.net(C#)中如何制作[打开]按钮，点击后在本地资源里选取一个txt

[matee]

.net(C#)中如何制作[打开]按钮，点击后允许在本地资源里选取一个文件，如txt


请问如何实现?

[freeboy827]

OpenFileDialog file = new OpenFileDialog();
            file.Filter = "文本文档(*.txt)|*.txt";
            if (file.ShowDialog() == DialogResult.OK)
            {
                
            }

[goldxinx]

做一个按钮在点击事件里写

OpenFileDialog file = new OpenFileDialog();
            file.Filter = "文本文档(*.txt)|*.txt";
            if (file.ShowDialog() == DialogResult.OK)
            {
                ///something you want do
            }

[boywangliang]

private void button1_Click(object sender, System.EventArgs e)
{
Stream myStream;
OpenFileDialog openFileDialog1 = new OpenFileDialog();

openFileDialog1.InitialDirectory = "c:\\" ;
openFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*" ;
openFileDialog1.FilterIndex = 2 ;
openFileDialog1.RestoreDirectory = true ;

if(openFileDialog1.ShowDialog() == DialogResult.OK)
{
if((myStream = openFileDialog1.OpenFile())!= null)
{
// Insert code to read the stream here.
myStream.Close();
}
}
}

[boywangliang]

private void btnLoader_Click(object sender, EventArgs e)
{
openFileDialog.Filter = "文本文档(*.txt)|*.txt";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
System.IO.StreamReader sr = new
System.IO.StreamReader(openFileDialog.FileName);
filename = openFileDialog.FileName;
sr.Close();
ptbPhoto.Image = Image.FromFile(filename);
txtCertificate.Text = filename;
}


}
　openFileDialog你查一下这个控件的帮助就知道了

[Learn-anything]

ls 的说完了