#Vb net errorprovider example manual
#Vb net errorprovider example code

Enabled – Indicates whether validation is enabled.

The failed validation will still be available programmatically through LastFailedValidationResults collection.

DisplayError – Indicates whether failed validation is reported or not.

Here is explanation for each property on validator in the order they are displayed in screen-shot above: Next, expand the Validator1 property to set validation properties:įigure 8 – Changing Validation Properties In this example we will choose “ Required Field Validator” which will ensure that text-box has value. Select control you want to assign validation to and change its Validator1 property to choose desired validation type.įigure 6 – Select control to set validation forįigure 7 – Choosing validation for input TextBox For example you can require the input for text-box and enforce the format to be an email by assigning Validation1 and Validation2 properties. You can assign one of these properties or all of them if you need to perform multi-level validation. Validation starts with Validator1, Validator2 and finally Validator3. These properties allow you to define 3 level validation for each control. SuperValidator control adds Validator1, Validator2 and Validator3 properties to each control on the form as shown in image below:

The Cancel event argument in Validating event for container will be set to false as well if validation fails. If validation fails all failures will be reported using ErrorProvider and Highlighter, if set. ValidatingEventOnContainer – Validating event will be handled on ContainerControl, by default the parent form, to perform validation.If validation fails it will use ErrorProvider and Highlighter that are set to indicate the error as well as cancel the focus move if CancelValidatingOnControl property is set to true (default value) ValidatingEventPerControl – For each control that is being validated the SuperValidator will handle its Validating event and perform validation.

#Vb net errorprovider example manual

Manual – You perform validation by calling SuperValidator.Validate method.That is done by setting ValidationType property as shown in image below:įigure 4: ValidationType property setting Next step is to choose the way SuperValidator performs validation. SuperValidator can work with any of these components set or without any of them at all if you are planning to report validation results some other way. Highlighter component to visually highlight input field with error using distinctive border.ErrorProvider component to display the error state and tooltip message next to each input field.Notice that when SuperValidator component is added to the form it automatically creates two supporting components: To start using validations components, first drop the SuperValidator component from VS.NET toolbox onto your form:įigure 2: SuperValidator Component in VS.NET Toolboxįigure 3: SuperValidator added to VS.NET Form Here is screen-shot that shows simple validation performed on the form using SuperValidator and Highlighter controls included with DotNetBar:įigure 1 – SuperValidator Control in action

#Vb net errorprovider example code

DotNetBar SuperValidator is the component set that helps you implement validation of user input in your WinForms applications without writing any code for most common validation scenarios.