Set controller variable/properties from JavaScript

By | February 4, 2014

Sometimes we need to pass values to apex code or assign the controller properties in JavaScript.

Here is the trick that we can use to set a value to an apex variable/properties from JavaScript code using <apex:inputTextarea>  tag in Visualforce Page.

<apex:inputTextarea id=”setDataStringValue” value=”{!setDataStringValue}” styleClass=”exampleDataToSetVariable” style=”display:none;”/>

We will set the value ‘data’ in JavaScript function to controller side property called setDataStringValue.

$(“. exampleDataToSetVariable”).val(data);

The above code will set the value of ‘setDataStringValue’ variable to ‘data’.

public String setDataStringValue { get; set;}

This will help in cases wherein we have most of the Visual force page functionality in JavaScript.

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