How to put few custom controls dynamicaly inside a datatemplete on Mouse behavior
I have a Datatemplete for List-box Item in which I have a Grid with two columns using WPF. In the first column I want to put few customized controls(Buttons) dynamically using C# in code behind. I don't know how to start and from where should I start, can anybody please help me with some great inputs and examples. Any answer will be greatly appreciate.
Thanks in advance.
XAML code:
<ListBox x:Name="ListBoxItem"
Grid.Row="1"
SelectionMode="Extended"
ScrollViewer.HorizontalScrollBarVisibility="Hidden"
VirtualizingStackPanel.IsVirtualizing="True"
VirtualizingStackPanel.VirtualizationMode="Recycling"
FocusVisualStyle="{x:Null}"
KeyboardNavigation.IsTabStop="False"
Background="DarkGray"
ItemsSource="{Binding}">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel x:Name="ListContent"
IsItemsHost="True"
Width="500"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<DockPanel LastChildFill="True"
HorizontalAlignment="Center"
VerticalAlignment="Center">
<StackPanel DockPanel.Dock="Left"
Width="30"
Height="{Binding Height}">
<--Here I want to put few customize buttons in code behind-->
</StackPanel>
<Image x:Name="MainPage"
Stretch="UniformToFill"
Source="{Binding ImagePath}"
Height="{Binding He开发者_如何学JAVAight}"
Width="{Binding Width}"/>
</DockPanel>
</DataTemplate>
</ListBox.ItemTemplate>
You specified wanting to use code behind, so it would look something like this:
XAML:
<StackPanel Initialized="StackPanel_Initialized" .. />
Code behind:
using MyNamespace;
private void StackPanel_Initialized(object sender, EventArgs e)
{
MyControl newItem = new MyControl();
// Set any other properties
StackPanel parent = sender as StackPanel;
parent.Children.Add(newItem);
}
If you are looking for adding Controls inside a the First column of your grid then put a Panel inside the first column and in code behind add controls as child to that Panel. So as you mentioned in above that you are using DataTemplete then I would like to say that you can access that Panel something like:
Put the below codes inside the event where you wnt to add the controls.
ListBoxItem item = (ListBoxItem)(this.lst.ItemContainerGenerator.ContainerFromIndex(i));
ContentPresenter presenter = FindVisualChild<ContentPresenter>(item);
DataTemplate template = presenter.ContentTemplate;
StackPanel stack = (StackPanel)template.FindName("FirstColumn Panel Name", presenter);
and then call the below method:
private childItem FindVisualChild<childItem>(DependencyObject obj)
where childItem : DependencyObject
{
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(obj); i++)
{
DependencyObject child = VisualTreeHelper.GetChild(obj, i);
if (child != null && child is childItem)
return (childItem)child;
else
{
childItem childOfChild = FindVisualChild<childItem>(child);
if (childOfChild != null)
return childOfChild;
}
}
return null;
}
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