# RegularExpressionValidator

Adds support for \[System.Web.UI.WebControls.RegularExpressionValidator] [<mark style="color:orange;">https://docs.microsoft.com/en-us/dotnet/api/system.web.ui.webcontrols.regularexpressionvalidator?view=netframework-4.8</mark>](https://docs.microsoft.com/en-us/dotnet/api/system.web.ui.webcontrols.regularexpressionvalidator?view=netframework-4.8)

Allows to validate if a value in an input control to validate matches with the pattern specified in the regular expression validator.

### **Implementation Details:**

**Component Selector:** ‘wm-regular-expression-validator’

**Kendo UI Component:** <mark style="color:orange;">N/A</mark>

## **Class inheritance**

RegularExpressionValidatorComponent extends [<mark style="color:orange;">BaseValidatorComponent</mark>](/webmap/general/frontend/documentation/webforms-angular-components/web-components/base-components/basevalidator-component.md)

## **PME Support**

### **Properties**

| **Property**                | **Get/Set** | **Details**                                                                                                                                      |
| --------------------------- | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| ControlToValidate: string   | Yes         | ID of control to validate                                                                                                                        |
| ValidationExpression:string | Yes         | Pattern used to validate control to validate                                                                                                     |
| ErrorMessage:string         | Yes         | Message showed  in validator if value pattern is not  the same than pattern assigned in ValidationExpression property and text property is empty |
| Text:string                 | Yes         | Message showed  in validator if value pattern is not  the same than pattern assigned in ValidationExpression property.                           |
| Display:ValidatorDisplay    | Yes         | Enum property with options Static,None,Dynamic                                                                                                   |
| ValidationGroup:string      | Yes         | If is established the name of the validationgroup component only will validate controls with the same validationgroup associated                 |
| Hidden:boolean              | Yes         | Establishes if the validator shows or is hides                                                                                                   |

### &#x20;**Methods**

| **Methods**     | **Details**                                                                                    |
| --------------- | ---------------------------------------------------------------------------------------------- |
| validateControl | Verify if value in control to validate match with the assigned pattern returning Boolean value |
| displayMesssage | Shows value of text property or ErrorMessage property in case text property is empty           |

&#x20;


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.gapvelocity.ai/webmap/general/frontend/documentation/webforms-angular-components/web-components/kendoui-components/regularexpressionvalidator.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.