Question

我一直在寻找一整天的感觉，但似乎无法解决这个问题所以我想我会问自己。

我有一个像这样构建的DataTable：

        Dim dtAttendanceTimes As New DataTable

        Dim dcEmployee As New DataColumn With {
            .ColumnName = "Employee",
            .DataType = GetType(String)}
        dtAttendanceTimes.Columns.Add(dcEmployee)

        Dim dcDate As New DataColumn With {
            .ColumnName = "Date",
            .DataType = GetType(String)}
        dtAttendanceTimes.Columns.Add(dcDate)

        Dim dcClockIn As New DataColumn With {
            .ColumnName = "Clock In",
            .DataType = GetType(String)}
        dtAttendanceTimes.Columns.Add(dcClockIn)

        Dim dcClockType As New DataColumn With {
            .ColumnName = "Type",
            .DataType = GetType(String)}
        dtAttendanceTimes.Columns.Add(dcClockType)

        Dim dcApproved As New DataColumn With {
            .ColumnName = "Approved",
            .DataType = GetType(String)}
        dtAttendanceTimes.Columns.Add(dcApproved)

        For Each drAttendaceTime As DataRow In AttendancetimesAdaptor.GetDataByEmployeeID(intEmployeeID).Rows
            dtAttendanceTimes.Rows.Add(drAttendaceTime("fkEmployee"), drAttendaceTime("strDate"), drAttendaceTime("strClockIn"), drAttendaceTime("strType"), drAttendaceTime("strApproved"))
        Next

        dgAttendanceTimes.ItemsSource = dtAttendanceTimes.DefaultView

在XAML中我构建了我的DataGrid，如下所示：

                        <DataGrid x:Name="dgAttendanceTimes" AutoGenerateColumns="False" Style="{StaticResource MyDataGridStyle}" Grid.Column="1" Grid.Row="1" Grid.RowSpan="3">
                    <DataGrid.Columns>
                            <DataGridTextColumn Header="Employee" x:Name="Employee" Width="*" Binding="{Binding Path=Employee}"/>
                            <DataGridTextColumn Header="Date" x:Name="Date" Width="*" Binding="{Binding Path=Date}"/>
                            <DataGridTextColumn Header="Clock In" x:Name="ClockIn" Binding="{Binding Path=ClockIn}"/>
                            <DataGridTextColumn Header="Type" x:Name="Type" Visibility="Hidden" Binding="{Binding Path=Type}"/>
                            <DataGridTextColumn Header="Approved" x:Name="Approved" Binding="{Binding Path=Approved}"/>
                        </DataGrid.Columns>
                </DataGrid>

然而，当我运行它时，我只得到空行，我得到的行数恰好是空白而没有列？

感谢任何帮助。

Answer 1

您可以在DataTable中添加列，如下所示：

 With dt.Columns
       .Add("SrNo", GetType(Integer))
       .Add("Name", GetType(String))
  End With

并在XAML中添加 ItemsSource="{Binding}"

现在在将行添加到数据表之前添加以下行：

    dg.ItemSource= dt.DefaultView()

现在向datatable添加行，它将自动反映到您的数据网格。

将DataTable绑定到DataGrid WPF（VB.net）

1 个答案: