Afternoon All, 

I am trying to save my VF page but i am getting the following error "Error: Unknown property 'testWrapper.materialWrapper.select' ". 

Aim - The user will go to the sales_and_marketing__c object ,scroll down to the Materials_Junction related list. click "new", this should then call the VF page listed below. and return all the records from the Materials object which are active (Crtieria in Class). The user then selects the Materials, fills in quantity. When the User Saves this should then be mapped back to the sales_and_marketing__c object

Really appreciate your help 

I have the following Controller : 

public with sharing class testWrapper
{
    public List<Materials__c> Materials {get;set;} 
    public List<materialWrapper> materialWrapperList {get;set;} 
    
    public testWrapper()
    {
        Materials = [select ID,name,Product__c, Item__c,Quanity__c, Active__c from Materials__c where Active__c =true limit 10];
        for(Materials__c obj : Materials)
        {
            materialWrapper tempObj= new materialWrapper();
            tempObj.recordId = obj.id;
            tempObj.name = obj.name;
            tempObj.product = obj.Product__c;
            tempObj.item = obj.Item__c;
            tempObj.quantity = obj.Quanity__c;
            tempObj.selectB = false;
            materialWrapperList.add(tempObj);
        }
    }

    //save method
    public void save()
    {
        list<Materials_Junction__c> recordToInsert = new list<Materials_Junction__c>();
        
        for(materialWrapper obj : materialWrapperList)
        {
         Materials_Junction__c temp ;
            if(obj.selectB == true)
            {
                temp = new Materials_Junction__c();
                temp.sales_and_marketing__c = '01I20000000rV6V';
                temp.Materials__C= obj.recordId;
                temp.quantity__C = obj.quantity; 
            }
            recordToInsert.add(temp);
        }
        insert recordToInsert;
    }
    
    
    public class materialWrapper
    {
        public string recordId {get; set;}
        public string name {get; set;}
        public string product {get; set;}
        public string item {get; set;}
        public Decimal quantity {get; set;}
        public boolean selectB {get; set;}
        
        public void materialWrapper()
        {
            recordId = '';
            name = '';
            product = '';
            item = '';
            quantity = 0.0;
            selectB = false;
        }
    }
}

Visual Force Page :

apex:page controller="testWrapper">
<apex:form >
    <apex:pageBlock title="Select Product">

        <apex:pageBlockButtons >
            <apex:commandButton value="Save" action="{!save}"/>
        </apex:pageBlockButtons>

        <apex:pageBlockTable value="{!materialWrapperList}" var="MKT"> 
            <apex:column value="{!MKT.select}"/>
            <apex:column value="{!MKT.name}"/>       
            <apex:column value="{!MKT.Product}"/>
            <apex:column value="{!MKT.Item}"/>
            <apex:column headerValue="Quanity">
                <apex:inputField value="{!MKT.Quanity}"/>
            </apex:column>

        </apex:pageBlockTable>

    </apex:pageBlock>
</apex:form>