代码之家 › 专栏 › 技术社区 › Hitesh Kansagara

如何减少wpf上下文菜单项的内容长度

wpf

Hitesh Kansagara · 技术社区 · 7 年前

我正在学习WPF并创建类似窗口浏览器的面包屑。但在设置面包屑上下文菜单项长度时面临着问题。我想修改菜单项50的字符长度,当字符长度超过50时,消除多余的字符并设置…最后如下图所示

我的菜单项代码:

<contextmenu>
<contextmenu.itemtemplate>
<层次结构数据模板>
<menuitem header=“绑定用户名”
fontfamily=“Arial”
ftToSt= =“11”
height=“22”margin=“-22,-20,-40,-20”
command=“绑定PlacementTarget.DataContext.SelectObject,
relativesource=relativesource mode=findancestor,
ancestorType=x:类型contextmenu
commandParameter=“绑定”style=“动态源菜单项样式”>
<menuitem.tooltip>
<tooltip content=“绑定用户名”>
</tooltip>
</menuitem.tooltip>
</menuitem>
</hierarchicaldatatemplate>
</contextmenu.itemtemplate>
</contextmenu>
< /代码> 



.

我的菜单项代码:


    <ContextMenu>
   <ContextMenu.ItemTemplate>
    <HierarchicalDataTemplate>
        <MenuItem Header="{Binding UserName }"                                                     
            FontFamily="Arial"
            FontSize="11"
            Height="22" Margin="-22,-20,-40,-20"                                                
            Command="{Binding PlacementTarget.DataContext.SelectObject,
            RelativeSource={RelativeSource Mode=FindAncestor, 
            AncestorType={x:Type ContextMenu}}}" 
            CommandParameter="{Binding}" Style="{DynamicResource MenuItemStyle}">
        <MenuItem.ToolTip>
            <ToolTip Content="{Binding UserName}">
            </ToolTip>
        </MenuItem.ToolTip>
        </MenuItem>
    </HierarchicalDataTemplate>
   </ContextMenu.ItemTemplate>
</ContextMenu>

2 回复 | 直到 7 年前

Coskun Ozogul 7 年前

我认为最简单的方法是创建另一个要在标题上显示的属性:

    public string ShortUserName
    {
        get
        {
            return (UserName.Length > 50) ? UserName.Substring(0, 47) + "..." : UserName;
        }
    }


    <MenuItem Header="{Binding ShortUserName }" 
      Tag={Binding UserName} //If need, you can find the complete username on the Tag property of your menu item.                                                    
      FontFamily="Arial"...

Hitesh Kansagara 7 年前

我发现上下文菜单项标题内容宽度随…最后,当使用如下字符省略号控件从特定宽度超出时,

<MenuItem FontSize="11" Height="22" Margin="-18,-20,-40,-20"                                                                                   
Command="{Binding PlacementTarget.DataContext.CrumbSelectObject,
          RelativeSource={RelativeSource Mode=FindAncestor, 
          AncestorType={x:Type ContextMenu}}}" 
          CommandParameter="{Binding}">
<!-- char ellipsis control -->
<MenuItem.Header>
   <TextBlock MaxWidth="150" 
        TextTrimming="CharacterEllipsis"
        Text="{Binding UserName}" 
        FontFamily="Arial" 
        FontSize="11">
    </TextBlock>
</MenuItem.Header>