AlertInfo output = null; //警报窗口
public void AlertForm_input(string info) //显示警报信息
{
if (output == null || output.IsDisposed == true) //如果子窗口为空或者被窗口释放了
{
output = new AlertInfo((ParentForm)this.Parent.Parent); //警告信息提示窗口
output.ShowInfo.Text = info; //把警告信息传递到AlertInfo中去
output.Show(); //显示警告窗口
}
else
{
output.ShowInfo.Text = info;
}
}
public DBTableInfo(ParentForm parent, OleDbConnection conn)
{
if (conn.State == ConnectionState.Open)
{
InitializeComponent();
this.OleConn = conn;
leftpanelShowTable(conn);
}
else
{
AlertInfo alert = new AlertInfo(parent);
alert.ShowInfo.Text = "查询出错,请先连接数据库";
alert.Show();
}
}