Displaying values from map in VF page

I'm trying to display some values in a data table and am getting the following error:

Incorrect parameter for subscript. Expected java.lang.Class, received Text

The VF code is as follows:

    <apex:datatable value="{!bom}" var="cmps" width="650px" border=".5px">
    <apex:column headerValue="Top Level Product" >
            <apex:outputField value="{!cmps.Top_Level_Product__c}"/>
        </apex:column>
        <apex:column headerValue="Top Level Product" >
            <apex:outputField value="{!cmps.Top_Level_Product__r.ProductCode}"/>
        </apex:column>
        <apex:column headerValue="Manufacturer's Part Number">
            <apex:outputField value="{!cmps.Component__r.Product_Code__c}"/>
        </apex:column>
        <apex:column headerValue="Quantity" style="text-align:center;">
            <apex:outputField value="{!pcQty[cmps.id]}"/> 
        </apex:column>  
        <apex:column headerValue="Description">
            <apex:outputField value="{!cmps.Component__r.Component_Description__c}"/>
        </apex:column>
</apex:datatable>

I am not sure how to solve this so that the quantity value in my map is displayed instead.

Thanks for your help.

JoAnn

April 6, 2012
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Best Answer chosen by Admin (Salesforce Developers)

Chamil Madusanka
Refer following link. This is a good example for dynamic Map binding from Bob

http://bobbuzzard.blogspot.com/2011/03/visualforce-dynamic-map-bindings.html

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