var datagridview = new DataGridView();
var dataselect = datagridview.SelectedRows;
var label = new Label();
foreach (DataGridViewRow row in dataselect)
{
label.Text += row.Cells[1].Value + "\n";
}
追问我想实现的功能是选中几行之后,点击合并按钮,将选中的几行中je这一列的数字相加,然后用label3显示出来。
追答var datagridview = new DataGridView();
var dataselect = datagridview.SelectedRows;
var label = new Label();
var result = 0;
var column = 0; //列
foreach (DataGridViewRow row in dataselect)
{
result += int.Parse((string) (row.Cells[column]?.Value) ?? "0");
}
label.Text = result.ToString();
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