在WPF C＃DataGrid单元格单一的点击编辑模式？ [英] DataGrid cell single click edit mode in wpf c#?

问题描述

我的DataGrid在我的WPF应用程序。它有一些事件。我想编辑单一的点击数据网格单元。现在，当我加倍编辑单击该单元格。我曾尝试一些东西。但它不是为我工作。行和列是不恒定的。动态我会为Datagrid中创建列。
这是我的代码..

XAML中：

 < DataGrid的名称=dgTest的AutoGenerateColumns =真CanUserResizeColumns =FALSECanUserAddRows =FALSE
的ItemsSource ={结合NotifyOnSourceUpdated = TRUE}
的Horizo​​ntalAlignment =左
的SelectionMode =单
 SelectionUnit =单元格
 IsSynchronizedWithCurrentItem =真
 CellStyle ={StaticResource的DataGridBorder}
 CurrentCellChanged =dgTest_CurrentCellChanged
 CellEditEnding =dgTest_CellEditEnding
的GotFocus =dgTest_GotFocus引发LostFocus =dgTest_LostFocus
 GotKeyboardFocus =TextBoxGotKeyboardFocusLostKeyboardFocus =TextBoxLostKeyboardFocus
 AutoGeneratingColumn =dgTest_AutoGeneratingColumn/> 
  

我尝试添加一些代码为的GotFocus事件..但还是它不是为我工作。任何帮助将非常感激。

CS：

 私人无效dgTest_GotFocus（对象发件人，RoutedEventArgsê ）
 {
 //查询的源为DataGridCell 
如果（e.OriginalSource.GetType（）== typeof运算（DataGridCell））
 {
 //开始于该行的编辑; 
 DataGrid的GRD =（DataGrid中）发送; 
 grd.BeginEdit（E）; 
} 
 
} 
  

解决方案

试试这个：

勾上你的DataGrid中的PreviewMouseLeftButtonDown事件：

 < DataGrid.Resources> 
<风格的TargetType ={X：类型DataGridCell}> 
< EventSetter 
事件=的PreviewMouseLeftButtonDown
 Handeler =DataGridCell_PreviewMouseLeftButtonDown/> 
< /样式和GT; 
< /DataGrid.Resources> 
  

然后在后面的代码：

 私人无效DataGridCell_PreviewMouseLeftButtonDown（对象发件人，MouseButtonEventArgs E）
 {
 DataGridCell细胞=（DataGridCell）发送; 
如果（电池= NULL&放大器;！&安培;！cell.IsEditing和放大器;&安培;！cell.IsReadOnly）
 {
如果（！cell.IsFocused）
 {
 cell.Focus（）; 
} 
如果（grdData.SelectionUnit！= DataGridSelectionUnit.FullRow）
 {
如果（！cell.IsSelected）
 {
 cell.IsSelected = TRUE ; 
} 
} 
，否则
 {
 DataGridRow行= FindVisualParent< DataGridRow>（小区）; 
如果（行= NULL&放大器;！&安培;！row.IsSelected）
 {
 row.IsSelected = TRUE; 
} 
} 
 
} 
} 
静态牛逼FindVisualParent< T>（的UIElement元素），其中T：的UIElement 
 {
的UIElement父为元素; 
，而（父！= NULL）
 {$ B $（B T）= correctlyTyped父母为T; 
如果（correctlyTyped！= NULL）
 {
返回correctlyTyped; 
} 
父= VisualTreeHelper.GetParent（父）为的UIElement; 
} 
返回NULL; 
} 
  

i have DataGrid in my wpf application. its having some events. i want to edit the datagrid cell in single click. now its editing when i double click the cell. i have tried something. but its not working for me. The rows and columns are not constant. Dynamically i will create column for Datagrid. this is my code..

Xaml:

 <DataGrid Name="dgTest" AutoGenerateColumns="True" CanUserResizeColumns="False" CanUserAddRows="False"
                  ItemsSource="{Binding NotifyOnSourceUpdated=True}" 
                  HorizontalAlignment="Left" 
                  SelectionMode="Single"
                  SelectionUnit="Cell"
                  IsSynchronizedWithCurrentItem="True"
                  CellStyle="{StaticResource DataGridBorder}"
                  CurrentCellChanged="dgTest_CurrentCellChanged"
                  CellEditEnding="dgTest_CellEditEnding"   
                  GotFocus="dgTest_GotFocus" LostFocus="dgTest_LostFocus"
                  GotKeyboardFocus="TextBoxGotKeyboardFocus" LostKeyboardFocus="TextBoxLostKeyboardFocus"
                  AutoGeneratingColumn="dgTest_AutoGeneratingColumn"/>

i tried adding some code to the "GotFocus" event.. but still its not working for me. Any help would be really appreciated.

CS:

 private void dgTest_GotFocus(object sender, RoutedEventArgs e)
    {
        // Lookup for the source to be DataGridCell
        if (e.OriginalSource.GetType() == typeof(DataGridCell))
        {
            // Starts the Edit on the row;
            DataGrid grd = (DataGrid)sender;
            grd.BeginEdit(e);
        }

    }     

解决方案

Try this:

Hook up the PreviewMouseLeftButtonDown event on your DataGrid:

    <DataGrid.Resources>
        <Style TargetType="{x:Type DataGridCell}">
            <EventSetter
                Event="PreviewMouseLeftButtonDown"
                Handeler="DataGridCell_PreviewMouseLeftButtonDown"/>
        </Style>
    </DataGrid.Resources>

Then in the code behind:

    private void DataGridCell_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {
        DataGridCell cell = (DataGridCell) sender;
        if (cell != null && !cell.IsEditing && !cell.IsReadOnly)
        {
            if (!cell.IsFocused)
            {
                cell.Focus(); 
            }
            if (grdData.SelectionUnit != DataGridSelectionUnit.FullRow)
            {
                if (!cell.IsSelected)
                {
                    cell.IsSelected = true;
                }
            }
            else
            {
                DataGridRow row = FindVisualParent<DataGridRow>(cell);
                if (row != null && !row.IsSelected)
                {
                    row.IsSelected = true;
                }
            }

        }
    }
    static T FindVisualParent<T>(UIElement element) where T : UIElement
    {
        UIElement parent = element;
        while (parent != null)
        {
            T correctlyTyped = parent as T;
            if (correctlyTyped != null)
            {
                return correctlyTyped;
            }
            parent = VisualTreeHelper.GetParent(parent) as UIElement;
        }
        return null;
    } 

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