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I think that
samerh wrote: dsSorted.Tables(0).Columns(6).ColumnMapping = MappingType.Hidden
is wrong
Why are you using column mapping
Itr would help also if you told us what was actually happening
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I know it is not working or wrong 
but how can i hide the desired columns
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DataGrid1.Columns(0).Visible = False
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didnt work i already tried it.
please note that iam creating the datatable and gridview at run time
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if your creating it at runtime make sure the code is in the page_load
make sure that you are def hiding the correct column, i.e. the correct number is in columns[X]
try
MyDS.Tables("Tablename").Columns(0).ColumnMapping = MappingType.Hidden
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Thanks for replying but thats what i wrote in the very first post.
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Your line of code was different in the first post
you need to make sure the column number is correct and that it is run in the correct place
apart from that your on your own
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Dim gv As New GridView
dsSorted.Tables(0).Columns(6).ColumnMapping = MappingType.Hidden
dsSorted.Tables(0).Columns(7).ColumnMapping = MappingType.Hidden
dsSorted.AcceptChanges()
gv.DataSource = dsSorted
gv.DataBind()
that is what i wrote and no i didnt put it on page load cause iam adding several rows to that table at run time
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ValidationExpression="^(([a-zA-Z] |(\\{2}\w+)\$?)(\\(\w[\w].*))+(.jpg|.jpeg)$"
This is the vallidation expression given to when uploading an image file given to the file upload control.But when i tried to upload a jpg file this vallidation message is shown .what is the problem.
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does this happen with different file extensions?
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Sorry for the delay.
What does different extension means.i try to upload an image with .jpg extension.But the vallidation willnot be satisfied with the extension and error sees.how to sort it..
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I want to develope an application in asp.net. We are team of 4 people and want to develope a mid size project using .net 2.0 and ajax ,atlas.
so suggest me some idea. 
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You should be having some objective of the application right? Is this an academic project?
Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips
A pessimist sees only the dark side of the clouds, and mopes; a philosopher sees both sides, and shrugs; an optimist doesn't see the clouds at all - he's walking on them. --Leonard Louis Levinson
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No it is not acedemic project. Ya we need objective  but we want to do something new..........
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Well look closely at yur organisations processes and see if you can improve them
If not think of an area of technology where you have had a prblem before and see if you can find a viable solution to it
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You may enter any public chat room to find an answer to your question
Please, read the first message on this board carefully "How to get an answer to your question"
We here can provide help only for those who know what exactly they need
Have a meeting with your team and team leader, select a project, start developing, and then, if you faced a technical problem select the suitable forum and post you well specified problem
Hence, you may find somone to help
Mohammed Gouda
foreach(Minute m in MyLife)
myExperience++;
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We have made our web application compactable with the tablet PC and we want to enter the data in text fields using the stylus as well as through the mouse (When i click on the TextBox a larger text field [Replacement for Tablet PC Input Panel which should take letters in digital Ink Format and should be converted to Typed Text Format For e.g. Arial, veranda] should be displayed to enter the data and the entered text should be copied in to the respective text field when we are finished).
Overall I need to make the textbox (editable fields) like an Tablet PC Input Panel...Instead of dragging it every time, which is time consuming.
Can you help me with this?
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Hi all,
I want to display images in GridView using the Asp:Image control. But everywhere i could see only examples using the imagepath only. How can display the images stores in the Employees table in Northwind database ?
Thanks in Advance
Dana
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check this out
http://msdn2.microsoft.com/en-us/library/aa479350.aspx
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Thanks for the reply. That examples follows the methods of showing from URL only
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Hi
Are you storing images in db or image only image name in db.
It is easy if you store only image name and type in db.
Thanks.
Rahul
People Laugh on me Because i am Different but i Laugh on them
Because they all are same.
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Hi rahul,
The images are stored as Image DataType in SQL
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I would also mention not to store images in the database as your database will become huge.
It would be better to store the file location in the database and grab that rather then the actual image.
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