Question

我看到了一些与我的问题相关的答案。我被尝试了答案，但我仍然无法解决这个问题。

private void btn_View_Click(object sender, RoutedEventArgs e)
{
  try
  {
    DataTable objDataTable = this.FillDepartment();
    this.dataGrid1.ItemsSource = objDataTable.DefaultView;
  }
  catch (Exception ex)
  {
    MessageBox.Show(ex.Message);
  }
}

private DataTable FillDepartment()
{
  try
  {
    Departments objDepartments = new DepartmentServices().GetAllDept();
    DataTable objDataTable = new DataTable();

    objDataTable.Columns.Add("Department No");
    objDataTable.Columns.Add("Department Name");
    objDataTable.Columns.Add("Location");

    foreach (Department department in objDepartments)
    {
      DataRow objDataRow = objDataTable.NewRow();

      objDataRow[0] = department.DepNo;
      objDataRow[1] = department.Name;
      objDataRow[2] = department.Loc;

      objDataTable.Rows.Add(objDataRow);
    }

    return objDataTable;
  }
  catch (Exception)
  {

    throw;
  }
}

使用断点并浏览代码我看到objDataTable对象返回带有插入数据库的值的对象。但我无法将此行添加到DataGrid。希望你们能帮我解决这个问题。

Answer 1

我会为您的问题建议以下解决方案。

使用DefaultView，因为DataTable不实现IEnumerable并绑定它。

public static readonly DependencyProperty ObjDataTableDefaultViewProperty =
  DependencyProperty.Register("ObjDataTableDefaultView", typeof(System.Data.DataView), typeof(Window2), new FrameworkPropertyMetadata());

public System.Data.DataView ObjDataTableDefaultView {
  get { return (System.Data.DataView)GetValue(ObjDataTableDefaultViewProperty); }
  set { SetValue(ObjDataTableDefaultViewProperty, value); }
}

private void CreateObjDataTable()
{
  try
  {
    ObjDataTableDefaultView = this.FillDepartment().DefaultView;
  }
  catch (Exception ex)
  {
    MessageBox.Show(ex.Message);
  }
}

xaml代码

<Window x:Class="Spielwiese.Window2"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Spielwiese" Height="300" Width="300"
        x:Name="uc">
<Grid>
  <DataGrid x:Name="dataGrid1"
            AutoGenerateColumns="True"
            ItemsSource="{Binding ObjDataTableDefaultView, ElementName=uc, Mode=OneWay}"/>
</Grid>
</Window>

希望这会有所帮助

在WPF中将DataTable添加到DataGrid

1 个答案: