I am having two picklist field in VF Page.Based on the 2nd picklist value i need to make the 1st picklist field mandatory, which works fine.,but the issue is once i selected the value in 2nd picklist then the value in 1 st picklist changed, it is not displaying the value I already selected.How can solve this issues. Please let me know what am I doing wrong here
Piklist 1:
<apex:pageBlockSectionItem >
<apex:outputlabel value="{!$ObjectType.Case.fields.Is_booking_with_Primary_Freight__c.label}" for="Request"/>
<apex:outputPanel id="panel1">
<apex:inputField value="{!cases.Is_booking_with_Primary_Freight__c}" required="{!if(reason == 'Rebook - Bring Booking Forward'||reason == 'Rebook - No Show'||reason == 'Rebook - Transport Company Issue'||reason == 'Rebook - Order was Rejected on initial delivery'||reason == 'Rebook - Vendor Issue'||reason == 'Rebook - BIG W Issue'||reason == 'Consolidate Orders',true,false) }"/>
</apex:outputPanel>
</apex:pageBlockSectionItem>
Picklist 2:
<apex:pageBlockSectionItem >
<apex:outputLabel value="Request Reason" />
<apex:actionRegion >
<apex:outputPanel styleClass="requiredInput" layout="block" id="pwPanel" >
<apex:outputPanel styleClass="requiredBlock"/>
<apex:selectList id="Request_Reason" size="1" value="{!reason}" label="Request Reason" required="true" style="width: 155px; " >
<apex:selectOptions value="{!reasons}" />
<apex:actionSupport event="onchange" reRender="panel1" />
</apex:selectList>
</apex:outputPanel>
</apex:actionRegion>
</apex:pageBlockSectionItem>