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I'm trying to read an integer value from the controller and render it as a checkbox in my Visual force page. If 1 render it as checked and if 0 render it as unchecked. I get a compilation error Unknown property 'readValue'. If I simply did a apex:inputcheckbox selected="true" it doesn't work either. 

    <apex:datatable value="{!classRows}" var="class" id="classTable"
        <apex:inputhidden value="{!class[column01.FieldName]}" id="hvl01" rendered="true" />
        <apex:variable var="readValue" value="{!IF(class[column01.FieldName]=1,true,false)}" id="testread" />
        <apex:outputtext value="{!readValue}" />
        <apex:inputcheckbox selected="{!readValue}" id="chk01" />
     </apex:datatable>
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    Do you have a public Boolean attribute in your controller called readValue? i.e: public Boolean readValue {get;set;} Also you need to set the merge field as the value in the input checkbox <apex:inputCheckbox value="{!readValue}"> Commented Sep 9, 2018 at 8:30
  • @Ranga Thank you so much! I added the ReadValue getter setter in the controller Commented Sep 9, 2018 at 17:26

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Please make sure that you have a boolean attribute defined in your controller named readValue.

Controller:

...
public Boolean readValue {get;set;}
...

Also in your page set the value of the input checkbox as follows:

Page:

...
<apex:inputCheckbox value="{!readValue}">
...
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