How to access resources inside a data template? : The Official Microsoft Silverlight.NET Forums

How to access resources inside a data template?

Oct 12, 2008 06:06 PM | LINK

Hi,

I've searched the forums but can't find an answer to this problem:

// here are lots of objects that are data bound

<Grid.Resources>

   // here are some storyboards that animate those objects, eg:
     <Storyboard x:Name="sbShowLargePhoto">
     </Storyboard>

</Grid.Resources>

</Grid>

</DataTemplate>

I cannot seem to access the storyboards in code behind so I can start and stop them etc.

Does anyone know how I can access those resources?

Thanks,

Richard

--------------------------------------
If you can meet with triumph and disaster and treat those two imposters just the same...then you'll be a coder my son.

Jonathan She...

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4951 Posts

Microsoft

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Re: How to access resources inside a data template?

Oct 14, 2008 07:49 AM | LINK

Hi Richard,

It is a little complex in your condition. Fortunately, we can use VisualTreeHelper to get its visual elements. Below is the working example,

</Grid>
</UserControl>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Media.Imaging;

namespace Temp01
{
    public partial class Page : UserControl
    {
        //private int count;
        private List myGridList = new List();      
        public Page()
        {
            InitializeComponent();
            Loaded += new RoutedEventHandler(Page_Loaded);
        }

        void Page_Loaded(object sender, RoutedEventArgs e)
        {
            myListBox.Items.Add((new ListBoxItem()).Content = "aaaa");
            myListBox.Items.Add((new ListBoxItem()).Content = "bbbb");
            myListBox.Items.Add((new ListBoxItem()).Content = "cccc");
        }


        private void btnStart_Click(object sender, RoutedEventArgs e)
        {
            GetChildrenWithParent(myListBox, typeof(Grid));
            if (myGridList != null && myGridList.Count >0) 
            {
                Storyboard mySB = myGridList[2].Resources["myStoryBoard"] as Storyboard;
                if (mySB !=null)
                    mySB.Begin();
            }
        }


        private void GetChildrenWithParent(UIElement parent, Type targetType)
        {
            int count = VisualTreeHelper.GetChildrenCount(parent);

            for (int i = 0; i < count; i++)
            {
                UIElement child = (UIElement)VisualTreeHelper.GetChild(parent, i);
                if (child.GetType() == targetType && ((Grid)child).Name == "gridName")
                {
                    myGridList.Add((Grid)child);
                }
                GetChildrenWithParent(child, targetType);
            }             
        }

        private void btnEnd_Click(object sender, RoutedEventArgs e)
        {
            //myStoryBoard.Stop();
        }

    }
}

Best regards,

Jonathan

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rmcsharry

Member

399 Points

289 Posts

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Re: How to access resources inside a data template?

Oct 16, 2008 07:31 PM | LINK

Thanks Jonathan, without the code example I'd still be confused, but now I'm not ;)

--------------------------------------
If you can meet with triumph and disaster and treat those two imposters just the same...then you'll be a coder my son.

Nisarg More

Member

4 Points

2 Posts

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Re: How to access resources inside a data template?

Sep 20, 2011 09:55 AM | LINK

Hey Jonathan Just Tell Me How to Find Control inside Of DataGrid Header Column

Here is My XAML Code

<navigation:Page x:Class="CheckBoxDemo.Views.MyPages.CheckBoxDemo"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

mc:Ignorable="d"

xmlns:navigation="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Navigation"

xmlns:dg="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"

d:DesignWidth="640" d:DesignHeight="480"

xmlns:dataprimitives="clr-namespace:System.Windows.Controls.Primitives;assembly=System.Windows.Controls.Data"

Title="CheckBoxDemo Page" Loaded="Page_Loaded">

<dg:DataGridTemplateColumn Width="auto">

<dg:DataGridTemplateColumn.HeaderStyle>

<Setter.Value>

</DataTemplate>

</Setter.Value>

</Setter>

</Style>

</dg:DataGridTemplateColumn.HeaderStyle>

<dg:DataGridTemplateColumn.CellEditingTemplate>

</DataTemplate>

</dg:DataGridTemplateColumn.CellEditingTemplate>

</dg:DataGridTemplateColumn>

Now i want to UnCheck that CheckBox located in DataGrid Header on Click Of Button How i can Achieve these Functionality

Any Help Would Be Appreciated

How to access resources inside a data template? RSS

3 replies

rmcsharry