wpf datagrid 行双击事件

 

https://docs.devexpress.com/WPF/7875/index

Xaml：

<DataGrid ItemsSource="{Binding SessionList}"
Grid.Row="2"
Grid.Column="0"
Grid.ColumnSpan="2"
AutoGenerateColumns="False"
ScrollViewer.CanContentScroll="False"
IsReadOnly="True"
HorizontalScrollBarVisibility="Auto"
SelectionMode="Single"
VerticalScrollBarVisibility="Auto"
MouseDoubleClick="datagrid_MouseDoubleClick" 
CanUserAddRows="True"/>

cs代码：

private void datagrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
　　DataGrid datagrid = sender as DataGrid;
　　Point aP = e.GetPosition(datagrid);
　　IInputElement obj = datagrid.InputHitTest(aP);
　　DependencyObject target = obj as DependencyObject;

　　while (target != null)
　　{
　　　　if (target is DataGridRow)
　　　　{
　　　　　　break;
　　　　}
　　　　target = VisualTreeHelper.GetParent(target);
　　}
}

<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseDoubleClick" >
<i:InvokeCommandAction Command="{Binding DataGridEditCommand}" CommandParameter="{ Binding ElementName=dataGrid1, Path=SelectedItem}" />
</i:EventTrigger>
</i:Interaction.Triggers>

// 获取点击行的数据
  

DataGrid datagrid = sender as DataGrid;
Bom row = datagrid.SelectedItem as Bom;

WPF DataGrid使用简介

 

1）自动生成列

 

<DataGrid AutoGenerateColumns="True" Name="datagrid" CanUserAddRows="False" MouseDoubleClick="datagrid_MouseDoubleClick" />

 

2）取消自动生成列，手动绑定到相应字段

 

<DataGrid AutoGenerateColumns="False" Name="datagrid" CanUserAddRows="False" MouseDoubleClick="datagrid_MouseDoubleClick">

<DataGrid.Columns>

<DataGridTextColumn Header="编号" Binding="{Binding ID}"></DataGridTextColumn>

<DataGridTextColumn Header="公司" Binding="{Binding CompanyName}"></DataGridTextColumn>

<DataGridTextColumn Header="固定资产" Binding="{Binding FixedAssets}" Width ="*"></DataGridTextColumn>

</DataGrid.Columns>

</DataGrid>

 

最后一列设置Width ="*"是为了取消空白列。

 

（3）后台代码

 

private void Window_Loaded(object sender, RoutedEventArgs e)

{

datagrid.ItemsSource = AccessDAL.OleDbHelper.ExecuteDataTable("SELECT * from Customers").DefaultView;

}

 

//双击DataGrid，显示相应信息

 

private void datagrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)

{

DataRowView row = datagrid.SelectedItem as DataRowView;

MessageBox.Show(row["id"].ToString());

}

 

//如果绑定到对象集合，如ObservableCollection<Employee>，代码如下：

 

ObservableCollection<Employee> col;

public EmployeeManage()

{

InitializeComponent();

col = new ObservableCollection<Employee>();

col.Add(new Employee() { Id = 1, Name = "Jim", Salary = 2500.50f });

col.Add(new Employee() { Id = 2, Name = "John", Salary = 2600.50f });

datagrid.ItemsSource = col;

}

 

private void datagrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)

{

Employee emp=datagrid.SelectedItem as Employee;

MessageBox.Show(emp.Id.ToString());

}

 

（4）删除选中的多行数据

 

private void Delete_Click(object sender, RoutedEventArgs e)

{

for (int i = datagrid.SelectedItems.Count - 1; i >= 0; i--)

{

Good good = datagrid.SelectedItems[i] as Good;

goods.Remove(good);

}

}