Questions on UI for ASP.NET Core Forum

2 questions

1 answer

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Hello,

I'm looking to see if its possible to have the validation on one item in a form be dependent on another inputs selection.

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        @(Html.Kendo().Form<EquipmentViewModel>()
            .Name("EquipmentForm")
            .Layout("grid")
            .Items(items =>
            {
                items.AddGroup()
                    .Label("Registration Form")
                    .Items(i =>
                    {
                        i.Add()
                            .Field(f => f.EquipmentType)
                            .Label(l => l.Text("Equipment Type"))
                            .Editor(e =>
                            {
                                e.DropDownList()
                                    .DataTextField("ShortName")
                                    .DataValueField("EquipmentTypeID")
                                    .OptionLabel("Select")
                                    .DataSource(source =>
                                    {
                                        source
                                            .ServerFiltering(true)
                                            .Read(read => { read.Url("/Equipment/Index?handler=EquipmentTypesByEquipmentClassID").Data("EquipmentClassData"); });
                                    })
                                    .Enable(isControlEnabled)
                                    .Events(e => { e.Change("OnChangeEquipmentTypeChange").DataBound("OnChangeEquipmentTypeChange"); })
                                    .CascadeFrom("EquipmentClass");
                            });
                        i.Add()
                            .Field(f => f.EquipmentDesign)
                            .Label(l => l.Text("Equipment Design"))
                            .Editor(e =>
                            {
                                e.DropDownList()
                                    .DataTextField("ShortName")
                                    .DataValueField("EquipmentDesignID")
                                    .OptionLabel("Select")
                                    .DataSource(source =>
                                    {
                                        source
                                            .ServerFiltering(true)
                                            .Read(read => { read.Url("/Equipment/Index?handler=EquipmentDesignByEquipmentTypeID").Data("EquipmentTypeData"); });
                                    })
                                    .CascadeFrom("EquipmentType")
                                    .Enable(false)
                                    .Events(e => { e.Change("OnChangeEquipmentDesignChange").DataBound("OnChangeEquipmentDesignChange"); });
                            });
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This scenario loads EquipmentDesigns based on the EquipmentType the user has selected. I would like EquipmentDesigns to be required ONLY if the selected equipment type has equipment designs. In other words, only when the call to get the EquipmentDesigns actually returns data.