c# - 如何从按钮调用 Datagridview 单元格双击事件？

Question

我正在尝试从另一个按钮调用 datagridview 单元格事件方法。

DataGridView单元格双击方法

private void ListDataGridView_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex >= 0)
            {
                ListDataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
                DataGridViewRow row = this.ListDataGridView.Rows[e.RowIndex];

                comboBox2.Text = row.Cells[1].Value.ToString();

            }
        }

这是我调用此方法的按钮

private void button6_Click(object sender, EventArgs e)
{
  ListDataGridView_CellDoubleClick(sender, e);
}

我收到错误

Error 3 The type or namespace name 'DataGridViewCellEventHandler' does not exist in the namespace 'System' (are you missing an assembly reference?) C:\VisualC#\Projects\DataGridViewApplication\DataGridViewApplication\List.Designer.cs 340 46 DataGridViewApplication

我做了什么:

我将 EventArgs 更改为 DataGridViewCellEventArgs。

private void button6_Click(object sender, DataGridViewCellEventArgs e)
   {    
     ListDataGridView_CellDoubleClick(sender, e);
   }

现在我收到错误:

this.button6.Click += new System.EventHandler(this.button6_Click);

Error 3 No overload for 'button6_Click' matches delegate 'System.EventHandler'

C:\VisualC#\Projects\DataGridViewApplication\DataGridViewApplication\List.Designer.cs 340 35 DataGridViewApplication

现在我将按钮事件处理程序代码更改为此

this.button6.Click += new System.DataGridViewCellEventHandler(this.button6_Click);

仍然收到此错误并卡在此处

Error 3 No overload for 'button6_Click' matches delegate 'System.EventHandler'

在这里找到解决方案: How to call a datagridview event with a click of a button?

private void button6_Click(object sender, EventArgs e)
        {
            ListDataGridView_CellDoubleClick(null, null);  
        }

但这对我不起作用，它给我一个错误。

Object Reference not set to an instance of an object.

Answer 1

    private void button6_Click(object sender, EventArgs e)
    {

        ListDataGridView_CellDoubleClick(this.ListDataGridView, new DataGridViewCellEventArgs(this.ListDataGridView.CurrentCell.ColumnIndex,this.ListDataGridView.CurrentRow.Index));

    }