Gridview total

Hiii... I have One small asp.net aplication . in this gridview is bounded but column is dynamically created ie ) table which bound the gridview that is created at runtime so please help me to do total in footer...
mohitbhatia5Asked:
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Muhammad Ousama GhazaliSolution Analyst & ArchitectCommented:
If you atleast know the number of columns being created dynamically, you may acheive this in GridView_PreRender event. Using a loop traverse through the rows and for each coloumn note the value (to be summed) in a separate variable (one for each column).  Have a check in the loop to check if the RowType is DataRow and if the RowType is Footer then write out these values. Try using the following code in GridView_PreRender.

int intColumn1 = 0;
int intColumn2 = 0;
 
foreach (GridViewRow row in GridView1.Rows)
{
  if (row.RowType == DataControlRowType.DataRow)
  {
      intColumn1 += (int)row.Cells(0).Text;
      intColumn2 += (int)row.Cells(1).Text;
  }
  
  if (row.RowType == DataControlRowType.Footer)
  {
      ((Label)row.Cells(0).FindControl("lblTotalColumn1")).Text = intColumn1.ToString();
      ((Label)row.Cells(2).FindControl("lblTotalColumn2")).Text = intColumn2.ToString();
  }
}

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Muhammad Ousama GhazaliSolution Analyst & ArchitectCommented:
If you are using DataSet or DataTable to bind your grid dynamically use one of the following versions of the code in the RowDataBound event of GridView assuming you have a lable named lblTotalRecords and lblTotalDisplayedRecords.
'Page Level variable defined
Private m_intTotalRecords As Integer
 
'During data binding store total number of records in a page-level variable
m_intTotalRecords = DataSet1.Tables(0).Rows.Count
 
'OR
 
m_intTotalRecords = DataTable1.Rows.Count
 
 
'Write the following in RowDataBound event of GridView
 
If e.Row.RowType = DataControlRowType.Footer Then
 
  'Number of total records
  CType(e.Row.Cells(0).FindControl("lblTotalRecords"), Label).Text = m_intTotalRecords.ToString()
  'Number of records displayed
  CType(e.Row.Cells(0).FindControl("lblTotalDisplayedRecords"), Label).Text = GridView1.Rows.Count
 
End If

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mohitbhatia5Author Commented:
I m using asp.net with c#...
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Muhammad Ousama GhazaliSolution Analyst & ArchitectCommented:
See the code below:
//Page Level variable defined
private int m_intTotalRecords;
 
//During data binding store total number of records in a page-level variable
m_intTotalRecords = DataSet1.Tables(0).Rows.Count;
 
//OR
 
m_intTotalRecords = DataTable1.Rows.Count;
    
    
//Write the following in RowDataBound event of GridView
 
if (e.Row.RowType == DataControlRowType.Footer) {
  
  //Number of total records
  ((Label)e.Row.Cells(0).FindControl("lblTotalRecords")).Text = m_intTotalRecords.ToString();
  //Number of records displayed
  ((Label)e.Row.Cells(0).FindControl("lblTotalDisplayedRecords")).Text = GridView1.Rows.Count;
}

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mohitbhatia5Author Commented:
this code tells the no. of rows in grid...but i want sum total of data of each column..
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mohitbhatia5Author Commented:
hiiiii... you r right nw but i have an error which i attached ....this error become when i comment the if loop..if i dont comment then total will not display.. i hv one more problem regard this...which is where i place the lables in footer ...because column of grid are autogenerated...

please help me....
error.bmp
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Muhammad Ousama GhazaliSolution Analyst & ArchitectCommented:
The attached image is totally black. Please save it as JPEG instead of BMP in paint or whatever tool you used to take snapshot and re-attach.
For your problem in footer, make sure you have set ShowFooter property of the GridView to True. Further, replace line 14 and 15 of the above code with the code below, however make sure you are passing right index value in Cells():

row.Cells(0).Text = intColumn1.ToString();
row.Cells(1).Text = intColumn2.ToString();

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mohitbhatia5Author Commented:
Every thing is fine but when i comment if loop ....
when not comment then following error is their...showfooter prot is true...
error.JPG
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mohitbhatia5Author Commented:
Show this
error.JPG
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Muhammad Ousama GhazaliSolution Analyst & ArchitectCommented:
Please use the code I posted in my last comment.
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mohitbhatia5Author Commented:
yes i have use that code but that code will  display total in last row of the grid only when i comment the
if (row.RowType == DataControlRowType.Footer)
            {
}
loop...instead of footer of the grid....when i remove the comment from if loop the it will show the error...
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Muhammad Ousama GhazaliSolution Analyst & ArchitectCommented:
Please use the following as guided and for more details on a similar solution see the following link:
http://www.asp.net/Learn/data-access/tutorial-15-vb.aspx

//use these lines outside the loop and remove if statemetn for rowtype = footer
GridView1.FooterRow.Cells(0).Text = m_intColumn1.ToString();
GridView1.FooterRow.Cells(1).Text = m_intColumn2.ToString();
 
//another alternative would be this solution
//create these variable at page level
int m_intColumn1 = 0;
int m_intColumn2 = 0;
 
//use this code in RowDataBound event rather than PreRender event
if (e.Row.RowType == DataControlRowType.DataRow)
{
    intColumn1 += (int)e.Row.Cells(0).Text;
    intColumn2 += (int)e.Row.Cells(1).Text;
}
 
if (e.Row.RowType == DataControlRowType.Footer)
{
    e.Row.Cells(0).Text = m_intColumn1.ToString();
    e.Row.Cells(1).Text = m_intColumn2.ToString();
}

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