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Pass HTML hidden field value in @HTML.BeginForm

user1633
1#
user1633 Published in June 20, 2018, 1:29 am

I want to pass a hidden field value on click of submit button into my action method. This needs to happen on click of a button which posts a file. Below is the Razor code for HTML form with Post method that accepts the file.

@using (Html.BeginForm("UploadProject", "Admin", FormMethod.Post, new { enctype = "multipart/form-data"}))
{
        <label id="lblProjectSize" hidden="hidden">Select Project size</label>
        <select id="ddlProjectSize">
            <option value="1">Large</option>
            <option value="2">Medium</option>
            <option value="3">Small</option>
        </select>
    <input type="hidden" id="hdnProjectSize" />
    <input type="submit" value="Upload Data" onclick="setHiddenVal()" />
}

This is the action method I have-

[HttpPost]
public async Task<ActionResult> UploadProject(string UploadProjectOption, int? ProjectId, HttpPostedFileBase PostedFile)
{
    //code here
}

I am able to access the file object in the action method but I am not sure how to pass an additional parameter through the submitted form.

As of I am setting the the hidden field value on click of submit button after which I need to access the hidden field value in the posted action method.

Script to set hidden field value-

function setHiddenVal()
{
    alert($("#ddlProjectSize :selected").val());
    $("#hdnProjectSize").val($("#ddlProjectSize :selected").val());
}

I don't wan't to use AJAX for this.

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