学步园

好像wpf没有现成的组件.自己就用用户控件写了一个

using System;<br /> using System.Collections.Generic;<br /> using System.Linq;<br /> using System.Text;<br /> using System.Windows;<br /> using System.Windows.Controls;<br /> using System.Windows.Data;<br /> using System.Windows.Documents;<br /> using System.Windows.Input;<br /> using System.Windows.Media;<br /> using System.Windows.Media.Imaging;<br /> using System.Windows.Navigation;<br /> using System.Windows.Shapes;<br /> namespace DownBox2<br /> {<br /> /// <summary><br /> /// UserControl1.xaml 的交互逻辑<br /> /// </summary><br /> public partial class DownBox : Border<br /> {<br /> private int i=0;<br /> private Double H=20,W=120;<br /> private LinearGradientBrush LGB;<br /> private FontFamily DBFont;<br /> private int DBFontSize=15;<br /> private List<String> ItemContent;<br /> public DownBox()<br /> {<br /> InitializeComponent();<br /> Object ob = FindResource("s1");<br /> LGB = (LinearGradientBrush)ob;<br /> ItemContent = new List<string>();<br /> }<br /> public void SetWAndH(Double H, Double W)<br /> {<br /> this.H = H;<br /> this.W = W;<br /> }<br /> public void SetDBFontSize(int DBFontSize)<br /> {<br /> this.DBFontSize = DBFontSize;<br /> }<br /> public void SetDBFont(FontFamily DBFont)<br /> {<br /> this.DBFont = DBFont;<br /> }<br /> public void AddRow(String s)<br /> {<br /> g.RowDefinitions.Add(new RowDefinition());<br /> TextBlock tb = new TextBlock();<br /> tb.Height = H;<br /> tb.Width = W;<br /> tb.Text = s;<br /> tb.FontFamily = DBFont;<br /> tb.FontSize = DBFontSize;<br /> tb.MouseEnter+=new MouseEventHandler(tb_MouseEnter);<br /> tb.MouseLeave += new MouseEventHandler(tb_MouseLeave);<br /> g.Children.Add(tb);<br /> tb.SetValue(Grid.RowProperty,i);<br /> i++;<br /> ItemContent.Add(s);<br /> }<br /> public String GetItemContent(int i) //获取指定下拉框文本<br /> {<br /> return ItemContent[i];<br /> }<br /> public Boolean ReMoveItemContent(int i)<br /> {<br /> if (i < ItemContent.Count)<br /> {<br /> g.Children.RemoveAt(i);<br /> ItemContent.RemoveAt(i);<br /> return true;<br /> }<br /> return false;<br /> }<br /> public void tb_MouseLeave(Object sender, MouseEventArgs e)<br /> {<br /> TextBlock tb = (TextBlock)sender;<br /> tb.Background = Brushes.White;<br /> }<br /> public void tb_MouseEnter(Object sender,MouseEventArgs e)<br /> {<br /> TextBlock tb=(TextBlock)sender;<br /> tb.Background = LGB;<br /> }<br /> public void SetVi()<br /> {<br /> this.Opacity = 1;<br /> }<br /> public void SetHide()<br /> {<br /> this.Opacity = 0;<br /> }<br /> private void Border_LostFocus(object sender, RoutedEventArgs e)<br /> {<br /> this.Opacity = 0;<br /> }<br /> }<br /> } 

以下是xaml中的代码

<Border x:Class="DownBox2.DownBox"<br /> xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"<br /> xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"<br /> xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"<br /> xmlns:d="http://schemas.microsoft.com/expression/blend/2008"<br /> mc:Ignorable="d"<br /> Height="auto" BorderThickness ="1" BorderBrush="Black" LostFocus="Border_LostFocus"><br /> <Grid Name="g"></p> <p> </Grid><br /> </Border><br />  

下面是效果图片: