CODEWITHSUNDEEP
salesforceapex
Rv1
Rv1

Reputation: 185

Unable to get the value of the Commandbutton by Clicking on it at apexclass

VF code:

<apex:repeat value="{!strings}" var="stringer" id="theRepeat">

<apex:CommandButton value="{!stringer}" id="theValue"style="padding:10px;spacing:10px"  action="{!repeatFunction}">
<apex:param name="paramValue" value="{!stringer}"/>
</apex:commandButton>
</apex:repeat>

Apex Class Code:

public String[]  getStrings() {
     return new String[]{'ONE','TWO','THREE'};

}
public String ButtonNum {get;set;}
public void repeatFunction() {
    ButtonNum = apexpages.currentpage().getparameters().get('stringer');
    ApexPages.addMessage(new ApexPages.Message(ApexPages.severity.Info,'num'+ButtonNum ));

}

Hi Everyone, I want to display the value of the button by using repeat function. Above is my code and i'm unable to display the button values respectively.

Thanks in advance.

Upvotes: 0

Views: 360

Answers (1)

NullReferenceException
NullReferenceException

Reputation: 1639

Use Name attribute value in the controller

 ButtonNum = apexpages.currentpage().getparameters().get('paramValue');

OR

You can use assignTo attribute of apex:param it gives value in controller:

<apex:page controller="test">
  <apex:outputPanel id="msg">
      <apex:messages />
  </apex:outputPanel>
  <apex:form >
     <apex:repeat value="{!strings}" var="stringer">
        <apex:commandButton value="{!stringer}" id="theValue"  action="{!repeatFunction}" reRender="msg">
          <apex:param name="paramValue" value="{!stringer}" assignTo="{!ButtonNum}"/>
       </apex:commandButton>   
      </apex:repeat>
  </apex:form>
</apex:page>

Apex Class :

public class test
{
  public String[]  getStrings() 
  {
      return new String[]{'ONE','TWO','THREE'};
  }
  public String ButtonNum {get;set;}
  public void repeatFunction()
  {  
     ApexPages.addMessage(new ApexPages.Message(ApexPages.severity.Info,'num :'+ButtonNum ));    
 }
}

Hope it helps you

Upvotes: 1

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