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[X++] Lookup on temp table on form control

Let's assume there is a temporary table of type "InMemory" as a datasource on a form and you want to create a lookup on a control on the same form.

public void lookup()
{
    SysTableLookup              sysTableLookup = SysTableLookup::newParameters(tablenum(TmpTableFieldLookup), this);
    Query                       query = new Query();
    QueryBuildDataSource        queryBuildDataSource;
    ;
        queryBuildDataSource = query.addDataSource(tablenum(TmpTableFieldLookup));
        
    sysTableLookup.addLookupfield(fieldnum(TmpTableFieldLookup, TableName), true);   

    sysTableLookup.parmQuery(query);
    // DataSource on form with populated data via .setTmpData():
    sysTableLookup.parmTmpBuffer(TmpTableFieldLookup);
    sysTableLookup.performFormLookup();
}
[X++] Lookup on temp table on form control
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