how to add values of a column of gridview

Question

1.44/5 (2 votes)

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C#

Int32 sum = 0;
             for (Int32 i = 0 ; i< this.GridView1.Rows.Count; i++)
             {
                 sum += Int32.Parse(GridView1.Rows[i].Cells[4].Text);

             }

how to add the values of a column???

Posted 24-Sep-13 1:14am

Omprakash Kukana

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Comments

[no name] 24-Sep-13 7:19am

Just like you are?

Omprakash Kukana 24-Sep-13 7:37am

wt u mean?

Omprakash Kukana 24-Sep-13 7:37am

its not working

Omprakash Kukana 24-Sep-13 7:40am

Int32.Parse(GridView1.Rows[i].Cells[4].Text);
here error is input string was not in a correct format

[no name] 24-Sep-13 7:53am

Don't you think that the error message that you are getting is kind of "need to know information" for anyone that might try and help you? The error message means exactly what it says, the text cannot be parsed to an integer.

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Omprakash Kukana · Accepted Answer · 2013-09-25T01:28:00

Solution 1

C#

decimal a = 0;
           for (Int32 i = 0; i < this.GridView1.Rows.Count; i++)
           {

               a = a + Convert.ToDecimal(((Label)GridView1.Rows[i].FindControl("label3")).Text.ToString());

           }
           lbl_total.Text = Convert.ToString(a);

Posted 25-Sep-13 1:28am

Omprakash Kukana

Comments

Richard MacCutchan 25-Sep-13 7:54am

That's a very bad way of doing it. What if the text contains non-numeric characters; you will just get an exception.

[no name] 25-Sep-13 9:57am

He's rep building.

Richard MacCutchan 25-Sep-13 10:13am

Thought so, what a waste of time and effort.

Omprakash Kukana 26-Sep-13 0:13am

if this solution is not a better way to solve problem then tell me your solution

Richard MacCutchan 26-Sep-13 3:22am

Look at your Convert statement. Firstly why are you calling ToString on a Text item, which is already a string? What happens if the text contains invalid characters, what happens if the call to FindControl fails, etc. You should not assume that all these parts of the statement will succeed. And lastly you should not use Convert unless you can guarantee that your string will contain only digits; use TryParse, and be ready to handle error conditions.

Omprakash Kukana 26-Sep-13 3:59am

okay if FindControl fails then wt sd i do?

Richard MacCutchan 26-Sep-13 4:04am

No idea, it's your program.

Omprakash Kukana 26-Sep-13 4:35am

meet me on fb this isw my fb profile
https://www.facebook.com/choudharyoman

Richard MacCutchan 26-Sep-13 4:47am

What?

Omprakash Kukana 26-Sep-13 5:11am

dont u understand english?????

Richard MacCutchan 26-Sep-13 5:26am

Yes, what is your problem?

Omprakash Kukana 26-Sep-13 23:11pm

no i dnt hv any problem but u dear u need a psyclogist

Richard MacCutchan 27-Sep-13 3:28am

Well your problems seem to be:
1. You write like child (dnt, hv etc).
2. I still have no idea what you are talking about.

Omprakash Kukana 27-Sep-13 3:49am

where from u are mr.Richard MacCutchan

Richard MacCutchan 27-Sep-13 4:34am

here.

Omprakash Kukana 27-Sep-13 5:22am

stay here ds world is so large and u sdnt cm out from here bcz.

Richard MacCutchan 27-Sep-13 5:24am

What is this drivel? If you have technical issues then post them here. If you wish to talk like a child then please feel free to do it elsewhere.

Omprakash Kukana 27-Sep-13 5:40am

ohh drivel seems u are oldage
by d way i hv given u my fb account u can come at there

Omprakash Kukana 27-Sep-13 5:45am

if u are oldage then sorry 4 distrb u i hv no intenstion to distrb u but sm of ur points disapointed me so its happend i respect oldage people and i apologise 4 dt

Richard MacCutchan 27-Sep-13 5:50am

sm of ur points disapointed me
What exactly are you talking about?