Refreshing data grid

Question

4.00/5 (1 vote)

See more:

Am using TableMapping to load data to a data grid. as below

daCompanies.TableMappings.Add("tbl_permits", "companies")

I have a refresh button that just calls the same function used to initially load the data on the data grid. The refresh stops at the code above with an error:

The DataTableMapping.SourceTable is required to be unique, 'tbl_permits' already exists in the collection.

How do i clear OR save changes on the DataTableMapping.SourceTable to database and clear it before reloading it with data?

Thanks

Posted 31-May-11 2:50am

joseph k

Updated 31-May-11 2:51am

ZeeroC00l

v2

Add a Solution

Comments

ZeeroC00l 31-May-11 8:52am

-- added pre, code tag for readability

BR//
Harsha

joseph k 31-May-11 9:27am

I would like to refresh this at this point:
<pre> DGVCompanies.DataSource = Nothing
DGVCompanies.DataSource = dsCompanies.Tables("companies").DefaultView
Me.DGVCompanies.Refresh()</pre>

1 solution

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)

Dave Kreskowiak · Answer 1 · 2011-05-31T06:09:00

Solution 1

Read the error message again. You're trying to add two mappings of the same table, when you can only map a table once. Either remove the line that's mapping the table, or check to see if the mapping already exists before you try to add it.

Posted 31-May-11 6:09am

Dave Kreskowiak

Comments

joseph k 1-Jun-11 1:57am

yes , that is true. I dont want to get rid of the first mapping because it is required when the form loads. My problem is Not the mapping, My problem is , how do i refresh the data grid without compromising the mappings. This is after i do a search and mapping details change and i need the data grid to reflect the new search results