ObjectDisposedException已处理 [英] ObjectDisposedException was Handled

问题描述

无法访问已处置的对象.
对象名称:"frmBill".

Cannot access a disposed object.
Object name: ''frmBill''.

private void distributorBillToolStripMenuItem_Click(object sender,System.EventArgs e)
       {

           frmBill objfrmBill = frmBill.GetChildInstance();
           objfrmBill.MdiParent = this;
           objfrmBill.Show();
           objfrmBill.BringToFront();

       }

推荐答案

http://forums.codeguru.com/archive/index.php/t-417251.html [^ ]

http://social.msdn.microsoft.com/Forums/eu/csharpgeneral/thread/8a15b673-e93c-4965-95b7-5476d7120cc2[^]

http://forums.codeguru.com/archive/index.php/t-417251.html[^]

private void distributorBillToolStripMenuItem_Click(object sender,System.EventArgs e)
        {

            if (objdisbill != null)
            {
                objdisbill = frmDistributorBill.GetChildsInstance();
                objdisbill.MdiParent = this;
                objdisbill.WindowState = FormWindowState.Normal;
                objdisbill.BringToFront();
            }
            else
            {
                objdisbill = new frmDistributorBill();
                objdisbill.FormClosed += delegate { objdisbill = null; };
                objdisbill.Show(this);
            }

        }

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