Image diaply problem in DataGridView

Question

0.00/5 (No votes)

See more:

Hi All...

I am developing an application .net 2.0 (windows Forms - MDI Application.) I need to display mails in a DataGridView with Image (Read and Unread Image). I have used a DataGridViewImage column and i trying to put the image in that column in Cell_Painting event. But after displaying the image the grid is behaving weird. I can see the frame below the grid,(tranparent). When i move the Form, it will become perfect. Also am not able to view ant message box which comes over the window.

Almost 20 mails will come in one second, the grid is getting hanged while the mails are coming. Please anyonehelp me..

I tried with Invalidate() and Refresh(). But nothg works for me....
In cellpainting event of the grid............

If (.ColumnIndex = 1 )
{
e.value=Image.FromFile(f:\Read1.bmp;)
}

}
reply

Posted 8-Mar-10 21:59pm

viji chandran

Add a Solution

2 solutions

Solution 2

I tried with threading also. But the problem happens in the Cell_painting event. when i comment the following code,it works perfectly,(with a red cress mark in place of image), But i need to display the image.

e.value = MyApplication.global::prperties.resource.ReadImage;
e.drawscaledimage(......) ;

I am stuck up here..please help me.

Posted 9-Mar-10 16:20pm

viji chandran

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Rod Kemp · Accepted Answer · 2010-03-09T00:57:00

Solution 1

Sounds like you need to move the processing/downloading of the mail messages into a background thread, this will stop the UI hanging while the mail messages are being received.

Posted 9-Mar-10 0:57am

Rod Kemp