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限制窗口重复开启

时间:2015-01-06 09:41:35      阅读:256      评论:0      收藏:0      [点我收藏+]
private void companyToolStripMenuItem1_Click(object sender, EventArgs e)
{
    Master.CompanyMasterForm cmpnymasterform = null;
    bool isFormOpen = IsAlreadyOpen(typeof(Master.CompanyMasterForm));
    if (isFormOpen == false)
    {
        cmpnymasterform = new Master.CompanyMasterForm();
        cmpnymasterform.StartPosition = FormStartPosition.CenterScreen;

        cmpnymasterform.MdiParent = this;
        cmpnymasterform.Show();
    }
}

private bool IsAlreadyOpen(Type formType)
{
    bool isOpen = false;
    foreach (Form f in Application.OpenForms)
    {
        if (f.GetType() == formType)
        {
            f.BringToFront();
            f.WindowState = FormWindowState.Normal;
            isOpen = true;
        }
    }
    return isOpen;
}

限制窗口重复开启

原文:http://www.cnblogs.com/eastson/p/4205142.html

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