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IList.hasData

Checks whether this list contains any data.

Syntax

public boolean 
hasData()

Description

The hasData method checks whether a list has any data. To avoid any potential internal state inconsistencies, you should always check the list to determine if it contains any data prior to manipulating it.

Returns

Returns true if the list contains data, false if it is empty.

Example

String apath = node;
IList ilist = ics.GetList("TreeManagerTest");
if(ilist.hasData())
{
    int r = ilist.numRows();
    String values;
    for(int i = 1; i <= r; i++)
    {
        try{
            ilist.moveTo(i);
            values = ilist.getValue("nid");
            apath = apath+":"+values;
        } catch(NoSuchFieldException e){System.out.println(e);};
    }
}
return apath;

 

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