datagridview单元格单击事件 [英] datagridview cell click event
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问题描述
我在datagrid视图中有一个单元格单击事件,以在消息框中显示单击的单元格中的数据。我将其设置为仅对特定列有效,并且仅当单元格中有数据时才可用
I have an event for a cell click in a datagrid view to display the data in the clicked cell in a message box. I have it set to where it only works for a certain column and only if there is data in the cell
private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (dataGridView1.CurrentCell.ColumnIndex.Equals(3))
if (dataGridView1.CurrentCell != null && dataGridView1.CurrentCell.Value != null)
MessageBox.Show(dataGridView1.CurrentCell.Value.ToString());
}
但是,每当我单击任何列标题时,都会显示一个空白消息框。我不知道为什么,有任何提示吗?
however, whenever i click any of the column headers, a blank messagebox shows up. I cant figure out why, any tips?
推荐答案
您还需要检查单击的单元格不是列标题单元格。像这样:
You will also need to check the cell clicked is not the column header cell. Like this:
private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (dataGridView1.CurrentCell.ColumnIndex.Equals(3) && e.RowIndex != -1){
if (dataGridView1.CurrentCell != null && dataGridView1.CurrentCell.Value != null)
MessageBox.Show(dataGridView1.CurrentCell.Value.ToString());
}
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