处理中的WinForms

Question

的FormClosed事件我有这个按钮的代码：

private void button22_Click_1(object sender, EventArgs e) 
    { 
     Separare sp = new Separare(dataGridView1,label_pin.Tag.ToString(),label_pin.Text); 
     sp.FormClosed += new FormClosedEventHandler(ClosedForm); 
     sp.Show(); 

    } 

的FormClosedEventHandler看起来是这样的：

DataTable bon_temp = bon_tempTableAdapter.GetDataByTable(label_pin.Tag.ToString()); 

     foreach (DataRow row in bon_temp.Rows) 
     { 
      AddRow(row.ItemArray[3].ToString(), Convert.ToInt32(row.ItemArray[4]), Convert.ToDecimal(row.ItemArray[5])); 
      Console.WriteLine(row.ItemArray[3].ToString(), Convert.ToInt32(row.ItemArray[4]), Convert.ToDecimal(row.ItemArray[5])); 
     } 

     bon_tempTableAdapter.DeleteQuery(label_pin.Tag.ToString()); 

其中AddRow方法添加行的DataGridView。我的问题是，当我关闭SP表格行不添加到DataGridView。每当用户关闭后形式已被关闭形式，并指定关闭原因发生

Answer 1

FormClosed。

的原因为您的代码不工作可能是在窗体上的某些控件已经被破坏......

我建议你使用FormClosing事件每当用户关闭窗体时发生，形式面前已关闭并指定关闭原因。

示例代码（这是非常相似，你在上面做了什么）：

this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.MyMainForm_FormClosing); 

... 

private void MyMainForm_FormClosing(object sender, FormClosingEventArgs e) 
{ 
    //your code goes here 
    //optionally, you can get or set e.Cancel which gets or sets a value indicating that the event should be cancelled; in this case the form won't close if you cancel it here 
    //or, you can check e.CloseReason which gets a value that indicates why the form is being closed (this is an enum Systems.Windows.Forms.CloseReason) 
}