ComboBox中选定项目WPF C＃ [英] Combobox Selected Item WPF c#

问题描述

我想在WPF组合框获取所选的项目。但它返回System.Data.DataRowView。我在XAML代码：

 <组合框名称=ddDeputi保证金=131,85,0,0WIDTH = 327的Horizo​​ntalAlignment =左VerticalAlignment =评出的高度=22
的SelectedValue ={绑定路径= kodeDep，ValidatesOnDataErrors = TRUE，UpdateSourceTrigger =的PropertyChanged}
 Validation.ErrorTemplate ={ X：空}的SelectionChanged =ddDeputi_SelectionChanged加载=ddDeputi_Loaded/> 
  

在我的.cs：

 私人无效ddDeputi_SelectionChanged（对象发件人，SelectionChangedEventArgs E）
 {
 
如果（ddDeputi.SelectedIndex！= -1）
 {
串akode = ddDeputi.SelectedValue.ToString（）; 
 DaUnitKerja ODA =新DaUnitKerja（）; 
的数据集的数据=新的DataSet（）; 
数据= oDa.TampilDir（akode）; 
 ddDir.ItemsSource = data.Tables [0] .DefaultView; 
 ddDir.DisplayMemberPath = data.Tables [0] .Columns [unit_kerja]的ToString（）; 
 ddDir.SelectedValuePath = data.Tables [0] .Columns [科德]的ToString（）。 
 ddSubDir.SelectedIndex = -1; 
 ComboBoxItem CBI =（ComboBoxItem）ddDeputi.ItemContainerGenerator.ContainerFromItem（ddDeputi.SelectedItem）; 
 txtDeputi.Text = cbi.Content.ToString（）; 
 
 
 
} 
} 
  

解决方案

当您绑定到ADO.NET你永远是数据绑定到DataView。每个DataRowView的包装在源数据表

您可以通过以下获得所选的DataRow一个DataRow：

  DataRowView的selectedDataRowView =（DataRowView的）ddDir.SelectedItem; 
的DataRow selectedRow = selectedDataRowView.Row; 
  

I want to get selected item in combobox wpf. But it returns System.Data.DataRowView. My code in xaml :

<ComboBox Name="ddDeputi" Margin="131,85,0,0" Width="327" HorizontalAlignment="Left" VerticalAlignment="Top" Height="22"
        SelectedValue="{Binding Path = kodeDep, ValidatesOnDataErrors=True, UpdateSourceTrigger=PropertyChanged}"
              Validation.ErrorTemplate="{x:Null}" SelectionChanged="ddDeputi_SelectionChanged" Loaded="ddDeputi_Loaded" />

And in my .cs :

   private void ddDeputi_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {

        if (ddDeputi.SelectedIndex != -1)
        {
            string akode = ddDeputi.SelectedValue.ToString();
            DaUnitKerja oDa = new DaUnitKerja();
            DataSet data = new DataSet();
            data = oDa.TampilDir(akode);
            ddDir.ItemsSource = data.Tables[0].DefaultView;
            ddDir.DisplayMemberPath = data.Tables[0].Columns["unit_kerja"].ToString();
            ddDir.SelectedValuePath = data.Tables[0].Columns["kode"].ToString();
            ddSubDir.SelectedIndex = -1;
            ComboBoxItem cbi = (ComboBoxItem)ddDeputi.ItemContainerGenerator.ContainerFromItem(ddDeputi.SelectedItem);
            txtDeputi.Text = cbi.Content.ToString();



        }
    }

解决方案

When you bind to ADO.NET you are always data-binding to a DataView. Each DataRowView wraps a DataRow in the source DataTable

You can get the selected DataRow via the following:

DataRowView selectedDataRowView = (DataRowView)ddDir.SelectedItem;
DataRow selectedRow = selectedDataRowView.Row;

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