Solved

Writing a value to a datagrid

Posted on 2016-08-04
1
35 Views
Last Modified: 2016-08-04
Hello,

I have an application that allows user to add a new record in a datagrid view for a list of users; small table.

I check to see if the user 'forgot' to add certain fields required by my program. If they forgot the field I write a default value for them. The situation is this:

1. I ADD a new record
2. The user is entered just fine while leaving out these two fields that I'm checking for.
3. This code errors out telling me that:
An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dll. Additional information: Index was out of range. Must be non-negative and less than the size of the collection.

I sure hope that you can help me!


Dim x
        x = Log_In_CredentialsDataGridView.SelectedRows(0).Cells(5).Value.ToString
        If x = "" Then Log_In_CredentialsDataGridView.SelectedRows(0).Cells(5).Value = 5

        Dim y
        y = Log_In_CredentialsDataGridView.SelectedRows(0).Cells(6).Value.ToString
        If y = "" Then Log_In_CredentialsDataGridView.SelectedRows(0).Cells(6).Value = 0
0
Comment
Question by:SchoolTeacher54
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 81

Accepted Solution

by:
David Johnson, CD, MVP earned 500 total points
ID: 41743438
if you try and convert a NULL to a string you will get problems, test for it first

if Log_In_CredentialsDataGridView.SelectedRows(0).Cells(5).Value is Nothing Then
Log_In_CredentialsDataGridView.SelectedRows(0).Cells(5).Value = 5
Endif

if Log_In_CredentialsDataGridView.SelectedRows(0).Cells(6).Value is Nothing Then
Then Log_In_CredentialsDataGridView.SelectedRows(0).Cells(6).Value = 0
Endif

Open in new window

0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In my previous two articles we discussed Binary Serialization (http://www.experts-exchange.com/A_4362.html) and XML Serialization (http://www.experts-exchange.com/A_4425.html). In this article we will try to know more about SOAP (Simple Object Acces…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question