How to display record in table fromat from salesforce object in visualforce?

Question

I am displaying record in table format using Visualforce but just titles are showing not records. what are my possible error.

Below is my code :::

<apex:page standardController="Patient__c">
    
    <apex:pageBlock title="Patient Records...!!!">
         <apex:pageBlockTable value="{!Patient__c}" var = "Pa" >
    
            <apex:column value = "{!Pa.Name}"/>
            <apex:column value = "{!Pa.Contact_Number__c}"/>
            <apex:column value = "{!Pa.Email__c}"/>
            <apex:column value = "{!Pa.Age__c}"/>
    
        </apex:pageBlockTable>
    </apex:pageBlock>  
</apex:page>

and Below is the output

Answer 1

• In your code you were directly accessing Patient__c and passing <apex:pageBlockTable as a value, a good practise would be adding a recordSetVar to <apex:page like a variable that holds the list of records to display and pass it to <apex:pageblockTable to use it.

• When you specify a recordSetVar attribute in a Visualforce page, you can use it to access the records from the standard controller or the custom controller, and then display the data in a table or other data-bound components on the page

Try this below Code

<apex:page standardController="Patient__c" recordSetVar="Patients">

<apex:pageBlock title="Patient Records...!!!">
<apex:pageBlockTable value="{!Patients}" var = "Pa" >

    <apex:column value = "{!Pa.Name}"/>
    <apex:column value = "{!Pa.Contact_Number__c}"/>
    <apex:column value = "{!Pa.Email__c}"/>
    <apex:column value = "{!Pa.Age__c}"/>

</apex:pageBlockTable>
</apex:pageBlock>
</apex:page>