An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll error occurred?

Question

1.22/5 (2 votes)

See more:

, +

Am getting error Unbound Expression. I Created a new column & Unbounded Expression on Runtime. I get a particular cell values(GetRowCellValue) from gridview and try to change that unbound expression column with new value(SetRowCellValue). But error shown whats my mistake ? Help me.

This is my Code.

C#

private void gridView1_CustomUnboundColumnData(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e)
   {

           GridView view = sender as GridView;


           if (e.Column.FieldName == "PriceQuantity" && e.IsGetData)
           {
               //e.Value = getTotalValue(view, e.ListSourceRowIndex);
               calfun();
           }
           else
           {
               // nothing
           }

   }


   private void calfun()
   {
       if (gridView1.FocusedRowHandle >= 1)
       {

           string temp = "Discount";
           //string dis = TXE_Gettype.Text.ToString();
           object objec = gridView1.GetRowCellValue(gridView1.FocusedRowHandle, gridView1.Columns["Type"]);
           string dis = objec.ToString();

           if (dis == temp)
           {
               object obj = gridView1.GetRowCellValue(gridView1.FocusedRowHandle - 1, gridView1.Columns["Each"]);

               int aa = Convert.ToInt32(obj);
               //textEdit1.Text = aa.ToString();

               object obj1 = gridView1.GetRowCellValue(gridView1.FocusedRowHandle, gridView1.Columns["Each"]);

               int a = Convert.ToInt32(obj1);
               int b = aa;

               int c = a * b;

               //textEdit2.Text = c.ToString();

               gridView1.SetRowCellValue(gridView1.FocusedRowHandle, gridView1.Columns["PriceQuantity"], c);
           }
       }
       else
       {
           }
   }

Posted 25-Nov-13 2:53am

srihari1904

Add a Solution

2 solutions

Solution 1

I think you're supposed to set the value using e.Value = ...; instead of using SetRowCellValue. I would imagine SetRowCellValue would trigger the databind again, which calls calfun creating infinite recursion. Can't be sure unless I'd see the complete stack trace. But try using e.Value instead.

See also the sample at the documentation[^]:

C#

private void gridView1_CustomUnboundColumnData(object sender, CustomColumnDataEventArgs e) {
    GridView view = sender as GridView;
    if (e.Column.FieldName == "Total" && e.IsGetData) 
        e.Value = getTotalValue(view, e.ListSourceRowIndex);
}

Posted 25-Nov-13 3:59am

Maarten Kools

Comments

srihari1904 26-Nov-13 0:33am

Hi ^Mo^, I need to perform two calculation 1) normally [Quantity * Each] this is done using

<pre lang="c#"> e.Value = getTotalValue(view, e.ListSourceRowIndex);</pre>

If the 1st column(RepositoryLookupEdit) in Gridview == ["Discount"] in this condition i need to perform other calculation. I want to get a cell value from previous row and get a cell value from current row and i need to multiply both & then set in a Unbound Column[PriceQuantity]. How to complete this task.

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)

Sergey Alexandrovich Kryukov · Accepted Answer · 2013-11-25T05:56:00

In nearly all situations, this exception is thrown as the result of "infinite" recursion, direct or indirect, or mutual recursion:
http://en.wikipedia.org/wiki/Recursion[^],
http://en.wikipedia.org/wiki/Recursion_(computer_science)[^],
http://en.wikipedia.org/wiki/Mutual_recursion[^].

I cannot immediately see the source of the problem, but such things are pretty easy found using the debugger. The key is using the Call Stack debug window. Please see my past answer for more detailed instruction on this process: System.Data.dll over flow[^].

—SA