What is the correct syntax for appending HTML with JS function?

Question

In my Entity Framework .NET MVC app I want to append a new row to a table with JS but I want to be able to do data validation. Therefore I need to use Html.EditorFor.

This is the current JS code:

$("#add_btn").on('click', function (e) {
        var table = $("#element_table");
        var idx = $(table).find("tbody>tr").length;
        var htmlToAppend = `<tr>
                                <td><input name="item.Elements[${idx}].Name" id="Elements[${idx}].Name" /></td>
                                <td><input name="item.Elements[${idx}].Quantity" id="Elements[${idx}].Quantity" /></td>
                            </tr>`;
        $("#element_table").append(htmlToAppend);
    });

I want to have something like this:

var htmlToAppend = `<tr>
                        <td> @Html.EditFor(model => model.Elements[${idx}].Name </td>
                        <td> @Html.EditFor(model => model.Elements[${idx}].Quantity</td>
                    </tr>`

But I can't find the correct syntax.

Mohammad Amin Pourmoradian · Accepted Answer · 2020-05-19 10:22:10Z

1

you can't use razor without render view.

best way for this problem you can use html code. example:

$('tr#id td:first').append($('<input type="text" id="textfield" name="fieldName" value="your value" />'));

or try it:

pass your item of model to an action with ajax request and create an action then return a partial view:

public ActionResult yourAction(Model model)
{
    return PartialView(model);
}

and insert your razor code in this view:

@Html.EditFor(model => model.Elements[${idx}].Name
@Html.EditFor(model => model.Elements[${idx}].Quantity

answered May 19, 2020 at 10:22

Mohammad Amin Pourmoradian

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