Multiple checkboxes in razor (using foreach)

Question

I have a problem and I can\'t find solution. I\'m using Razor and it is my VieModel class.

public class GroupToExport
{
    public GroupToExport()
    {
             


        

Answer 1

You cannot use a foreach loop to generate controls for a collection. The html you're generating for each checkbox (and for the associated hidden input) is . Your model does not contain a property which is named item.

Use a for loop

@for(int i = 0; i < Model.ExportingGroups.Count; i++)
{
  
    
      @Html.CheckBoxFor(m => m.ExportingGroups[i].ToExport)
    
  
}

Now your HTML will be

etc. which will correctly bind to your model

Edit

Alternatively you can use a custom EditorTemplate for typeof GroupToExport. Create a partial view /Views/Shared/EditorTemplates/GroupToExport.cshtml

@model yourAssembly.GroupToExport

  
    @Html.CheckBoxFor(m => m.ToExport)
  

And then in the main view

@Html.EditorFor(m => m.ExportingGroups)

The EditorFor() method will generate the correct html for each item in your collection based on the template.