Item "Locale" does not exist in collection

sideline

am using the Search command

when i hit the cancel button or close the form - get Exception with message of "Item 'Locale' does not exist in collection

This occurs in the line
searchresults = (IManage.IManDocuments)context.Item("SearchedNRTDocuments");

any ideas on how i can trap this ??
(apart from catching the exception ??)


*** CODE EXTRACT ***
IManage.IManDocuments searchresults;
IManage.IManProfileSearchParameters searchparams;

IManage.IManDMS dms = new IManage.ManDMSClass();
IManage.IManSession sess = dms.Sessions.Add("999.999.999.9");
sess.Login("testuser1","testuser1");

SearchCmd scmd = new SearchCmdClass();
ContextItems context = new ContextItemsClass();

context.Add("ParentWindow", this.Handle.ToInt32());
context.Add("NRTDMS", dms);
context.Add("SelectedIManSession", sess);

scmd.Initialize(context);
scmd.Update();

if (scmd.Status == (int)CommandStatus.nrActiveCommand)
{
scmd.Execute();
searchresults = (IManage.IManDocuments)context.Item("SearchedNRTDocuments");
searchparams = (IManage.IManProfileSearchParameters)context.Item("IManSearchParameters");

// Show results in a doc grid.
IIntegrationDlg.DocOpenDlg dlg = new IIntegrationDlg.DocOpenDlgClass();

// Set properties on dialog object
dlg.NRTDMS = dms;
dlg.SingleSel = false;
dlg.ShowContainedDocuments = searchparams;

etc
.........
etc

jny

The ContextItem, "IManExt.Refresh", returns a Boolean value after the command has been executed. It returns False if the command was not successfully executed; thus you may use that to gracefully skip the code that queries for the search results and parameters which are only available if the search was executed. Like so:

if (scmd.Status == (int)CommandStatus.nrActiveCommand)
{
scmd.Execute();
bool brefresh = (bool)context.Item("IManExt.Refresh");
if (brefresh == true)
{
searchresults = (IManage.IManDocuments)context.Item("SearchedNRTDocuments");
searchparams = (IManage.IManProfileSearchParameters)context.Item("IManSearchParameters");
}

}