C# RichTextBox的MouseEnter事件处理程序
我想在我的RichTextBox中添加一个MouseEnter事件处理程序,我的RichTextBox位于tabcontrol中。以下代码获取当前选定的RichTextBox:C# RichTextBox的MouseEnter事件处理程序,c#,winforms,event-handling,mouseevent,C#,Winforms,Event Handling,Mouseevent,我想在我的RichTextBox中添加一个MouseEnter事件处理程序,我的RichTextBox位于tabcontrol中。以下代码获取当前选定的RichTextBox: private RichTextBox GetRichTextBox() { RichTextBox rtb = null; TabPage tp = tabControl1.SelectedTab; if (tp != null) {
private RichTextBox GetRichTextBox()
{
RichTextBox rtb = null;
TabPage tp = tabControl1.SelectedTab;
if (tp != null)
{
rtb = tp.Controls[0] as RichTextBox;
}
return rtb;
}
TabPage tp = new TabPage("New Document");
RichTextBox rtb = new RichTextBox();
rtb.Dock = DockStyle.Fill;
tp.Controls.Add(rtb);
tabControl1.TabPages.Add(tp);
下面的代码是我用来创建带有RichTextBox的新选项卡的代码:
private RichTextBox GetRichTextBox()
{
RichTextBox rtb = null;
TabPage tp = tabControl1.SelectedTab;
if (tp != null)
{
rtb = tp.Controls[0] as RichTextBox;
}
return rtb;
}
TabPage tp = new TabPage("New Document");
RichTextBox rtb = new RichTextBox();
rtb.Dock = DockStyle.Fill;
tp.Controls.Add(rtb);
tabControl1.TabPages.Add(tp);
我不知道如何为创建的RichTextBox创建鼠标输入事件处理程序。在此方面的任何帮助都将不胜感激 在创建RichTextBox的同一位置,可以向任何事件添加事件处理程序。只需这样做:
RichTextBox rtb = new RichTextBox();
// the rest of your code...
rtb.MouseEnter += rtb_MouseEnter;
void rtb_MouseEnter(object sender, EventArgs e)
{
// Do what ever you want here...
}
创建鼠标侦听器,将鼠标侦听器添加到需要它们的对象
....
TabPage tp = new TabPage("New Document");
RichTextBox rtb = new RichTextBox();
rtb.Dock = DockStyle.Fill;
//Add listener
rtb.MouseClick += new MouseEventHandler(Control1_MouseClick);
tp.Controls.Add(rtb);
tabControl1.TabPages.Add(tp);
...
}
private void Control1_MouseClick(Object sender, MouseEventArgs e) {
//Stuff
}
您可以使用RichTextBox类的“onMouseCenter”事件。创建RichTextBox对象时只需注册事件:
TabPage tp = new TabPage("New Document");
RichTextBox rtb = new RichTextBox();
rtb.MouseEnter += MyHandler;
rtb.Dock = DockStyle.Fill;
tp.Controls.Add(rtb);
tabControl1.TabPages.Add(tp);
然后将要执行的代码放入eventhandler中:
private void MyHandler(object s, EventArgs e)
{
// code to be executed on mouse enter
}
您还应该在适当的位置取消注册事件。将事件处理程序添加到RichTextBox,然后再将其添加到选项卡控件
rtb.MouseEnter += new EventHandler(TabControlMouseEnterEvent);
然后创建事件处理程序
private void TabControlMouseEnterEvent(object sender, EventArgs e)
{
RichTextBox rt = (RichTextBox)sender;
// do something with selected Rich Text Box
}
希望这有帮助。哦,天哪,我觉得自己很愚蠢。我曾尝试过类似的方法,但我想我在什么地方出了问题。非常感谢。这对我有用。