database related issue

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Hi,

I have accessed one field from database with datareader.Now I want to check it and the accordinngly want to increase or decrease it.
(e.g. If we got 4 from database and this 4 has been stored in the datareader object(e.g.dr[0] contains 4) now i want to check it aginst 5 if it is 5 then display 6).
How it is possible.
Pls help me out.

Thanks
Abhishek

Posted 16-Jun-11 1:33am

abhiamity86

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2 solutions

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amit28august · Answer 1 · 2011-06-16T01:48:00

Solution 1

C#

if (reader.HasRows)
        {
            while (reader.Read())
            {
                if(reader.GetInt32(0) == 5)
                 {
                         Label1.Text = 6;
                 }
            }
        }

Posted 16-Jun-11 1:48am

amit28august

Comments

abhiamity86 16-Jun-11 7:57am

Thanks For Reply..
But sir it is giving exception Specified cast is not valid in if condition.

amit28august 16-Jun-11 8:41am

dude u have check for the value coming from database....whether it is a integer or string...thats what the error says.....

abhiamity86 17-Jun-11 1:28am

Pls sir Give me some sort of hint so that i can resolve this issue.
Thanks
Abhishek

Uday P.Singh · Answer 2 · 2011-06-16T02:04:00

Solution 2

try this:

C#

SqlDataReader dr = null;
                dr = cmd.ExecuteReader();
                if (dr.HasRows)
                {
                    while (dr.Read())
                    {
                        if (dr.GetInt32(0) == 5)
                        {
                            Response.Write("6");
                        }
                    }
                }

Posted 16-Jun-11 2:04am

Uday P.Singh

Comments

abhiamity86 17-Jun-11 1:31am

Again it is giving Same exception Specified cast is not valid .
Pls help me in resolving the issue.
Here dr is of tinyint type.