winfrom功能请教
我像在winfrom中一个控件，功能是复制texbox里的内容。这个功能怎么写 --------------------编程问答--------------------private void button1_Click(object sender, System.EventArgs e) {
// Takes the selected text from a text box and puts it on the clipboard.
if(textBox1.SelectedText != "")
Clipboard.SetDataObject(textBox1.SelectedText);
else
textBox2.Text = "No text selected in textBox1";
}
private void button2_Click(object sender, System.EventArgs e) {
// Declares an IDataObject to hold the data returned from the clipboard.
// Retrieves the data from the clipboard.
IDataObject iData = Clipboard.GetDataObject();
// Determines whether the data is in a format you can use.
if(iData.GetDataPresent(DataFormats.Text)) {
// Yes it is, so display it in a text box.
textBox2.Text = (String)iData.GetData(DataFormats.Text);
}
else {
// No it is not.
textBox2.Text = "Could not retrieve data off the clipboard.";
}
}
--------------------编程问答--------------------
if(非空)textbox2.text = textbox1.text; --------------------编程问答-------------------- string str;
if(非空)
str = textbox.text;
textbox2.text = str;
这样比较好.
补充：.NET技术 , C#
