[英]Datagrid column IsReadOnly property not working in Silverlight 4?
I'm currently working on a DataGrid which in some conditions should disable or enable particular columns by changing IsReadOnly
to true and vice versa. 我目前正在研究一个DataGrid,在某些情况下应通过将IsReadOnly
更改为true来禁用或启用特定的列,反之亦然。 I attached to CurrentCellChanged
and CellEditEnded
events in which I change the column IsReadOnly
property. 我附加到CurrentCellChanged
和CellEditEnded
事件,在其中更改列IsReadOnly
属性。 I expect the application to disable / enable edit on that column. 我希望应用程序在该列上禁用/启用编辑。 Even though the column has IsReadOnly
set to true sometimes it does allow edits. 即使该列的IsReadOnly
设置为true,有时它也允许编辑。 I've also tried to call CancelEdit();
我也尝试调用CancelEdit();
on a grid but that didn't make any effect either. 在网格上,但也没有任何效果。 If you request I can post code but I'm pretty sure the logic is fine, I checked it like thousands of times in debug ;). 如果您要求我可以发布代码,但是我很确定逻辑很好,那么我在调试中检查了它数千次;)。 The entire idea is nothing more than changing IsReadOnly of particular column in event. 整个想法无非就是更改事件中特定列的IsReadOnly。 Any idea what why it's not working as I expect? 知道为什么它无法按我预期的那样工作吗?
Edit1. 编辑1。 Code added. 代码已添加。
private void SrfDataGrid_CurrentCellChanged(object sender, EventArgs e)
{
CellCoordinates cellCoordinates = this.GetEditedCellCoordinates();
if (!this.LockDataGridCell(cellCoordinates))
{
if (!Keyboard.Modifiers.HasFlag(ModifierKeys.Control) && !Keyboard.Modifiers.HasFlag(ModifierKeys.Shift))
this.srfDataGrid.BeginEdit();
}
else
{
this.srfDataGrid.CancelEdit();
}
}
private void SrfDataGrid_CellEditEnded(object sender, DataGridCellEditEndedEventArgs e)
{
CellCoordinates cellCoordinates = this.GetEditedCellCoordinates();
this.SetCellsRowInfluence(cellCoordinates);
this.UnlockDataGridCell(cellCoordinates);
}
public bool LockDataGridCell(CellCoordinates cellCoordinates)
{
bool result = false;
if (cellCoordinates != null)
{
DataGridColumn currentColumn = this.srfDataGrid.CurrentColumn;
if (this.spreadSheetCellState[cellCoordinates.ColumnName, cellCoordinates.RowID].Equals(CurrentCellState.WRITE))
{
currentColumn.IsReadOnly = false;
}
else
{
currentColumn.IsReadOnly = true;
}
result = currentColumn.IsReadOnly;
}
return result;
}
public void UnlockDataGridCell(CellCoordinates cellCoordinates)
{
if (cellCoordinates != null)
{
DataGridColumn currentColumn = this.srfDataGrid.CurrentColumn;
if (this.spreadSheetCellState[cellCoordinates.ColumnName, cellCoordinates.RowID].Equals(CurrentCellState.ALWAYS_READ_ONLY))
{
currentColumn.IsReadOnly = true;
}
else
{
currentColumn.IsReadOnly = false;
}
}
}
Try this: 尝试这个:
foreach (DataGridColumn col in dataGrid1.Columns)
{
if (col.GetType() == typeof(DataGridTextColumn))
{
col.IsReadOnly = true;
}
else
{
col.IsReadOnly = false;
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.