C textbox validating event
Length See this private void txt Code_Validating(object sender, System. "Dan Dan Dan" Hello to all I'm handling the Validating event for one text box.
When the text in the txt Code control be more than 5 chars, the messagebox will show only once. Length See this private void txt Code_Validating(object sender, System.
There is an event Validating that can be used on Text Box that are very useful but there are also an event named Validated that I can't find much use of.
Have you see any useful times where this event Validated can be used ?
//Tony Hi Tony, Validated can be used to perform validating code that shouldn't be run if Cancel is set in the Validating event.
Granted, you could just put the code in an if block in the Validating event as well, but separating the code to Validated allows cleaner code. There is an event Validating that can be used on Text Box that are very useful but there are also an event named Validated that I can't find much use of.
In that case you should also somehow tell the user that there’s a problem with the field. For example, if the user presses Tab, clicks on another control, presses Enter to trigger the Accept button, or presses Esc to trigger the Cancel button.
Find the below sample screen shot for validating the fields before saving the data Img 3: Validation method Here I have validated the fields using the Boolean method, If all the field values are entered properly it will return true, other wise it will return false and will display an error message.So before saving data, I want to validate whether all the required fields are filled (Text Boxes) by the user. I would rather use a generic function that would be passed each control on the form and based on the type of the control, separate validation logic would be written.