTemplate;

        dGrid_SavedData.Columns.Add(buttonColumn);

Answer 1

Regardless of whether you create it programmatically or in XAML, a DataTemplate can only have single root element so you should set the VisualTree property to a FrameworkElementFactory for a Panel and use the AppendChild method to add the button factories to the panel factory, eg:

DataGridTemplateColumn buttonColumn = new DataGridTemplateColumn();
buttonColumn.Header = "Actions";
buttonColumn.Width = 209;

DataTemplate buttonTemplate = new DataTemplate();
FrameworkElementFactory panelFactory = new FrameworkElementFactory(typeof(StackPanel));
buttonTemplate.VisualTree = panelFactory;

FrameworkElementFactory buttonAFactory = new FrameworkElementFactory(typeof(Button));
buttonAFactory.AddHandler(ButtonBase.ClickEvent, new RoutedEventHandler(Activate));
buttonAFactory.SetValue(ContentProperty, "A");

FrameworkElementFactory buttonBFactory = new FrameworkElementFactory(typeof(Button));
buttonBFactory.AddHandler(ButtonBase.ClickEvent, new RoutedEventHandler(Activate));
buttonBFactory.SetValue(ContentProperty, "B");

panelFactory.AppendChild(buttonAFactory);
panelFactory.AppendChild(buttonBFactory);

buttonColumn.CellTemplate = buttonTemplate;

dGrid_SavedData.Columns.Add(buttonColumn);

Answer 2

So, I'm on an iPad, so I can't give much detail. First let me say that this is a very hard way to do this and I recommend just about anything else. But if you absolutely have to fully dynamically generate your grid, you need to put the button in a container. For example, a vertical stack panel. Then you can add as many buttons as you want. Good luck!