Unable to delete specific row from gridview

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VS2010

hi i have issues deleting a specific row in the gridview.

this is the error message:

Input string is not in a correct format

for this particular line

int shoppingCartID = Convert.ToInt32(delCart.CommandArgument);

any idea why?

in addition to this, the value for delCart.CommandArgument is userID and shoppingCartID :

int userID = Convert.ToInt32(Session["userID"] = "3");
int shoppingCartID = Convert.ToInt32(delCart.CommandArgument);
del.DeleteSCitems(userID, shoppingCartID);

Posted 15-Jun-13 7:11am

Jerrell77

Updated 16-Jun-13 19:59pm

v2

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Jerrell77 15-Jun-13 13:12pm

this gridview shows the shopping cart for my project

CHill60 15-Jun-13 13:14pm

What is the value of delCart.CommandArgument?

Jerrell77 15-Jun-13 14:09pm

will get back to you!

Jerrell77 17-Jun-13 2:00am

userID and shoppingCartID ?

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 15-Jun-13 13:29pm

Debug and find what is the value of delCart.CommandArgument, which is creating problem I guess.

Jerrell77 15-Jun-13 14:08pm

ok will do and get back to you!

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 15-Jun-13 15:01pm

Ok. Hit reply after you get it.

Jerrell77 17-Jun-13 1:46am

hi the error message shows "Input string was not in a correct format" and "Server error in / Application". any idea why?

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 17-Jun-13 3:34am

Can you show the markup of gridview in aspx page?

Jerrell77 17-Jun-13 3:38am

nope cant show it out

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 17-Jun-13 4:32am

Why? Is there any problem? Then tell me what have you specified in CommandArgument of that control?

Jerrell77 17-Jun-13 4:41am

int userID = Convert.ToInt32(Session["userID"] = "3");
int shoppingCartID = Convert.ToInt32(delCart.CommandArgument);
del.DeleteSCitems(userID, shoppingCartID);

these are the statements

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 17-Jun-13 4:50am

No, I am not asking that.
In that markup of control in aspx page, what have you specified in CommandArgument atrribute?

Jerrell77 17-Jun-13 2:00am

the value is shoppingCartID and UserID?

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willington.d · Accepted Answer · 2013-06-15T21:19:00

Hi
Follow the below one, If you are using GridView_RowCommand:

GridViewRow gRow = (GridViewRow)(((ImageButton)e.CommandSource).NamingContainer);
int RowIndex = gRow .RowIndex;

Use the row index and get the selected row id and delete the record.

Click on Delete boutton and it is inside item template:

C#

GridViewRow gRow = (GridViewRow)((ImageButton)(sender)).NamingContainer;
string strId = ((HiddenField)gRow.FindControl("hdnId")).Value;

use the strId and delete.

Regards
Wills