Question

在我的应用程序中，我有一个包含很多行的datagridview，很多用户会定期更新它。我想为它添加一个上下文菜单，使用户可以右键单击并从上下文菜单中选择编辑，然后它应该打开第二个包含所有选定行值的表单。

我使用以下代码

private void toolStripMenuItem2_Click(object sender, EventArgs e)
{                
    foreach (DataGridViewCell oneCell in dataGridView1.SelectedCells)
    {

        if (oneCell.Selected)
        {

            int editloannumber = int.Parse(dataGridView1.Rows[oneCell.RowIndex].Cells[0].Value.ToString());
            int editlid = int.Parse(dataGridView1.Rows[oneCell.RowIndex].Cells[8].Value.ToString());
            string editloantype = dataGridView1.Rows[oneCell.RowIndex].Cells[1].Value.ToString();
            string editneworsecond = dataGridView1.Rows[oneCell.RowIndex].Cells[2].Value.ToString();
            string editpurpose = dataGridView1.Rows[oneCell.RowIndex].Cells[11].Value.ToString();
            string editstatus = dataGridView1.Rows[oneCell.RowIndex].Cells[3].Value.ToString();
            string editcomments = dataGridView1.Rows[oneCell.RowIndex].Cells[7].Value.ToString();
            string editretail = dataGridView1.Rows[oneCell.RowIndex].Cells[12].Value.ToString();


            wartif_UW.editform e2 = new wartif_UW.editform(editloannumber, editloantype, editneworsecond, editpurpose, editstatus, editcomments, editretail,editlid);
             e2.ShowDialog();
         }
     }
}

我将datagridview选择模式设置为fullrowselect，当我运行代码时，它加载我的第二个表单，但不仅仅是因为for循环而多次循环回来。我怎么能阻止这个？

当我将datagridview选择模式设置为cellselect时，它工作得很好。但我想选择所有行

编写点击功能我使用以下代码

private void dataGridView1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                var hti = dataGridView1.HitTest(e.X, e.Y);
                if (hti.RowIndex >= 0)
                {
                    dataGridView1.ClearSelection();
                    dataGridView1.CurrentCell =dataGridView1[hti.ColumnIndex,hti.RowIndex];
                }
            }
        }

Answer 1

让我们来看看你的for-loop 如果您有完整的行选择模式，那么您的单元格将始终被选中所以if语句真的没有做任何事情此外，所选单元格的RowIndex将始终相同那么为什么不用for-loop代替这样的东西：

if(dataGridView1.SelectedCells.Count > 0)
{
    var oneCell = dataGridView1[0];
    int editloannumber = int.Parse(dataGridView1.Rows[oneCell.RowIndex].Cells[0].Value.ToString());
    int editlid = int.Parse(dataGridView1.Rows[oneCell.RowIndex].Cells[8].Value.ToString());
    string editloantype = dataGridView1.Rows[oneCell.RowIndex].Cells[1].Value.ToString();
    string editneworsecond = dataGridView1.Rows[oneCell.RowIndex].Cells[2].Value.ToString();
    string editpurpose = dataGridView1.Rows[oneCell.RowIndex].Cells[11].Value.ToString();
    string editstatus = dataGridView1.Rows[oneCell.RowIndex].Cells[3].Value.ToString();
    string editcomments = dataGridView1.Rows[oneCell.RowIndex].Cells[7].Value.ToString();
    string editretail = dataGridView1.Rows[oneCell.RowIndex].Cells[12].Value.ToString();

    wartif_UW.editform e2 = new wartif_UW.editform(editloannumber, editloantype, editneworsecond, editpurpose, editstatus, editcomments, editretail,editlid);
    e2.ShowDialog();
 }

使用上下文菜单将所有datagridview选定的行值传递给第二个表单

1 个答案: