MVC Grid columns locked for edit but not for create?

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Jonathan asked on 14 Sep 2021, 04:59 PM


I have a situation where I have a number of columns that are supposed to be read only for editing.  However, I would like for the user to be able to enter in values for those columns when creating a new record.

Is this possible with Grid?

I have something like

    .Columns(column =>
         columns.Bound(o => o.model_id).Hidden();
         columns.Bound(o => o.supplier_id).Title("Supplier ID").Width(150)
         //...about 20 more columns
         columns.Command(command => { command.Edit(); command.Destroy(); }).Width(200).Locked();
   .ToolBar(toolbar => toolbar.create())
   .Editable(editable =>
    //... etc
    .DataSouce(dataSource => dataSource
          .Model(model =>
               model.Id(o => o.model_id);
               model.Field(o => o.supplier_id); //.Editable(false);
//and then just the remaining model fields and the create/read/etc functions

supplier_id (and a few others) I'd prefer to have as read_only (especially being a foreign key) but I need it available for create as ideally I'd have the user pick a supplier and under the hood it gives me the supplier_id foreign key.

I'd like to know if this is possible, because I have about 4-5 fields (and supplier_id is the only FK among them) that should be readonly for edit, but not for create.

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answered on 17 Sep 2021, 12:08 PM

Hello Jonathan,


Thank you for writing to us.

You can achieve this requirement using the .Events(e=>e.Edit("myFunction")) approach.

And once you are inside the edit handler function, you can use the e.model.isNew() to determine when to hide the field editors, as demonstrated here:

Feel free to give it a try and let me know if this helps you.

How can I assist you further to achieve what you are looking for?


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