Using IDataErrorInfo and setting Validation.HasError style
- by Gaurav
In WPF using IDataErrorInfo and Style I want to create form where I can provide end user three different status while validating data
To make the scenario more clear
1) I have textbox next to it I have icon which provides end user what kind of input textbox expects - Initial status with information icon
2) As soon as user enter data it validates it and decides whether it is valid or not
- most of the time it will show cross (X) icon saying invalid data
3) As it is validating on UpdateSourceTrigger="PropertyChanged" it will turn cross icon to green check mark as soon as it gets validated
i.e
[ ] i (tooltip- Any valid user name )
[Ga ] X (tooltip- Invalid user name. Must be 5 char long)
[Gaurav ] * (it will show only correct icon, meaning valid value)
How can I achieve this using IDataErrorInfo and Style, I tried doing that but as soon as my form gets loaded it invalidates all the data and shows cross icon at the first time. I want to show different tooltip and different icon for three states (Initial info, Invalid data, Valid data)
