Hi, i'm a really Strataframe beginner (in english too) and i learn for 3 weeks on the c-sharps sample (great thanks for that !! )
my first really big problems is to have a form with data bind on a table (name: Championnat), this form contain a dropdownlist bind on a key from a child table (name: TypeChampionnat)
here it is
PopulationType="BusinessObject" Width="175px"
BusinessObjectName="BOChampionnats" BindingField="c_TypeChamp">
displayfieldnamesalternate="Libelle|" dropdownformatstring=""
formatstring="{0}" methodtoexecute="FillTypeChampionnat;" valuemember="Code">
c_TypeChamp: the foreign key
FillTypeChampionnat: the method that fill the list
When i try to add() a new record in the business object it raise an exception
[ArgumentOutOfRangeException: 'lstTypeChampionnat' a un SelectedValue qui n'est pas valide, car il n'existe pas dans la liste des éléments.
Nom du paramètre : value]
System.Web.UI.WebControls.ListControl.set_SelectedValue(String value) +1827626
i know it's "normal" because the field c_TypeChamp is null
i know i can set a default value in the method "_SetDefaultValues()" BUT i don't want to set a default value
so what can i do ??
a solution in asp.net forum is to populate manualy the dropdownlist with a default "-1" value with
AppendDataBoundItems="True"
and
ListItem Selected="True" Text="" Value="-1"
but it generate the error
Générer (web): Vous ne pouvez pas utiliser la collection par défaut 'Items' de MicroFour.StrataFrame.UI.Web.DropDownList sans les balises de propriété lorsque vous utilisez une version filtrée de la même collection.
thanks for your help
and thanks to Michel Levy to introduce me to strataframe
