打开文件对话框并使用 WPF 控件和 C# 选择文件 [英] Open file dialog and select a file using WPF controls and C#

问题描述

我有一个名为 textbox1 的 TextBox 和一个名为 button1 的 Button.当我单击 button1 时，我想浏览我的文件以仅搜索图像文件(类型 jpg、png、bmp...).当我选择一个图像文件并在文件对话框中单击确定时，我希望将文件目录写入 textbox1.text 中，如下所示:

I have a TextBox named textbox1 and a Button named button1. When I click on button1 I want to browse my files to search only for image files (type jpg, png, bmp...). And when I select an image file and click Ok in the file dialog I want the file directory to be written in the textbox1.text like this:

textbox1.Text = "C:myfoldermyimage.jpg"

推荐答案

这样的事情应该是你所需要的

Something like that should be what you need

private void button1_Click(object sender, RoutedEventArgs e)
{
    // Create OpenFileDialog 
    Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();



    // Set filter for file extension and default file extension 
    dlg.DefaultExt = ".png";
    dlg.Filter = "JPEG Files (*.jpeg)|*.jpeg|PNG Files (*.png)|*.png|JPG Files (*.jpg)|*.jpg|GIF Files (*.gif)|*.gif"; 


    // Display OpenFileDialog by calling ShowDialog method 
    Nullable<bool> result = dlg.ShowDialog();


    // Get the selected file name and display in a TextBox 
    if (result == true)
    {
        // Open document 
        string filename = dlg.FileName;
        textBox1.Text = filename;
    }
}

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