# setFieldValue

## Parameters

1. controlId => Id of the control
2. value => The value, you want to set. This could be a number, a date, a string (depending on the control type of course). setFieldValue will do all the conversions for you.

## Example Usages

1\. Simple textbox

```javascript
app.setFieldValue("myControlId", "Hello World!");
```

2\. With a variable

```javascript
let myText = "Hello World!";
app.setFieldValue("myControlId", myText);
```

3\. Setting a date

```javascript
app.setFieldValue("myDateControl", "2019-01-31"); //This is the format, you would get by getFieldValue
app.setFieldValue("myDateControl", new Date()); //This will set todays date.
app.setFieldValue("myDateControl", new moment().add(1, "month")); // you can use moment to set calculated dates. See https://momentjs.com/ for more details and examples
```

4\. Setting a date to a calendar control scrolls to that date.

```javascript
app.setFieldValue("myCalendarControl", "2019-01-31");
```

5\. The Calendar supports subcontrols to set. You can add resource(s) to the calendar for example:

```javascript
//resources will delete all and set a new array of resources
app.setFieldValue("myCalendarControl.resources", [
  {
    id: 1,
    title: "Room A",
  },
  {
    id: 1,
    title: "Room B",
  },
]);

//resource will add a single resource
app.setFieldValue("myCalendarControl.resource", {
  id: 1,
  title: "Room A",
});
```

## Demo

{% embed url="<https://youtu.be/MRnw31QAt0M>" %}

### Return Values

The function handles various types of controls and returns the updated field value after performing the necessary operations. If the control doesn't exist, it returns null. See demo.