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  • 限制窗口重复开启

    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;
    }
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  • 原文地址:https://www.cnblogs.com/eastson/p/4205142.html
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