Datasource return nothing

Question

Hi experts!
If a datasource return no record how I can check this ?? using if condition
And display an error message

Answer 1

Hi.
Try this. It works for me.
Use a counter to see how many records the datasource have.
example.
<jbo:DataSource id="dsClients" appid="LoginModule" viewobject="RctClientesView1" />
<jbo:SetWhereClauseParam index="0" value="<%=strTip%>" datasource="dsClients" />
<!--use this LINE BELOW if you have the data source after a post operation. VERY IMPORTANT-->
<jbo:RefreshDataSource datasource="dsClients" />
<jbo:RowsetNavigate datasource="dsClients" action="first" />
<% int i;
i=0;
%>
<jbo:RowsetIterate datasource="dsClients" >
     <%i+=1;%>
</jbo:RowsetIterate>
<%
if (i>=1){%>
     <!-- when hare more than one record, put your code here.-->
     <!-- You can change the if statement to what ever you like-->
<%}else{%>
     <!-- when the datasource has no records, put your code here.-->
<%}%>