InlineEditing on Visual Force Page

Controller:


public class testpagecontroller{
public List<account> acclst=new List<account>();
      public List<account> getaccounts(){
      acclst=[select name,industry,type from account];
      return acclst;
}
public void save1(){

       update acclst;

}

}
====VisualForcePage

<apex:page controller="testpagecontroller">
<apex:form >
<apex:pageBlock mode="inlineEdit">
<apex:pageBlockButtons >
<apex:commandbutton value="save" action="{!save1}"/>
</apex:pageBlockButtons>
<apex:pageBlockTable value="{!accounts}" var="a">
<apex:column Headervalue="Account Name">
<apex:outputfield value="{!a.name}"/>
</apex:column>
<apex:column headervalue="Industry">
<apex:outputfield value="{!a.industry}"/>
</apex:column>
<apex:column >
<apex:outputfield value="{!a.type}"/>
</apex:column>
</apex:pageBlockTable>
</apex:pageBlock>
</apex:form>
</apex:page>