WPF - 保存文件对话框 [英] WPF - SaveFileDialog

问题描述

我使用 WPF 中的 SaveFileDialog 在用户选择的特定位置导出到 excel 文件.但是在打开 SaveFileDailog 然后用户点击对话框上的 Cancel button 然后我得到另一个对话框，上面写着 你想保存你所做的更改吗?到'Sheet1'?" 然后导出完成" 而不是取消导出.

I am using the SaveFileDialog in WPF to export into excel file at particular loaction selected by user. But in between when SaveFileDailog is opened then user clilks on Cancel button on dialog then i am getting the another dialog that says "Do you want to save changes you made to 'Sheet1'?" and then "Export completed" instead of cancelling to export.

那我该怎么办呢?WPF 中的任何类似 'DialogResult' 的东西与 winForms 中的相同吗?

So what i have to do to tackle with it? Any thing in WPF something like 'DialogResult' that is same as in winForms?

推荐答案

如果用户保存(ShowDialog 方法返回一个可为空的 bool)，SaveFileDialog 将返回 true，如果用户按下取消，则返回 false/null.下面是一个示例 MSDN 代码，可帮助您入门:

SaveFileDialog will return true if user saved (the ShowDialog method returns a nullable bool), and return false/null if user pressed cancel. Below is a sample MSDN code to get you started:

// Configure save file dialog box
Microsoft.Win32.SaveFileDialog dlg = new Microsoft.Win32.SaveFileDialog();
dlg.FileName = "Document"; // Default file name
dlg.DefaultExt = ".txt"; // Default file extension
dlg.Filter = "Text documents (.txt)|*.txt"; // Filter files by extension

// Show save file dialog box
Nullable<bool> result = dlg.ShowDialog();

// Process save file dialog box results
if (result == true)
{
    // Save document
    string filename = dlg.FileName;
}

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