Hello,

Thank you for reaching out with your query regarding setting multiple initial selected items in the Infragistics MVC Combo box with multi-selection enabled.

To achieve this using the MVC helpers provided by Infragistics, you can utilize the InitialSelectedItems method. This method accepts an array of objects where each object specifies either an index or a value property to indicate which items should be initially selected.

Here’s an example of how you can implement this in your MVC view:

@(Html.Infragistics().ComboFor(item => item.EmployeeID)

    .Width("270px")

    .DataSource(Url.Action("data-source"))

    .ValueKey("ID")

    .TextKey("Name")

    .MultiSelectionSettings(ms =>

    {

        ms.Enabled(true);  // Ensure multi-selection is enabled

    })

    .InitialSelectedItems(new[]

    {

        new { index = 0 },  // Replace with actual indices or values you want to select

        new { index = 1 },

        new { index = 2 }

    })

    .DataBind()

    .Render()

)

In this example:

• .MultiSelectionSettings(ms => { ms.Enabled(true); }) ensures that multi-selection is enabled for the combo box.
• .InitialSelectedItems(new[] { ... }) specifies the array of objects where each object defines either an index or a value to select the initial items.
• Replace index values (0, 1, 2 in the example) with the actual indices or values from your data source that you want to be selected initially.

Please adjust the ValueKey and TextKey parameters to match the properties of the objects in your data source.

If you require any further assistance on the matter, please let me know.

Regards,

Georgi Anastasov

Entry Level Software Developer

Infragistics

Hello Georgi,

I cannot find the InitialSelectedItems method in the MVC API. You probably mean ComboInitialSelectedItems?
https://www.igniteui.com/help/infragistics.web.mvc~infragistics.web.mvc.combowrapper~comboinitialselecteditems
According to your documentation this does not accept an array of objects