在WPF中，如何实现文件上传控件(文本框和浏览文件的按钮)? [英] In WPF, how to implement a file upload control (textbox and a button to browse file)?

问题描述

我有一个WPF，MVVM应用程序.

I have a WPF,MVVM application.

我需要与asp.net中的文件上传"控件相同的功能.

I need the functionality same as "File Upload" control in asp.net.

有人可以告诉我如何实现吗?

Can somebody tell me how to implement that ?

 <StackPanel Orientation="Horizontal">
                <TextBox Width="150"></TextBox>
                <Button Width="50" Content="Browse"></Button>
</StackPanel>

我有这个xaml ...但是当您单击按钮时如何拥有该浏览窗口"?

I have this xaml...but how to have that "browse window" when you click button ?

推荐答案

您可以使用OpenFileDialog类获取文件选择对话框

You can use OpenFileDialog class to get a file choose dialog

OpenFileDialog fileDialog= new OpenFileDialog(); 
fileDialog.DefaultExt = ".txt"; // Required file extension 
fileDialog.Filter = "Text documents (.txt)|*.txt"; // Optional file extensions

fileDialog.ShowDialog(); 

要读取内容:您将从OpenFileDialog中获取文件名，然后使用该文件名执行IO操作.

To read the content : You will get the filename from the OpenFileDialog and use that to do what IO operation on it.

 if(fileDialog.ShowDialog() == DialogResult.OK)
  {
     System.IO.StreamReader sr = new 
     System.IO.StreamReader(fileDialog.FileName);
     MessageBox.Show(sr.ReadToEnd());
     sr.Close();
  }

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