繼承DataGridView

代碼

 public partial class DataGridViewEx : DataGridView
    {
public delegate void ProcessEnterDeletegate();
private event ProcessEnterDeletegate ProcessEnterDeletegateHandler;

public DataGridViewEx()
        {
            InitializeComponent();
        }
//public DataGridViewEx(ProcessEnterDeletegate del)
//{
//    InitializeComponent();
//    ProcessEnterDeletegateHandler = del;
//}

public void SetHandler(ProcessEnterDeletegate del)
        {
            ProcessEnterDeletegateHandler = del;
        }

protected override bool ProcessDialogKey(Keys keyData)
        {
//是斷行符號鍵
            if (keyData == (System.Windows.Forms.Keys.LButton | System.Windows.Forms.Keys.MButton | System.Windows.Forms.Keys.Back))
            {
if (ProcessEnterDeletegateHandler != null) {                    
                    ProcessEnterDeletegateHandler();
                }
return true;
            }
return base.ProcessDialogKey(keyData);
        }

    }



/////////////// 調用頁面///////////////////////

public void SendKey()
        {
            SendKeys.Send("{TAB}");
        }

private void Form1_Load(object sender, EventArgs e)
        {
this.dataGridViewEx1.SetHandler(SendKey);   //綁定處理常式
            this.dataGridViewEx1.Focus();
this.f_sjzdTableAdapter.Fill(this.fSZJCM0420DataSet.F_sjzd);
        }

 

 

//msdn的例子

 

 

代碼

public class CustomDataGridView : DataGridView
{
    [System.Security.Permissions.UIPermission(
        System.Security.Permissions.SecurityAction.LinkDemand,
        Window = System.Security.Permissions.UIPermissionWindow.AllWindows)]
protected override bool ProcessDialogKey(Keys keyData)
    {
// Extract the key code from the key value. 
        Keys key = (keyData & Keys.KeyCode);

// Handle the ENTER key as if it were a RIGHT ARROW key. 
        if (key == Keys.Enter)
        {
return this.ProcessRightKey(keyData);
        }
return base.ProcessDialogKey(keyData);
    }

    [System.Security.Permissions.SecurityPermission(
        System.Security.Permissions.SecurityAction.LinkDemand, Flags = 
        System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)]
protected override bool ProcessDataGridViewKey(KeyEventArgs e)
    {
// Handle the ENTER key as if it were a RIGHT ARROW key. 
        if (e.KeyCode == Keys.Enter)
        {
return this.ProcessRightKey(e.KeyData);
        }
return base.ProcessDataGridViewKey(e);
    }