我即將放棄。我一直在試圖將DataGridComboBoxColumn綁定到DataGrid的DataContext(一個DataSet),但我不能。代碼如下所示:DataGridComboBoxColumn綁定到DataGrid DataContext
用戶控件C#:
private static String strDBPath = EMS.Properties.Settings.Default.DBFile;
private static OleDbConnection myConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + strDBPath + ";Jet OLEDB:Engine Type=5");
private static string strProp = "SELECT * FROM tblProperties";
private static OleDbDataAdapter adapterProp = new OleDbDataAdapter(strProp, myConn);
private static DataSet dsProp = new DataSet();
public ObservableCollection<string> VarTypes { get; set; }
public UserControlPropertiesAccess() {
VarTypes = new ObservableCollection<string>() { "N", "Bool", "A2", "A4", "A8", "A20", "A50", "A100", "A200", };
InitializeComponent();
DatabaseHandling.CreateTable("tblProperties");
adapterProp.Fill(dsProp, "LoadDataBindingProp");
dgProperties.DataContext = dsProp;
}
在dsProp我有以下字段:PROPID,PROPNAME,PropVarType和PropUnit。我使用綁定來顯示在我的DataGrid的其他列中的最後三個字段,它都可以正常工作。當我嘗試使用DataGridComboBoxColumn時,它只是不綁定到DataContext。我只設法將我的ObservableCollection作爲我的組合框項目。
XAML:
private void btnSaveProperty_Click(object sender, RoutedEventArgs e)
{
myConn.Open();
adapterProp.Update(dsProp.Tables[0]);
myConn.Close();
}
所以我都希望是我DataGridComboBoxColumn綁定到我的數據集:
<DataGrid Name="dgProperties" Grid.Column="1" Grid.Row="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="LightCyan" Style="{StaticResource AzureDataGrid}" AutoGenerateColumns="False" CanUserAddRows="False" SelectionMode="Single" ItemsSource="{Binding Path=LoadDataBindingProp}" IsReadOnly="True" SelectionChanged="dgProperties_SelectionChanged">
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Path=PropName, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Header="Property" Width="150" />
<DataGridComboBoxColumn x:Name="dgcmbProperties" SelectedItemBinding="{Binding Path=PropName, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Header="Variable" Width="80" />
<DataGridTextColumn Binding="{Binding Path=PropUnit, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Header="Unit" Width="100" />
</DataGrid.Columns>
</DataGrid>
用戶完成編輯後,我將使用數據上傳到我的數據庫。此外,所選項目不顯示在DataGrid單元格中。
任何幫助將非常感激。