DataGridView:如何使某些单元格不可选？
DataGridView:如何使某些单元格不可选？
提问于 2010-12-16 21:25:36
如何使DataGridView中的某些单元格不可选？
所谓“不可选”，我的意思是:它不能以任何方式被选中，试图选中它也不会取消选择任何其他单元格。
我不是说ReadOnly。我的单元格已经将此属性设置为true。
DataGridView.MultiSelect需要为false。
感谢JYL的回答，我写了一段代码：
private int selectedCellRow = 0;
private int selectedCellColumn = 0;
private void grid_CellStateChanged(object sender, DataGridViewCellStateChangedEventArgs e)
{
if (e.Cell == null || e.StateChanged != DataGridViewElementStates.Selected)
return;
if (e.Cell.RowIndex == 0 || e.Cell.ColumnIndex == 0 || e.Cell.RowIndex == 1 && e.Cell.ColumnIndex == 1)
{
e.Cell.Selected = false;
grid.Rows[selectedCellRow].Cells[selectedCellColumn].Selected = true;
}
else
{
selectedCellRow = e.Cell.RowIndex;
selectedCellColumn = e.Cell.ColumnIndex;
}
//this was only for seeing what is happening
//this.Text = selectedCellRow + " " + selectedCellColumn;
}但这导致了StackOverflow。我需要什么条件和位置来防止这种情况发生？
回答 3
Stack Overflow用户
回答已采纳
发布于 2010-12-16 22:31:55
添加并注释了您所询问的条件。
private int selectedCellRow = 0;
private int selectedCellColumn = 0;
private void grid_CellStateChanged(object sender, DataGridViewCellStateChangedEventArgs e)
{
if (e.Cell == null || e.StateChanged != DataGridViewElementStates.Selected)
return;
//if Cell that changed state is to be selected you don't need to process
//as event caused by 'unselectable' will select it again
if (e.Cell.RowIndex == selectedCellRow && e.Cell.ColumnIndex == selectedCellColumn)
return;
//this condition is necessary if you want to reset your DataGridView
if (!e.Cell.Selected)
return;
if (e.Cell.RowIndex == 0 || e.Cell.ColumnIndex == 0 || e.Cell.RowIndex == 1 && e.Cell.ColumnIndex == 1)
{
e.Cell.Selected = false;
grid.Rows[selectedCellRow].Cells[selectedCellColumn].Selected = true;
}
else
{
selectedCellRow = e.Cell.RowIndex;
selectedCellColumn = e.Cell.ColumnIndex;
}
}Stack Overflow用户
发布于 2010-12-16 21:32:56
可以使用事件"CellStateChanged“。
private void DataGridViewXYZ_CellStateChanged(object sender, DataGridViewCellStateChangedEventArgs e)
{
if (e.Cell == null
|| e.StateChanged != DataGridViewElementStates.Selected)
return;
if (! [condition here : can this cell be selectable ?])
e.Cell.Selected = false;
}编辑:如果您将gridView的MultiSelect属性保留为True，则可以管理包含不可选单元格的“单选”网格视图: il单元格可选，清除其他选择...
Stack Overflow用户
发布于 2010-12-16 21:36:04
我相信这篇文章可能会对你有用：
http://blog.spencen.com/2009/04/25/readonly-rows-and-cells-in-a-datagrid.aspx
ReadOnly属性可以应用于整个网格、列、行或单个单元格。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/4461181
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