C# 如何在dataGrid1_BeginningEdit事件上获取datagrid单元格的值?
我试图在使用dataGrid1_BeginingEdit事件停止事件时检查datagrid单元格的值是否为null 代码如下,我可以在执行“dataGrid2_CellEditEnding(对象发送者,DataGridCellEditEndingEventArgs e)”时使用“((TextBox)e.EditingElement).Text”,但不能用于以下内容C# 如何在dataGrid1_BeginningEdit事件上获取datagrid单元格的值?,c#,wpf,datagrid,C#,Wpf,Datagrid,我试图在使用dataGrid1_BeginingEdit事件停止事件时检查datagrid单元格的值是否为null 代码如下,我可以在执行“dataGrid2_CellEditEnding(对象发送者,DataGridCellEditEndingEventArgs e)”时使用“((TextBox)e.EditingElement).Text”,但不能用于以下内容 private void dataGrid2_BeginningEdit(object sender, DataGridBe
private void dataGrid2_BeginningEdit(object sender, DataGridBeginningEditEventArgs e)
{
int column = dataGrid2.CurrentCell.Column.DisplayIndex;
int row = dataGrid2.SelectedIndex;
if (((TextBox)e.EditingElement).Text == null)
return;
非常感谢试试这个-
private void dataGrid2_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if (dataGrid2[e.ColumnIndex, e.RowIndex].Value == null)
{}
}
(e.EditingEventArgs.Source as TextBlock).Text
我想这会帮助你
private void DataGrid_BeginningEdit(
object sender,
Microsoft.Windows.Controls.DataGridBeginningEditEventArgs e)
{
e.Cancel = GetCellValue(((DataGrid) sender).CurrentCell) == null;
}
private static object GetCellValue(DataGridCellInfo cell)
{
var boundItem = cell.Item;
var binding = new Binding();
if (cell.Column is DataGridTextColumn)
{
binding
= ((DataGridTextColumn)cell.Column).Binding
as Binding;
}
else if (cell.Column is DataGridCheckBoxColumn)
{
binding
= ((DataGridCheckBoxColumn)cell.Column).Binding
as Binding;
}
else if (cell.Column is DataGridComboBoxColumn)
{
binding
= ((DataGridComboBoxColumn)cell.Column).SelectedValueBinding
as Binding;
if (binding == null)
{
binding
= ((DataGridComboBoxColumn)cell.Column).SelectedItemBinding
as Binding;
}
}
if (binding != null)
{
var propertyName = binding.Path.Path;
var propInfo = boundItem.GetType().GetProperty(propertyName);
return propInfo.GetValue(boundItem, new object[] {});
}
return null;
}
如果查看,它们包含一个属性
列
和行
,可用于从数据网格中选择单元格。我发现了一种不同的方法:
ContentPresenter cp = (ContentPresenter)e.Column.GetCellContent(e.Row);
YourDataType item = (YourDataType)cp.DataContext;
这比其他一些有效答案简单得多:
private void DataGrid_BeginningEdit(object sender, DataGridBeginningEditEventArgs e)
{
string content = (e.EditingEventArgs.Source as TextBlock).Text;
if (String.IsNullOrEmpty(content))
e.Cancel = true;
}
很抱歉,这是我的Datagrid,不是Datagrid视图。你知道如何为Datagrid执行此操作吗?你的列类型是什么?DataGridTextColumn还是其他?如果你使用上面的coed,你面临什么问题?对我来说,
EditingEventArgs.Source
似乎总是null
。@RohitVats你有时间提出建议/评论吗此@wpf it--找不到Datagrid的CurrentCell属性。我不知道您为什么找不到它,但您也可以使用DataGridBeginingEditeEventArgs e对象。它有e.Column和e.Row.DataContext属性,这对您有利。在GetCellValue()调用中,boundItem现在将是e.Row.DataContext,cell.Column将是e.Column。
private void DataGrid_BeginningEdit(object sender, DataGridBeginningEditEventArgs e)
{
string content = (e.EditingEventArgs.Source as TextBlock).Text;
if (String.IsNullOrEmpty(content))
e.Cancel = true;
}