本文介绍了如何弹出窗体关闭事件上的消息框的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个富文本框
i想要请求用户在表单结束事件中将该数据保存在richtext框中。
i have a richtext box
i want to ask the user to save that data in richtext box on form closing event.
protected override void OnFormClosing(FormClosingEventArgs e)
{
base.OnFormClosing(e);
if (!e.Cancel) {
if (MessageBox.Show("Really?", "Close", MessageBoxButtons.YesNo) != DialogResult.Yes)
{
e.Cancel = true;
}
}
}
以上是询问用户结束活动的代码。
我在txt文件中保存richtextbox数据的代码是
above is the code for asking user on closing event.
My code for saving richtextbox data in txt file is
<pre lang="cs">public void SaveMyFile()
{
//// Create a SaveFileDialog to request a path and file name to save to.
SaveFileDialog saveFile1 = new SaveFileDialog();
//// Initialize the SaveFileDialog to specify the RTF extension for the file.
saveFile1.DefaultExt = "*.txt";
saveFile1.Filter = "Chat History (*.txt)|*.txt";
//// Determine if the user selected a file name from the saveFileDialog.
if (saveFile1.ShowDialog() == System.Windows.Forms.DialogResult.OK &&
saveFile1.FileName.Length > 0)
{
//// Save the contents of the RichTextBox into the file.
richTextBox1.SaveFile(saveFile1.FileName, RichTextBoxStreamType.PlainText);
}
}
如果用户说是,则保存文件并退出
如果用户说没有那么退出而不保存。
if user says yes then save file and exit
if user says no then exit without saving.
推荐答案
protected override void OnFormClosing(FormClosingEventArgs e)
{
base.OnFormClosing(e);
if (!e.Cancel) {
if (MessageBox.Show("Do you want to save changes?", "Close", MessageBoxButtons.YesNo) != DialogResult.Yes)
{
// e.Cancel = true;
SaveMyFile();
}
}
}
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