WinForm ToolTip使用方法小结

本文针对winform tooltip使用方法进行实例总结，希望对大家学习c#程序设计有所帮助。具体如下：

程序功能代码如下：

using system.drawing;
using system.windows.forms;

namespace winformutilhelpv2
{
  /// <summary>
  /// 基于.net 2.0的tooltip工具类
  /// </summary>
  public static class tooltiptoolv2
  {
    /// <summary>
    /// 为控件提供tooltip
    /// </summary>
    /// <param name="control">控件</param>
    /// <param name="tip">tooltip</param>
    /// <param name="message">提示消息</param>
    public static void showtooltip(this control control, tooltip tip, string message)
    {
      point _mousepoint = control.mouseposition;
      int _x = control.pointtoclient(_mousepoint).x;
      int _y = control.pointtoclient(_mousepoint).y;
      tip.show(message, control, _x, _y);
      tip.active = true;
    }
    /// <summary>
    /// 为控件提供tooltip
    /// </summary>
    /// <param name="control">控件</param>
    /// <param name="tip">tooltip</param>
    /// <param name="message">提示消息</param>
    /// <param name="durationtime">保持提示的持续时间</param>
    public static void showtooltip(this control control, tooltip tip, string message, int durationtime)
    {
      point _mousepoint = control.mouseposition;
      int _x = control.pointtoclient(_mousepoint).x;
      int _y = control.pointtoclient(_mousepoint).y;
      tip.show(message, control, _x, _y, durationtime);
      tip.active = true;
    }
    /// <summary>
    /// 为控件提供tooltip
    /// </summary>
    /// <param name="control">控件</param>
    /// <param name="tip">tooltip</param>
    /// <param name="message">提示消息</param>
    /// <param name="xoffset">水平偏移量</param>
    /// <param name="yoffset">垂直偏移量</param>
    public static void showtooltip(this control control, tooltip tip, string message, int xoffset, int yoffset)
    {
      point _mousepoint = control.mouseposition;
      int _x = control.pointtoclient(_mousepoint).x;
      int _y = control.pointtoclient(_mousepoint).y;
      tip.show(message, control, _x + xoffset, _y + yoffset);
      tip.active = true;
    }
    /// <summary>
    /// 为控件提供tooltip
    /// </summary>
    /// <param name="control">控件</param>
    /// <param name="tip">tooltip</param>
    /// <param name="message">提示消息</param>
    /// <param name="xoffset">水平偏移量</param>
    /// <param name="yoffset">垂直偏移量</param>
    /// <param name="durationtime">保持提示的持续时间</param>
    public static void showtooltip(this control control, tooltip tip, string message, int xoffset, int yoffset, int durationtime)
    {
      point _mousepoint = control.mouseposition;
      int _x = control.pointtoclient(_mousepoint).x;
      int _y = control.pointtoclient(_mousepoint).y;
      tip.show(message, control, _x + xoffset, _y + yoffset, durationtime);
      tip.active = true;
    }
  }
}

使用方法示例：

using system;
using system.windows.forms;
using winformutilhelpv2;

namespace tooltiptoolv2test
{
  public partial class form1 : form
  {
    public form1()
    {
      initializecomponent();
    }
    private void button1_click(object sender, eventargs e)
    {
      button1.showtooltip(tooltip, "button1_click");
    }
    private void listbox1_click(object sender, eventargs e)
    {
      listbox1.showtooltip(tooltip, "listbox1_click", 500);
    }
  }
}

代码运行效果如下：