把多個項目的組合框從SQL Server（SSMS）

Question

<Window x:Class="Kvik_Support.KonsulentValg" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     Title="KonsulentValg" Height="150" Width="250" 
     Background="LightGray" ResizeMode="NoResize"> 
    <Grid> 
     <Grid.ColumnDefinitions> 
      <ColumnDefinition Width="10" /> 
      <ColumnDefinition Width="10*" /> 
      <ColumnDefinition Width="10" /> 
      </Grid.ColumnDefinitions> 
     <Grid.RowDefinitions> 
      <RowDefinition Height="10" /> 
      <RowDefinition Height="10*" /> 
      <RowDefinition Height="10*" /> 
      <RowDefinition Height="10*" /> 
      <RowDefinition Height="10" /> 
     </Grid.RowDefinitions> 
     <Label Content="Hvem er du?" Grid.Column="1" Grid.Row="1" HorizontalAlignment="Center" VerticalAlignment="Bottom"/> 
     <ComboBox Grid.Column="1" Grid.Row="2" Height="25" Name="cmbHvemErDu"> 

     </ComboBox> 
     <Button Grid.Column="1" Grid.Row="3" Height="25" Width="100" Content="OK" Click="Button_Click" /> 
    </Grid> 
</Window> 

這是我的窗口XAML代碼，我試圖填補從數據庫項目的組合框...

我想到的是，我可以在項目填寫下面的代碼，但是，使一個XAML解析異常......

public partial class KonsulentValg : Window 
    { 
     public KonsulentValg() 
     { 
      InitializeComponent(); 
      try 
      { 
       SqlConnection lager = new SqlConnection("Data Source=local\\SERVER;Initial Catalog=Kvik-Support;Integrated Security=True"); 
       lager.Open(); 
       SqlCommand thisCommand = lager.CreateCommand(); 
       string command = "SELECT ID, navn FROM Konsulent"; 
       SqlDataAdapter da = new SqlDataAdapter(command, lager); 
       SqlDataReader thisReader = thisCommand.ExecuteReader(); 
       DataTable datatable = new DataTable(); 
       da.Fill(datatable); 
       foreach (DataRow row in datatable.Rows) 
       { 
        string rows = string.Format("{0}:{1}", row.ItemArray[0], row.ItemArray[1]); 
        cmbHvemErDu.Items.Add(rows); 
       } 
       Console.ReadKey(); 
       thisReader.Close(); 
       lager.Close(); 
      } 
      catch (SqlException ex) 
      { 
       MessageBox.Show(ex.Message); 
      } 
     } 

     private void Button_Click(object sender, RoutedEventArgs e) 
     { 
      Close(); 
     } 
    } 
} 

，但它沒有可能工作...

Answer 1

你應該考慮使用綁定itemssource而不是將項目添加到組合框。

this.cmdHvemErDu.ItemsSource = datatable; 

或XAML

<ComboBox ItemsSource="{Binding YourDataTableProperty}"/> 

不要忘記設置您的組合框

編輯的DisplayMemeberPath屬性：如果你想在你的組合框，你可以使用表現出更多的則一列值ItemTemplate中。

<ComboBox ItemsSource="{Binding YourDataTablePropertyHere}" > 
     <ComboBox.ItemTemplate> 
      <DataTemplate> 
        <StackPanel Orientation="Horizontal"> 
         <TextBlock Text="{Binding ColumnName1}" /> 
         <TextBlock Text="{Binding ColumnName2}" /> 
        </StackPanel> 
      </DataTemplate> 
     </ComboBox.ItemTemplate> 
    </ComboBox>