public static ConDbForm GetInstance(ScriptForm parent)
{
//判断是否存在该窗体,或时候该字窗体是否被释放过,如果不存在该窗体,则 new 一个新窗体
if (_instance == null || _instance.IsDisposed)
{
_instance = new ConDbForm(parent);
}
return(_instance);
}
private void 连接ToolStripMenuItem_Click(object sender, EventArgs e)
{
conDbForm = ConDbForm.GetInstance(this);
conDbForm.FormBorderStyle = FormBorderStyle.FixedDialog;
conDbForm.TopLevel = true;
conDbForm.ControlBox = true;
conDbForm.Dock = DockStyle.Fill;
conDbForm.StartPosition = FormStartPosition.Manual;
var left = Parent.Parent.Width / 2 + Parent.Parent.Left - conDbForm.Width / 2;
var right = Parent.Parent.Height / 2 + Parent.Parent.Top - conDbForm.Height / 2;
conDbForm.Location = new Point(left, right);
conDbForm.ShowDialog();
}