It seems like the maskedtextbox would be able to handle this type of input without using the keypress events to alter the text. NET Video Tutorials | Login Form using backend database (. NET | Encrypt/Decrypt data in SQL Server 2005 using SQL statements | Writing Managed Stored Procedures in SQL Server 2005 | FREE .A , DCSE, e-Biz , i-Net , MCDST, MCP, Network , Security , A. NET Calendar Control | Useful Win Form Controls | Regular Expression (Regex) Library | Backup/Restore SQL Server 2005 Database using code | Verify SQL Server 2005 database backup using SMO | Backup SQL Server 2005 database using SMO | Restore SQL Server 2005 database using SMO | Use Fx Cop from Microsoft to aid with code optimization The Masked Text Box is not a panacea because it requires a fixed length mask. Just use a Numberic Up Down with the Decimal Places property set to 2 or a regular Text Box and validate it for currency: Why is my data not saved to my database? NET using Visual Basic 2010 Express.) If the user manually entered a "$" into the textbox there an unhandled exception would result.
Please review the stack trace for more information about the error and where it originated in the code. Format Exception: Input string was not in a correct format.
to avoid any erroneous data to be inserted into the database. So let us learn some basics because I have written this article only focusing on beginners and students. Example I hope you now understand the basics of validation in Java Script, now let us create the one sample web application that demonstrates how to do validation.
The required field validator knows how to validate, the regular expression validator knows how to validate by its “Validation Expression” property.
But the custom validator don’t know how to validate.
| MSDN Data Walkthroughs VBForums Database Development FAQ My Code Bank Submissions: VB | C# My Blog: Data Among Multiple Forms (3 parts) Beginner Tutorials: VB | C# | SQL I found the above code by jmcilhinney to be very helpful. I eventually fixed this by adding one line of code into the Sub Textbox1_Validating(...).
The line I added comes after the first line in the Sub Textbox1_Validating If you follow the Code Bank link in my signature you'll find a link to my Numeric Text Box thread, which provides a custom Text Box control that was written much more recently than the post here to handle just about any numeric format, including currency.
And both the password and username are checked for both minimum and maximum lengths.
Sometimes, we may have a requirement to open the application developed, to be opened in full screen mode. It will by pass the message prompted “The Web page you are viewing is trying to close the window” Do you want to close this window?
Server Side Validation Validation done at the server level after sending the form data to the server but before entering the data into the database is called server-side validation. The first page source code Look at the preceding source code closely; see the id's of controls that play the important role in Java Script validation by reading the ASP. The design view of the preceding source code will look as in the following: I hope you have created the same form as above for demonstration purposes. Net controls values in Java Script are as: There are three main methods shown in the above image in the red square to read the ASP.