Question

我有一个DataGridView，其中显示了来自MS Access数据库的播放内容，此刻，我正试图了解如何分配每个按钮以执行不同的操作，例如显示新的表格或消息框。 / p>

此代码

    private void btnShowPlays_Click(object sender, EventArgs e)
    {

        OleDbConnection myConnection = GetConnection();

        try
        {               
            myConnection.Open();
            OleDbCommand command = new OleDbCommand();
            command.Connection = myConnection;
            string query = "select * from plays";
            command.CommandText = query; 


            OleDbDataAdapter da = new OleDbDataAdapter(command);
            DataTable dt = new DataTable();
            da.Fill(dt);
            dataGridView.DataSource = dt;

            DataGridViewButtonColumn btn = new DataGridViewButtonColumn();
            dataGridView.Columns.Add(btn);
            btn.HeaderText = "Options";
            btn.Name = "More Info";
            btn.Text = "More Info";
            btn.UseColumnTextForButtonValue = true;

            myConnection.Close();


        }
        catch (Exception ex)
        {
            MessageBox.Show("Exception in DBHandler" + ex);
        }

    }

我尝试过

     private void dataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
    {
        if (e.ColumnIndex==2)
        {
            MessageBox.Show((e.RowIndex+1).ToString() +" Information");
        }
    }

我认为这是有问题的，但是我想做的是让每一行上的每个按钮显示不同的表单或消息框。

Answer 1

我认为可以通过以下方式解决您的问题：

private void dataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
    var gridView = (DataGridView)sender;

    if (gridView.Columns[e.ColumnIndex] is DataGridViewButtonColumn &&
        e.RowIndex >= 0)
    {
        //TODO: Button was clicked. Check the index of the row and do you specialized work for different rows.
    }
}

这是事件的代码，您必须将其绑定到数据网格，并使用rowIndex编写switch / if，以使每个按钮具有不同的功能。

希望有帮助！

在阅读了有关原始问题的其他注释和版本后添加的内容：

private void dataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
    var gridView = (DataGridView)sender;

    if (gridView.Columns[e.ColumnIndex] is DataGridViewButtonColumn &&
        e.RowIndex >= 0)
    {
        string typeOfRow = gridView.Rows[e.RowIndex].Cells[2 /*Column that defines the type of action to take*/].ToString();
        if (typeOfRow == "ShowMessage")
        {
            // Here i just copied the logic you added, dont know if it makes sense. 
            MessageBox.Show((e.RowIndex + 1).ToString() + " Information");

            //I would assume you want to do this instead:
            MessageBox.Show((gridView.Rows[e.RowIndex].Cells[3/*number of column with data to show*/]).ToString() + " Information");
        }
    }
}

分配DataGridView中的每个按钮以打开不同的窗体

1 个答案: