Question

specified cast is not valid when i delete the decimal amount value from my cell i datagridview

Asked by: gonadn

I get error message saying that the specified cast is not valid when i delete the decimal amount value from my cell i datagridview and click in another cell the error message shows upp saying that the specified cast is not valid....

The grid cell contain a decimal value 0.00 , and it happens when i delete value and click in another cell....

if ( row.RowState != DataRowState.Detached)
                    if ((int)row.AccountRow.Type >= 128)
                    {
                        sumRegisteredRight += row.Amount;  //    ERROR ON THIS LINE
                    }
                    else
                    {
                        sumRegisteredLeft += row.Amount;
                    }
                                  
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Asked On
2009-02-12 at 03:46:09ID24136804
Topics

C# Programming Language

,

.NET

Participating Experts
1
Points
500
Comments
5

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Answers

 

by: gonadnPosted on 2009-02-12 at 03:50:06ID: 23621073

here is the full function...

 private decimal GetSumRegistered( ref decimal sumRegisteredLeft, ref decimal sumRegisteredRight)
        {
            sumRegisteredRight = 0;
            sumRegisteredLeft = 0;
 
            foreach (DsReconItems.MatchItemRow row in dsReconItems1.MatchItem)
            {
                if ( row.RowState != DataRowState.Detached)
                    if ((int)row.AccountRow.Type >= 128)
                    {
                        sumRegisteredRight += row.Amount;
                    }
                    else
                    {
                        sumRegisteredLeft += row.Amount;
                    }
            }
            return sumRegisteredLeft + sumRegisteredRight;
        }

                                              
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by: gonadnPosted on 2009-02-12 at 04:20:18ID: 23621225

Specified cast is not valid, when column returns NULL or is empety.....??

HELP PLEEAASSEEE...

 

by: vivekthangaswamyPosted on 2009-02-12 at 06:20:52ID: 23622147

Your facing this problem due to nullable and type casting. Please follow the following discussion and solve your problem

http://www.developmentnow.com/g/36_2008_2_0_0_1051275/Nullable-types-giving-error.htm

 

 

by: gonadnPosted on 2009-02-12 at 06:36:02ID: 23622305

here is the correct answer for my prob......thank anyway experts....HUHHHH

 if ( row.RowState != DataRowState.Detached && row["Amount"] != DBNull.Value)

 

by: vivekthangaswamyPosted on 2009-02-12 at 06:41:31ID: 23622376

Yes. this is what explained in that discussion.

20120131-EE-VQP-002

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