Please solve this error.Argument Exception was caught

Question

0.00/5 (No votes)

See more:

The type of one of the primary key values did not match the type defined in the entity. See inner exception for details.
Parameter name: keyValues

{"The argument types 'Edm.Int32' and 'Edm.String' are incompatible for this operation. Near WHERE predicate, line 1, column 82."}

C#

var loc = (e.Row.Cells[1].Text);
locationID = context.PanchayatiRajLocations.Find(loc).ID;

Here locationId is Type of Int32.

Posted 9-Nov-13 1:27am

Neha Mukesh

Updated 9-Nov-13 1:52am

Nelek

v2

Add a Solution

Comments

♥…ЯҠ…♥ 9-Nov-13 8:05am

Did you check e.Row.Cells[1].Text value? what you get in var loc? see it in quick watch window

Neha Mukesh 12-Nov-13 4:05am

hi
e.row.cells[1].text returns name .That's i can't convert it into INT32

Neha Mukesh 12-Nov-13 4:05am

hi
e.row.cells[1].text returns name .That's i can't convert it into INT32

♥…ЯҠ…♥ 12-Nov-13 5:00am

Updated my solution as per your comments..... try it and lemme know

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)

♥…ЯҠ…♥ · Answer 1 · 2013-11-09T02:09:00

Hi Neha,

You are trying to compare int with string the query that leads to this problem I believe.
Try to see what you get in loc variable first

otherwise try to replace
C#

var loc = (e.Row.Cells[1].Text);

with this line
C#

var loc = Convert.ToInt32(e.Row.Cells[1].Text);
Updated solution:
Try this query and see what you get...

SQL

var locationID = from obj in context.PanchayatiRajLocations
                           where loc == "London"
                           select obj.ID;

Hope this helps you a bit.

Regards,
RK