Silverlight的 - 獲取一個DataGrid

我有一個DataGrid這將有兩個文本框會從列表Silverlight的 - 獲取一個DataGrid

這是簡單而精緻的被綁定內從一個文本框更新單元格內容的價值...

假設用戶將值「bbb」更改爲123，然後刪除記錄「ccc」，此時網格會刷新...此時更改的值將被刪除！原來的價值是綁定的！

我需要收集datagrid的單元格內容的當前值如何？

下面是我的示例代碼：

MainPage.XAML 


<UserControl x:Class="SampleDataGridApplication.MainPage" 
    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" 
    d:DesignHeight="600" d:DesignWidth="400" Loaded="UserControl_Loaded" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"> 
    <Grid x:Name="LayoutRoot" Background="White"> 
     <Border Name="bdAddUsersCSVButtons" Width="380" Height="40" Canvas.Top="60" Margin="12,530,8,30"> 
      <Canvas Width="Auto" Height="Auto"> 
       <Button Content="Remove" Height="30" Width="100" HorizontalAlignment="Left" Name="btnRemove" Canvas.Left="150" Canvas.Top="5" Cursor="Hand" 
           FontFamily="Lucida Grande" FontSize="13" FontStyle="Normal" FontWeight="Bold" VerticalAlignment="Top" Click="btnRemove_Click" /> 
       <Button Content="Reset" Height="30" Width="100" Name="btnReset" HorizontalAlignment="Left" Canvas.Left="280" Canvas.Top="5" VerticalAlignment="Top" Cursor="Hand" 
           FontFamily="Lucida Grande" FontSize="13" FontStyle="Normal" FontWeight="Bold" Click="btnReset_Click" /> 
      </Canvas> 
     </Border> 
     <sdk:DataGrid AutoGenerateColumns="False" Height="500" HorizontalAlignment="Left" Margin="10,10,0,0" Name="dataGrid1" VerticalAlignment="Top" Width="380" > 
      <sdk:DataGrid.Columns> 
       <sdk:DataGridTemplateColumn CanUserResize="False" Header="" Width="30" CanUserReorder="False"> 
        <sdk:DataGridTemplateColumn.CellTemplate> 
         <DataTemplate> 
          <CheckBox Name="chboxUser" IsChecked="False" VerticalAlignment="Center" Padding="0,15,0,0" Width="20" Height="20" CommandParameter="{Binding EmailID}" /> 
         </DataTemplate> 
        </sdk:DataGridTemplateColumn.CellTemplate> 
       </sdk:DataGridTemplateColumn> 
       <sdk:DataGridTemplateColumn CanUserResize="False" Header="FirstName" Width="100" CanUserReorder="False" IsReadOnly="True"> 
        <sdk:DataGridTemplateColumn.CellTemplate> 
         <DataTemplate> 
          <TextBox Name="txtFirstName" FontFamily="Lucida Grande" Width="80" Height="22" Foreground="#666666" FontSize="9" FontStyle="Normal" Margin="0,3,0,0" TabIndex="0" 
                 FontWeight="Normal" Text="{Binding FirstName}"></TextBox> 
         </DataTemplate> 
        </sdk:DataGridTemplateColumn.CellTemplate> 
       </sdk:DataGridTemplateColumn> 
       <sdk:DataGridTemplateColumn CanUserResize="False" Header="EmailID" Width="245" CanUserReorder="False" IsReadOnly="True"> 
        <sdk:DataGridTemplateColumn.CellTemplate> 
         <DataTemplate> 
          <TextBox Name="txtEmailID" FontFamily="Lucida Grande" Width="80" Height="22" Foreground="#666666" FontSize="9" FontStyle="Normal" Margin="0,3,0,0" TabIndex="0" 
                 FontWeight="Normal" Text="{Binding EmailID}"></TextBox> 
         </DataTemplate> 
        </sdk:DataGridTemplateColumn.CellTemplate> 
       </sdk:DataGridTemplateColumn> 
      </sdk:DataGrid.Columns> 
     </sdk:DataGrid> 
    </Grid> 
</UserControl> 


MainPage.xaml.cs 

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; 

namespace SampleDataGridApplication 
{ 
    public partial class MainPage : UserControl 
    { 
     List<Users> _lstUsers = new List<Users>(); 
     public MainPage() 
     { 
      InitializeComponent(); 
     } 

     private void UserControl_Loaded(object sender, RoutedEventArgs e) 
     { 
      GenerateList(); 
      LoadValues(); 
     } 

     private void LoadValues() 
     { 
      dataGrid1.ItemsSource = _lstUsers; 
     } 

     private void GenerateList() 
     { 
      _lstUsers = new List<Users> 
      { 
        new Users { FirstName="aaa", EmailID="[email protected]" }, 
        new Users { FirstName="bbb", EmailID="[email protected]" }, 
        new Users { FirstName="ccc", EmailID="[email protected]" }, 
        new Users { FirstName="ddd", EmailID="[email protected]" }, 
        new Users { FirstName="eee", EmailID="[email protected]" }, 
        new Users { FirstName="fff", EmailID="[email protected]" }, 
        new Users { FirstName="ggg", EmailID="[email protected]" }, 
        new Users { FirstName="hhh", EmailID="[email protected]" }, 
      }; 
     } 



    private void btnRemove_Click(object sender, RoutedEventArgs e) 
      { 
       List<Users> _lstTemp = dataGrid1.ItemsSource as List<Users>; 
//Here i'm reading the DataGrid Values; i need to collect current values of the records how? 
       foreach (Users _RowValue in dataGrid1.ItemsSource) 
       { 
       CheckBox _CheckBox = dataGrid1.Columns[0].GetCellContent(_RowValue) as CheckBox; 
       if (_CheckBox.IsChecked == true) 
       { 
        _lstTemp = (from value in _lstTemp.Where(Item=> Item.EmailID!= _CheckBox.CommandParameter.ToString()) select value).ToList(); 
       } 
      } 
      dataGrid1.ItemsSource = null; 
      dataGrid1.ItemsSource = _lstTemp; 
     } 

     private void btnReset_Click(object sender, RoutedEventArgs e) 
     { 
      dataGrid1.ItemsSource = null; 
      LoadValues(); 
     } 

     public class Users 
     { 
      public string FirstName { get; set; } 
      public string EmailID { get; set; } 
     } 
    } 
}

來源

2013-06-28 sankar 2.0

我得到的回答終於

添加KEY_UP事件到文本框

，並在後面的代碼：

private void txtFirstName_KeyUp(object sender, KeyEventArgs e) 
     { 
      List<Users> _lstTemp = dataGrid1.ItemsSource as List<Users>; 
      var selectedrow = dataGrid1.SelectedItem as Users; 
      TextBox _TextFirstName = dataGrid1.Columns[1].GetCellContent(selectedrow) as TextBox; 

      (from value in _lstTemp 
      where value.EmailID == selectedrow.EmailID 
      select value).ToList().ForEach(value => value.FirstName = _TextFirstName.Text); 

      dataGrid1.ItemsSource = _lstTemp; 
     }

我很高興它解決了我的問題，但讓我狂放，沒有人是有興趣分享想法:(

來源

2013-06-29 06:47:19

Silverlight的 - 獲取一個DataGrid

回答

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