Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Parsing a RichText Box like a file?

Posted on 2003-10-24
4
Medium Priority
?
214 Views
Last Modified: 2010-04-16
I am trying to parse email. I have created a richtext box that allows me to drag and drop an email file over it and the email appears in the RichText Box. I want to be able to step through that RichText Box line by line and parse it. Can I use similar commands for stepping through a file to step through the RichText Box? Here is the code that I used to drag and drop the email file into the RichText Box.

private void Form1_Load(object sender, System.EventArgs e)
{          
this.richTextBox1.DragEnter += new System.Windows.Forms.DragEventHandler(this.richTextBox1_DragEnter);  
this.richTextBox1.DragDrop += new System.Windows.Forms.DragEventHandler(this.richTextBox1_DragEnter);  
this.richTextBox1.AllowDrop = true;
}

private void richTextBox1_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)  
{  
if (((DragEventArgs)e).Data.GetDataPresent(DataFormats.Text))  
     ((DragEventArgs)e).Effect = DragDropEffects.Copy;
 
else  
     ((DragEventArgs)e).Effect = DragDropEffects.None;  
}
 
private void richTextBox1_DragDrop(object sender, DragEventArgs e)  
{  
richTextBox1.LoadFile((String)e.Data.GetData("Text"), System.Windows.Forms.RichTextBoxStreamType.RichText);  
}

Thanks!
0
Comment
Question by:kingjamez
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 2

Accepted Solution

by:
smitty22 earned 500 total points
ID: 9615618
You can use RichTextBox's Lines property to get a string array of the lines currently in the text box.
0
 
LVL 6

Assisted Solution

by:zrh
zrh earned 500 total points
ID: 9618785
You can do something like:

StringReader sr = new StringReader(richTextBox1.Text);

StringReader is a descendant of System.IO.TextReader, so that might be what you want.

However, in your richTextBox1_DragDrop event instead of using the LoadFile method, you could open the file yourself using a StreamReader, and parse while writing it to the RichTextBox.
That might give you better performance for larger files, so that you don't have to *essentially* read them twice.

Hope that helps,
ZRH
0

Featured Post

Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article introduced a TextBox that supports transparent background.   Introduction TextBox is the most widely used control component in GUI design. Most GUI controls do not support transparent background and more or less do not have the…
Performance in games development is paramount: every microsecond counts to be able to do everything in less than 33ms (aiming at 16ms). C# foreach statement is one of the worst performance killers, and here I explain why.
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB. How Percona can help Percona can help you determine if Percona Server for MongoDB is the right solution for …

609 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question