我要评论本文针对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：
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