Solved

Converting a TextBox value to a Decimal

Posted on 2007-11-23
5
1,606 Views
Last Modified: 2013-11-07
This is driving me nuts! I have had a sniplet of code that has been working for awhile but now it has stopped working and I can not figure out why. All I am trying to do is convert a TextBox value into a decimal so I can store it in my db. pretty simple right? I have the TextBox pre populated with a 0 so that a value can be passed if the user is not going to add any hours for this product. I feel like an idiot right now cuz I nothing I do seems to solve the problem.
decimal manHours;

            string mh = manHoursTextBox.Text;

            manHours = Convert.ToDecimal(mh);
 
 

It started throwing an error if no value was in the textbox, so I tried this:
 

if (string.IsNullOrEmpty(manHoursTextBox.Text) == false)

        {

            Session["mh"] = Decimal.Parse(manHoursTextBox.Text);

        }

Open in new window

0
Comment
Question by:digital_slavery
  • 2
  • 2
5 Comments
 
LVL 1

Author Comment

by:digital_slavery
ID: 20341632
Also it does not matter what value I enter into the TextBox it still throws the same error:

Failed to convert parameter value from a String to a Decimal.
0
 
LVL 55

Accepted Solution

by:
Jaime Olivares earned 250 total points
ID: 20341636
you can use:
decimal.TryParse(mh, out manHours);

the TryParse never generates an exception and returns true if conversion was successful, false if not.
0
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 20341638
does you textbox has some character different from digits and point sign?
0
 
LVL 29

Expert Comment

by:Göran Andersson
ID: 20342333
The error doesn't occur in the code that you are showing. The error message comes from the database, so somewhere you are putting a string value in a parameter that the database can not convert to a Decimal value.

Show what you are doing with the value up to where you send the query to the database.
0
 
LVL 1

Author Closing Comment

by:digital_slavery
ID: 31410840
Sorry guys, it was a late night and I overlooked the 2 other columns that were set as money which are also decimal values, which is where the problem really was, I was not passing a value from those 2. Note to self: money is also a decimal!
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

More often than not, we developers are confronted with a need: a need to make some kind of magic happen via code. Whether it is for a client, for the boss, or for our own personal projects, the need must be satisfied. Most of the time, the Framework…
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
Hi friends,  in this video  I'll show you how new windows 10 user can learn the using of windows 10. Thank you.
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

911 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

Need Help in Real-Time?

Connect with top rated Experts

28 Experts available now in Live!

Get 1:1 Help Now