获取WPF数据网格中的选定项目 [英] Get Selected items in a WPF datagrid

问题描述

大家好，



在我的WPF应用程序中，我需要在点击数据网格外部的按钮时获取数据网格的所有选定行。我在行标题模板中使用复选框来选择或取消选择行。下面是我的datagrid xaml的小代码片段。请点击按钮，任何人都可以帮助我获取所有选定的行。我在谷歌上搜索了很多，但是所有的链接都是关于dataGrid_SelectionChanged事件中的选定项目，这很容易。

Hi all,

In my WPF application, I need to get all the selected rows of a datagrid on the click of a button which is outside the datagrid.I am using a checkbox in the row header template to select or deselect a row. Below is the small code snippet of my datagrid xaml. Please can any one help me out in fetching all the selected rows on the click of a button. I have searched a lot on google, but all the links are regarding fethcing selected items on "dataGrid_SelectionChanged" event, which is very easy.

<my:DataGrid AutoGenerateColumns="False" SelectionChanged="dataGrid_SelectionChanged" Initialized="DataGrid_Initialized" >

<my:DataGrid.RowHeaderTemplate>
                <DataTemplate>
                    <Grid>
                        <CheckBox IsChecked="{Binding Path=IsSelected, Mode=TwoWay, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type my:DataGridRow}}}"/>
                    </Grid>
                </DataTemplate>
            </my:DataGrid.RowHeaderTemplate>
 <my:DataGrid.Columns>
     <my:DataGridTemplateColumn Width="160" Header="Media Status" >
                    <my:DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                         <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Margin="5,8,5,0">
                                <TextBlock>
                             <TextBlock.Style>
                                <Style>
                                    <Style.Triggers>
                                        <DataTrigger Binding="{Binding MediaStatus}"  Value="False">
                                            <Setter Property="TextBlock.Text" Value="Not Processed" />
                                        </DataTrigger>
                                        <DataTrigger Binding="{Binding MediaStatus}" Value="True">
                                            <Setter Property="TextBlock.Text" Value="Processed" />
                                        </DataTrigger>
                                    </Style.Triggers>
                                </Style>
                            </TextBlock.Style>
                               </TextBlock>
                            </StackPanel>
                                                          
                        </DataTemplate>
                    </my:DataGridTemplateColumn.CellTemplate>
                </my:DataGridTemplateColumn>
            </my:DataGrid.Columns>
        </my:DataGrid>

谢谢

Anurag

Thanks
Anurag

推荐答案

感谢所有正在阅读的人这个帖子。我自己做的。我发布下面的代码，供其他需要它的人参考。请建议是否可以对其进行任何修改。

Thanks everyone who are reading this post. I did it myself. I am posting the code below, for reference of others who need it. Please suggest if any good modification can be made to it.

private void btnProcessMedia_Click(object sender, RoutedEventArgs e)
        {
                if (dgProjects.SelectedItems.Count > 0)
                {
                    for (int i = 0; i < dgProjects.SelectedItems.Count; i++)
                    {
                        System.Data.DataRowView selectedFile = (System.Data.DataRowView)dgProjects.SelectedItems[i];
                        string str = Convert.ToString(selectedFile.Row.ItemArray[10]);
                    }
                }
            
        }

Anurag

Anurag

更好的方法：

A better way:

foreach (var data in dataGridMain.SelectedItems)
{
    MyObservableCollection myData = data as MyObservableCollection;
    MessageBox.Show(myData.author);
}

其中MyObservableCollection是绑定到DataGrid的数据类（在本例中为dataGridMain）。例如，这个集合有一个作者字符串。

Where "MyObservableCollection" is your data class that is bound to the DataGrid (in this case dataGridMain). And this collection has an author string for example.

请阅读此链接。

DataGrid中的MultiItemSelect行为 [ ^ ]

Please read this link.
MultiItemSelect Behaviour in DataGrid [^]

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