我对制作保存文件对话框感到震惊。我完成了所有工作,但是当我尝试保存已存在的文件时,我想显示一个对话框,其中包含覆盖,取消或否的选项。当用户单击“否”时,我希望再次显示saveFodlerDialog并重复该过程。但我不知道如何实现它。
我在下面粘贴相关代码:
private void New_Project(object sender, RoutedEventArgs e)
{
var saveFolderDlg = new System.Windows.Forms.FolderBrowserDialog();
System.Windows.Forms.DialogResult dlgResult = saveFolderDlg.ShowDialog();
if (dlgResult == System.Windows.Forms.DialogResult.OK)
{
saveFolderDlg.RootFolder = Environment.SpecialFolder.Desktop;
saveFolderDlg.ShowNewFolderButton = true;
string projectPath = saveFolderDlg.SelectedPath;
string prjFileName = System.IO.Path.GetFileName(projectPath);
string newPath = System.IO.Path.Combine(projectPath, prjFileName);
if (!System.IO.File.Exists(newPath+".rnd"))
{
CreateNewProejct(projectPath);//works fine
}
else
{
string msgBoxTxt = "Project already exists, Override?";
MessageBoxButton button = MessageBoxButton.YesNoCancel;
string caption = "New porject";
MessageBoxImage icon = MessageBoxImage.Warning;
MessageBoxResult result = MessageBox.Show(msgBoxTxt,caption, button, icon);
switch (result)
{
case MessageBoxResult.No:
//what to do here to restart the process of saving project
break;
case MessageBoxResult.Cancel:
break;
case MessageBoxResult.Yes:
CreateNewProejct(projectPath);
break;
}
}
}
}
答案 0 :(得分:1)
您可以再次递归调用NewProject方法。
private void NewProject()
{
var saveFolderDlg = new FolderBrowserDialog();
DialogResult dlgResult = saveFolderDlg.ShowDialog();
if (dlgResult == System.Windows.Forms.DialogResult.OK)
{
saveFolderDlg.RootFolder = Environment.SpecialFolder.Desktop;
saveFolderDlg.ShowNewFolderButton = true;
string projectPath = saveFolderDlg.SelectedPath;
string prjFileName = System.IO.Path.GetFileName(projectPath);
string newPath = System.IO.Path.Combine(projectPath, prjFileName);
if (!System.IO.File.Exists(newPath + ".rnd"))
{
CreateNewProejct(projectPath);//works fine
}
else
{
string msgBoxTxt = "Project already exists, Override?";
MessageBoxButton button = MessageBoxButton.YesNoCancel;
string caption = "New porject";
MessageBoxImage icon = MessageBoxImage.Warning;
MessageBoxResult result = MessageBox.Show(msgBoxTxt, caption, button, icon);
switch (result)
{
case MessageBoxResult.No:
NewProject();
break;
case MessageBoxResult.Cancel:
break;
case MessageBoxResult.Yes:
CreateNewProejct(projectPath);
break;
}
}
}
}
Btw:你的代码中有一些拼写错误 - > Proejct :)