Solved

Converting a TextBox value to a Decimal

Posted on 2007-11-23
5
1,604 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

Top 6 Sources for Identifying Threat Actor TTPs

Understanding your enemy is essential. These six sources will help you identify the most popular threat actor tactics, techniques, and procedures (TTPs).

Join & Write a Comment

Flash (http://en.wikipedia.org/wiki/Adobe_Flash) has evolved over the years to where it has become a masterful tool for displaying content screen.  It has excellent layout placement, UI precision as well as rendering capabilities. This, along with t…
A basic question.. “What is the Garbage Collector?” The usual answer given back: “Garbage collector is a background thread run by the CLR for freeing up the memory space used by the objects which are no longer used by the program.” I wondered …
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.

708 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

19 Experts available now in Live!

Get 1:1 Help Now