如何在c#中将选定的行从一个datagridview移动到另一个datagridview?

时间:2018-06-07 05:42:27

标签: c# datagridview

我尝试使用此代码将所选行从datagridview2移动到datagridview1.But当我单击添加按钮以从datagridview2移动所选行时。并且它还添加到datagridview 2.但是通过异常发生错误,即“对象引用未设置为对象的实例”。如何解决此问题。我的代码如下

 private void button1_Click(object sender, EventArgs e)
    {

        try
        {
            this.dataGridView1.Rows.Clear();
            foreach (DataGridViewRow row in dataGridView2.Rows)
            {
                int n = dataGridView1.Rows.Add();
                bool checkedCell = (bool)dataGridView2.Rows[n].Cells[0].Value;
                if (checkedCell == true)
                {
                    dataGridView1.Rows[n].Cells[0].Value = row.Cells[1].Value;
                    dataGridView1.Rows[n].Cells[1].Value = row.Cells[2].Value;
                    dataGridView1.Rows[n].Cells[3].Value = row.Cells[3].Value;
                }

            }

        }
        catch (Exception ex)
        {
            MessageBox.Show(" Error " + ex.Message);
        }
    }

我需要这样做。但是点击加载按钮会加载数据 enter image description here

1 个答案:

答案 0 :(得分:0)

在datagridview2中添加行时,必须将boolean column的值设置为:

  dataGridView2.Rows.Add("1", "2", "3", false);

其他解决办法:

      this.dataGridView1.Rows.Clear();
        foreach (DataGridViewRow row in dataGridView2.SelectedRows.Cast<DataGridViewRow>().ToList())
        {
            this.dataGridView1.Rows.Add(row.Cells[0].Value, row.Cells[1].Value, row.Cells[2].Value);
        }