C# (CSharp) Singleton FormToolbox示例

示例#1

 public static FormToolbox GetInstance()
 {
     if (ftb == null || ftb.IsDisposed)
     {
         ftb           = new FormToolbox();
         ftb.MdiParent = Form1.ActiveForm;
     }
     return(ftb);
 }

示例#2

文件： Form1.cs 项目： PlumpMath/DesignPattern-1011

 private void ToolStripMenuItemToolbox_Click(object sender, EventArgs e)
 {
     FormToolbox.GetInstance().Show();
 }