WPF中怎样取得ItemsControl里面DataTemplate的控件？？？

Question

小弟有个问题，给ItemsControl绑定了数据给Label，同时Label的Content当鼠标划过时变大的效果，
但我想在绑定的过程中对于有些数据把 鼠标划过时变大的效果 去掉，该怎样做呢？就是相当于.net中一个Repeater有OnItemDataBinding事件一样，这种在WPF里怎样做呢？
<ItemsControl x:Name="icMenus">
   <ItemsControl.ItemTemplate>
       <DataTemplate>
          <Label Name="lblMenu" Content="{Binding Path=name}">
              <Label.Style>
                  <Style TargetType="{x:Type Label}">
                      <Style.Setters>
                         <Setter Property="Cursor" Value="Hand"></Setter>
                      </Style.Setters>
                      <Style.Triggers>
                          <Trigger Property="IsMouseOver" Value="true">
                                <Setter Property="RenderTransform">
                                      <Setter.Value>
                                           <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                      </Setter.Value>
                                </Setter>
                         </Trigger>
                    </Style.Triggers>
                 </Style>
              </Label.Style>
          </Label>
    </DataTemplate>
  </ItemsControl.ItemTemplate>
</ItemsControl>

Answer 1

两种方法吧：
第一种肯定管用的方法就是为Label加事件xaml代码如下：
<ItemsControl x:Name="icMenus">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Label Name="lblMenu" Content="{Binding Path=name}" MouseEnter="lblMenu_MouseEnter" MouseLeave="lblMenu_MouseLeave">
                        <Label.Style>
                            <Style TargetType="{x:Type Label}">
                                <Style.Setters>
                                    <Setter Property="Cursor" Value="Hand"></Setter>
                                </Style.Setters>
                                <!--<Style.Triggers>
                                    <Trigger Property="IsMouseOver" Value="true">
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>
                                        </Setter>
                                    </Trigger>
                                </Style.Triggers>-->
                            </Style>
                        </Label.Style>
                    </Label>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
C#代码如下
private void lblMenu_MouseEnter(object sender, MouseEventArgs e)
        {
            Label label = sender as Label;
            if (label != null)
            {
                if (label.Content.ToString() == "right")//如果条件正确
                {
                    ScaleTransform scale = new ScaleTransform(1.05, 1.05);
                }
            }
        }        private void lblMenu_MouseLeave(object sender, MouseEventArgs e)
        {
            Label label = sender as Label;
            if (label != null)
            {
                ScaleTransform scale = new ScaleTransform(1, 1);
            }
        }第二种方法有条件限制的：如果Binding给Label的数据可枚举的话，可以用MutiTrigger来实现你想要的功能，xaml代码如下：
 <ItemsControl x:Name="icMenus">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Label Name="lblMenu" Content="{Binding Path=name}">
                        <Label.Style>
                            <Style TargetType="{x:Type Label}">
                                <Style.Setters>
                                    <Setter Property="Cursor" Value="Hand"></Setter>
                                </Style.Setters>
                                <Style.Triggers>
                                    <MultiTrigger>
                                        <MultiTrigger.Conditions>
                                            <Condition Property="IsMouseOver" Value="true"/>
                                            <Condition Binding="{Binding}" Value="right" />
                                        </MultiTrigger.Conditions>
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>
                                        </Setter>
                                    </MultiTrigger>
                                </Style.Triggers>
                            </Style>
                        </Label.Style>
                    </Label>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>

Answer 2

第二种方法代码再贴一下： <ItemsControl x:Name="icMenus">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Label Name="lblMenu" Content="{Binding Path=name}">
                        <Label.Style>
                            <Style TargetType="{x:Type Label}">
                                <Style.Setters>
                                    <Setter Property="Cursor" Value="Hand"></Setter>
                                </Style.Setters>
                                <Style.Triggers>
                                    <MultiTrigger>
                                        <MultiTrigger.Conditions>
                                            <Condition Property="IsMouseOver" Value="true"/>
                                            <Condition Binding="{Binding}" Value="right" />
                                        </MultiTrigger.Conditions>
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>
                                        </Setter>
                                    </MultiTrigger>
                                </Style.Triggers>
                            </Style>
                        </Label.Style>
                    </Label>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>

Answer 3

第一种方法的c#代码少加一句代码，两种方法都重贴一下：
两种方法吧：
第一种肯定管用的方法就是为Label加事件xaml代码如下：
<ItemsControl x:Name="icMenus">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Label Name="lblMenu" Content="{Binding Path=name}" MouseEnter="lblMenu_MouseEnter" MouseLeave="lblMenu_MouseLeave">
                        <Label.Style>
                            <Style TargetType="{x:Type Label}">
                                <Style.Setters>
                                    <Setter Property="Cursor" Value="Hand"></Setter>
                                </Style.Setters>
                                <!--<Style.Triggers>
                                    <Trigger Property="IsMouseOver" Value="true">
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>
                                        </Setter>
                                    </Trigger>
                                </Style.Triggers>-->
                            </Style>
                        </Label.Style>
                    </Label>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
C#代码如下
private void lblMenu_MouseEnter(object sender, MouseEventArgs e)
        {
            Label label = sender as Label;
            if (label != null)
            {
                if (label.Content.ToString() == "right")//如果条件正确
                {
                    ScaleTransform scale = new ScaleTransform(1.05, 1.05);
                    label.RenderTransform = scale;
                }
            }
        }        private void lblMenu_MouseLeave(object sender, MouseEventArgs e)
        {
            Label label = sender as Label;
            if (label != null)
            {
                ScaleTransform scale = new ScaleTransform(1, 1);
                label.RenderTransform = scale;
            }
        }第二种方法有条件限制的：如果Binding给Label的数据可枚举的话，可以用MutiTrigger来实现你想要的功能，xaml代码如下：<ItemsControl x:Name="icMenus">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Label Name="lblMenu" Content="{Binding Path=name}">
                        <Label.Style>
                            <Style TargetType="{x:Type Label}">
                                <Style.Setters>
                                    <Setter Property="Cursor" Value="Hand"></Setter>
                                </Style.Setters>
                                <Style.Triggers>
                                    <MultiTrigger>
                                        <MultiTrigger.Conditions>
                                            <Condition Property="IsMouseOver" Value="true"/>
                                            <Condition Binding="{Binding}" Value="right" />
                                        </MultiTrigger.Conditions>
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>
                                        </Setter>
                                    </MultiTrigger>
                                </Style.Triggers>
                            </Style>
                        </Label.Style>
                    </Label>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>

Answer 4

太感谢了，您说的第一种方法，我不能用啊，因为我需要直接来设置Label的Style，而不是等到MouseEnter或Leave了，
第二种是要用MultiTrigger，我不太懂，您能帮我解释下么？
<Condition Binding="{Binding}" Value="right" />拜托了

Answer 5

说一下想要什么效果？第一种方法是完全可以做到的。
至于第二种方法：<Condition Binding="{Binding}" Value="right" />
表示如果当前Binding给Label的数据等于字符串"right"的话，将使Label变大

Answer 6

需求是这样的：我从数据库返回一个List，把它绑定到Listbox上，listbox里的datatempalte是Label，这个Label要求鼠标滑过时要字体放大，并且高亮；而数据库返回的List中，如果其中一个属性Ischecked=true的数据，那么Label的字体就自动放大并且高亮，不论鼠标滑过与否。大概就是要求这样，我不想动态的生成Label，所以才用的listbox来Binding的，可是问题就来了，呵呵。
麻烦您了

Answer 7

你的需求用我贴的第一种方法是能实现的，不过既然你的判断条件是一个bool类型的，用第二种方法就好了，
xaml代码如下： <ItemsControl x:Name="icMenus">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <Label Name="lblMenu" Content="{Binding Path=name}">
                        <Label.Style>
                            <Style TargetType="{x:Type Label}">
                                <Style.Setters>
                                    <Setter Property="Cursor" Value="Hand"></Setter>
                                </Style.Setters>
                                <Style.Triggers>
                                    <Trigger Property="IsMouseOver" Value="true">
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>
                                        </Setter>
                                    </Trigger>
                                    <DataTrigger Binding="{Binding Path=IsChecked}" Value="true">
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>
                                        </Setter>
                                    </DataTrigger>
                                </Style.Triggers>
                            </Style>
                        </Label.Style>
                    </Label>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>

Answer 8

多谢了， 顺便问一下，<DataTrigger Binding="{Binding Path=IsChecked}" Value="true">
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>
                                        </Setter>
                                    </DataTrigger>
这个可以加多条件么？
比如要再加个条件呢？有些Label想把背景设置成 黑色的

Answer 9

放大以及黑色背景效果:<DataTrigger Binding="{Binding Path=IsChecked}" Value="true">
                                        <Setter Property="RenderTransform">
                                            <Setter.Value>
                                                <ScaleTransform ScaleX="1.05" ScaleY="1.05"/>
                                            </Setter.Value>                                 
                                        </Setter>
                                        <Setter Property="Background" Value="Black" />
                                    </DataTrigger>