wpf 如何在wpf中编辑数据网格中的选择行

how to edit select row in datagrid in wpf

提问by Joy

i have a button column edit corresponding to each row in datagrid on click of that button i want to get correessponding row edit value how can we do that

单击该按钮时，我有一个对应于数据网格中每一行的按钮列编辑，我想获得相应的行编辑值，我们该怎么做

xaml code is :-

xaml 代码是：-

<Window x:Class="Wpf_grid.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="326" Width="946">
<Grid>
    <DataGrid Name="MyDataGrid" Uid="MyDataGrid" AutoGenerateColumns="False" AlternationCount="2" SelectionMode="Single" Margin="0,31,0,0" >
        <DataGrid.Columns>
            <DataGridTextColumn Binding="{Binding Path=RegId}" IsReadOnly="True" Header="Registration Id" Width="sizeToHeader"/>
            <DataGridTextColumn Binding="{Binding Path=Name}" Header="Name" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=FName}" Header="Father Name" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=ContactNumber}" Header="Contact Number" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=email}" Header="email" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=password}" Header="password" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=paddress}" Header="paddress" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=pcity}" Header="pcity" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=pstate}" Header="pstate" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=ppinCode}" Header="ppinCode" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=caddress}" Header="caddress" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=ccity}" Header="ccity" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=cstate}" Header="cstate" Width="sizeToHeader" />
            <DataGridTextColumn Binding="{Binding Path=cpinCode}" Header="cpinCode" Width="sizeToHeader" />
            <DataGridTemplateColumn Header="Edit Row">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Button Content="Edit" Click="btnEdit_Click"/>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
            <DataGridTemplateColumn Header="Delete Row">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Button Content="Delete" Click="btnDelete_Click"/>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
        </DataGrid.Columns>
    </DataGrid>

    <Button Content="LoadCustomer" Name="LoadCustomer" Height="23" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="0,5,0,0" Click="LoadCustomer_Click" />

</Grid>

and .cs code is :-

和 .cs 代码是：-

    private void btnEdit_Click(object sender, RoutedEventArgs e)
    {
        try
        {
            gridDataContext datacontext = new gridDataContext();
            registration registrationRow = MyDataGrid.SelectedValue as registration;
            int m = registrationRow.RegId;
            //registration Registration = (from p in datacontext.registrations where p.RegId == registrationRow.RegId select p).Single();
            registration Registration = datacontext.registrations.Where(A => A.RegId == m).Single();
            Registration.Name = registrationRow.Name;
            Registration.FName = registrationRow.FName;
            datacontext.SubmitChanges();
            MessageBox.Show("Row Updated Successfully");
            LoadCustomerDetail();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
            return;
        }
    }

anyone tell me how can i edit on button click ??

谁能告诉我如何在单击按钮时进行编辑？

回答by Amit Raz

1. Add Binding for SelectedItem property in the grid to your ViewModel
2. Add Binding for Command property of the Button to a Command in your ViewModel
3. In the ViewModel implement the Command.Executed method and use the Selected item propety to get the data.

1. 将网格中 SelectedItem 属性的绑定添加到您的 ViewModel
2. 将按钮的 Command 属性绑定添加到 ViewModel 中的命令
3. 在 ViewModel 中实现 Command.Executed 方法并使用 Selected 项属性来获取数据。

回答by Joy

finally I got solution... we can create an object which is store row data. now i can access each cell item like that

最后我得到了解决方案......我们可以创建一个存储行数据的对象。现在我可以像那样访问每个单元格项目

here is code:-

这是代码：-

 private void btnEdit_Click(object sender, RoutedEventArgs e)
    {
        try
        {
        object item = MyDataGrid.SelectedItem;
            gridDataContext datacontext = new gridDataContext();

            int m = int.Parse((MyDataGrid.SelectedCells[0].Column.GetCellContent(item) as TextBlock).Text);

            registration Registration = datacontext.registrations.Where(A => A.RegId == m).Single();
            Registration.Name = (MyDataGrid.SelectedCells[1].Column.GetCellContent(item) as TextBlock).Text;
            Registration.FName = (MyDataGrid.SelectedCells[2].Column.GetCellContent(item) as TextBlock).Text;
            datacontext.SubmitChanges();
            MessageBox.Show("Row Updated Successfully");
            LoadCustomerDetail();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
            return;
        }
    }