Display list in visualforce page

you can try doing as below:

Apex :

public Boolean showRecords{get;set;}<br>public List<CustomObject__c> cust {get;set;}<br>//In constructor<br>showRecords =false;<br>public void fetchRecords(){
cust = [Select Field1__c, Field2__c from CustomObject__c limit 1000];// you need to place a limit of 1000 as VF supports max of 1000 recors to be displayed<br>showRecords = true;<br>}

VFP:

<apex:pageblock><br><apex:commandButton value="List Records" action="{!fetchRecords}" rerender="pbTable"/>
<apex:pageblocktable value="{!cust}" var="a" id="pbTable" rendered="{!showRecords}">
<apex:column value="{!a.Field1__c}"/>
<apex:column value="{!a.Field2__c}"/>
</apex:pageblocktable >
</apex:pageblock>