c#之OpenFileDialog解读(打开文件对话框)

OpenFileDialog ofd = new OpenFileDialog();
ofd.Title = "请选择图片";

ofd.InitialDirectory = @"E:\计算机资料\01 C#视频\基础实训4\1110C#基础\资料\img";

//这是系统提供的桌面路径，还可以是其他的路径：比如文档、音乐等文件夹
ofd.InitialDirectory = System.Environment.GetFolderPath(Environment.SpecialFolder.Desktop);

//过滤不同类型的文件
ofd.Filter = "(*.jpg)|*.jpg|(*.txt)|*.txt";

ofd.Filter = "(*.jpg;*.txt)|*.jpg;*.txt";

//表示可以多选
ofd.Multiselect = true;

ofd.ShowDialog();

if (ofd.ShowDialog() == DialogResult.OK)
{
    string[] strNames = ofd.SafeFileNames;
    //将文件名添加到 listbox 中
    for (int i = 0; i < strNames.Length; i++)
    {
        listBox1.Items.Add(strNames[i]);
    }
}

public void ButtonOpen_Click(object sender, EventArgs e)
        {
            OpenFileDialog fileDialog = new OpenFileDialog();

            fileDialog.InitialDirectory="C:\\";    //打开对话框后的初始目录
            fileDialog.Filter = "文本文件|*.txt|所有文件|*.*";
            fileDialog.RestoreDirectory = false;    //若为false，则打开对话框后为上次的目录。若为true，则为初始目录
            if (fileDialog.ShowDialog() == DialogResult.OK)
                FilePath.Text = System.IO.Path.GetFullPath(fileDialog.FileName);//将选中的文件的路径传递给TextBox “FilePath”
        }