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  • WPF绑定各种数据源之object数据源

    一、WPF绑定各种数据源索引

    WPF 绑定各种数据源之Datatable

    WPF绑定各种数据源之object数据源

    WPF绑定各种数据源之xml数据源

    WPF绑定各种数据源之元素控件属性

    Binding的基础可参考WPF 绑定基础

    二、WPF绑定各种数据源之object数据源

    前台代码:

    <Window.Resources>
          <Con:BackgroundConverter x:Key="BackgroundConverter"/>
      </Window.Resources>

      用ListView绑定object数据源

    <ListView Height="262" Margin="0,0,45,51" VerticalAlignment="Bottom" ItemsSource="{Binding}" Name="listView2" HorizontalAlignment="Right" Width="310">
              <ListView.View>
                  <GridView>
                      <GridViewColumn Header="编号" DisplayMemberBinding="{Binding Path=ID}"  Width="100" />
                      <GridViewColumn Header="姓名" DisplayMemberBinding="{Binding Path=Name}" Width="100"/>
                      <GridViewColumn Header="年龄" Width="100">
                          <GridViewColumn.CellTemplate>
                              <DataTemplate>
                                  <TextBlock Grid.Column="1" Text="{Binding Path=Age}" Foreground="{Binding Path=Age, Converter={StaticResource BackgroundConverter}}"/>
                              </DataTemplate>
                          </GridViewColumn.CellTemplate>
                      </GridViewColumn>
                  </GridView>
              </ListView.View>
          </ListView>

      

    后台代码:

    public class BackgroundConverter : IValueConverter
       {
           #region IValueConverter Members
     
           public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
           {
               Color color = new Color();
               int num = int.Parse(value.ToString());
               if (num > 100)
                   color = Colors.Yellow;
               else if (num < 50)
                   color = Colors.LightGreen;
               else
                   color = Colors.LightPink;
               return new SolidColorBrush(color);
           }
     
           public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
           {
               throw new NotImplementedException();
           }
     
           #endregion
       }

      下面是Person类

    public class Person
       {
           private string _ID;
           private string _name;
           private string _age;
           public string ID
           {
               get;
               set;
           }
           public string Name
           {
               get;
               set;
           }
           public int Age
           {
               get;
               set;
           }
       }

      //下面是获得数据源,当然数据源可以是数据库中读出的数据,此处直接创建数据源

    //创建数据源,当然也可以从数据库中获得数据源
    private IList<Person> getPersonInfo()
      {
          IList<Person> pList = new List<Person>();
          for (int i = 40; i < 60; i++)
          {
              Person p = new Person();
              p.ID = "ID"+i;
              p.Name =  "Nmae"+i;
              p.Age = i+1;
              pList.Add(p);
          }
          return pList;
      }
     
    public Window1()
     {
          InitializeComponent();
          listView2.DataContext = getPersonInfo();
      }

      效果图:

     2. 使用Object的另一种方式

    <Window.Resources>
        <Con:BackgroundConverter x:Key="BackgroundConverter"/>
        <ObjectDataProvider x:Key="myPerson" ObjectType="{x:Type Con:Person}"  MethodName="getPersonInfo"/>
    </Window.Resources>

     此时的myPerson对象数据源在是Person类中的getPersonInfo方法。

     (【补充】如果getPersonInfo在不同的类库中,则用如下方式

    <ObjectDataProvider x:Key="myPerson2" ObjectType="{x:Type ClassLibrary1:Person}"  MethodName="getPersonInfo"/>

      使用,ClassLibrary1是类库的名称。并添加命名空间

    xmlns:ClassLibrary1="clr-namespace:ClassLibrary1;assembly=ClassLibrary1"

      ) 

    <ListView Height="262" Margin="0,0,45,51" DataContext="{StaticResource myPerson}" VerticalAlignment="Bottom" ItemsSource="{Binding}" Name="listView2" HorizontalAlignment="Right" Width="310">
               <ListView.View>
                   <GridView>
                       <GridViewColumn Header="编号" DisplayMemberBinding="{Binding Path=ID}"  Width="100" />
                       <GridViewColumn Header="姓名" DisplayMemberBinding="{Binding Path=Name}" Width="100"/>
                       <GridViewColumn Header="年龄" Width="100">
                           <GridViewColumn.CellTemplate>
                               <DataTemplate>
                                   <TextBlock Grid.Column="1" Text="{Binding Path=Age}" Foreground="{Binding Path=Age, Converter={StaticResource BackgroundConverter}}"/>
                               </DataTemplate>
                           </GridViewColumn.CellTemplate>
                       </GridViewColumn>
                   </GridView>
               </ListView.View>
           </ListView>

      http://www.cnblogs.com/linlf03/archive/2011/09/06/2168598.html

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  • 原文地址:https://www.cnblogs.com/sjqq/p/7766273.html
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