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How do I browse for, and read a text file into an TextBox

Platform: WinForms| Category: TextBox

You use the Frameworks OpenFileDialog to implement this functionality.

	using System.Text;
	using System.IO;
	private void button1_Click(object sender, System.EventArgs e)
		OpenFileDialog dlg = new OpenFileDialog(); 
		dlg.Title = 'Open text file' ; 
		dlg.InitialDirectory = @'c:\' ; 
		dlg.Filter = 'txt files (*.txt)|*.txt|All files (*.*)|*.*' ; 
		if(dlg.ShowDialog() == DialogResult.OK) 
			StreamReader sr = File.OpenText(dlg.FileName);

			string s = sr.ReadLine();
			StringBuilder sb = new StringBuilder();
			while (s != null)
				s = sr.ReadLine();
			textBox1.Text = sb.ToString();

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