c# - 打开文件对话框并使用 WPF 控件和 C# 选择文件

Question

我有一个TextBoxnamedtextbox1和一个Buttonnamed button1。当我单击时，button1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成textbox1.text这样：

textbox1.Text = "C:\myfolder\myimage.jpg"

Answer 1

像这样的东西应该是你需要的

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;
    }
}

Answer 2

var ofd = new Microsoft.Win32.OpenFileDialog() {Filter = "JPEG Files (*.jpeg)|*.jpeg|PNG Files (*.png)|*.png|JPG Files (*.jpg)|*.jpg|GIF Files (*.gif)|*.gif"}; 
var result = ofd.ShowDialog();
if (result == false) return;
textBox1.Text = ofd.FileName;