Group Gridview in ASP.NET using dataset!

Question

0.00/5 (No votes)

See more:

Hello,

I am looking for the group gridview and calculate the aggregated function (MIN(score), AVG(score), MAX(score), etc..) within selected group. I need front end code only to solve the following problem:

I populated the gridview data based on dataset ds with query string in the front end. Here is my gridview data for school report look like:

School Test Score Min Max Avg

========================================================================

1 A 100

1 A 67
-------------------------------------------------------------------------
-------------------------------------------------------------------------
1 B 75

1 B 90

1 B 100
--------------------------------------------------------------------------
--------------------------------------------------------------------------
2 A 50
--------------------------------------------------------------------------
--------------------------------------------------------------------------
2 B 100

2 B 40
--------------------------------------------------------------------------
--------------------------------------------------------------------------
2 C 20
--------------------------------------------------------------------------
--------------------------------------------------------------------------
3 A 30

3 A 80
--------------------------------------------------------------------------
--------------------------------------------------------------------------
3 C 100

How do I can group above data with school and test and insert new above lines to display the MIN, MAX, AVG for each group? Then any results of above group aggregation are under 70, then highlight in red text. Any helps in coding this matter are much appreciated. Thanks in advance.

Posted 12-Jul-12 17:28pm

avt2k17

Add a Solution

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)

pradiprenushe · Answer 1 · 2012-07-12T18:43:00

Insted use this query to get data & bind it with normal gridview

select group, min(score), avg(score),max(score)
from table
group by group

Add this event to yoour gridview

XML

void Gridview1_RowDataBound(Object sender, GridViewRowEventArgs e)
  {

    if(e.Row.RowType == DataControlRowType.DataRow)
    {
      // cellno is column in which you score present
if( Convert.ToInt32(e.Row.Cells[cellno].Text) greterthan 70) 
// use symbol  insted of greterthan 
{
e.Row.Style.Add("background","red");
} 

    }

  }

Refer this link for color problem
Different row color in Gridview