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MVC Razor how to get option value from form and set viewmodel property to selected value


MVC Razor how to get option value from form and set viewmodel property to selected value

By : sreddivari
Date : November 22 2020, 04:01 AM
Does that help The issue you are having is linked to the fact that no values are being sent to the controller. The following :
code :
<option>@station.Name</option>
//Assuming that your station class has an id
<option value = "@station.id">@station.Name</option> 
<select id="stationId" asp-for="stationId" asp-items=@(new SelectList(Model.Stations, "stationId", "Name")) class="form-control"></select>


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I want the last selected option to be selected in my <select> form after the user selected the option

I want the last selected option to be selected in my <select> form after the user selected the option


By : Luis Antonio Domingu
Date : March 29 2020, 07:55 AM
I wish did fix the issue. , Here you go:
code :
<?php

    if (isset($_REQUEST['choice'])) {

        $selected_choice = $_REQUEST['choice'];

    }
    else {

        $selected_choice = "none";

    }

?>

<html>
<head>
</head>
<body>

<form method="get" action="">
    <select name="choice" size="1" onchange="this.form.submit()">
        <option value="a" <?php if($selected_choice == "a"){ print "selected='selected'"; } ?> >a</option>
        <option value="b" <?php if($selected_choice == "b"){ print "selected='selected'"; } ?> >b</option>
        <option value="c" <?php if($selected_choice == "c"){ print "selected='selected'"; } ?> >C</option>
    </select>
</form>

</body>
</html>
ASP.NET Razor ViewModel property is modified somewhere

ASP.NET Razor ViewModel property is modified somewhere


By : Liu
Date : March 29 2020, 07:55 AM
around this issue Ok, it was AGAIN the ModelState - as you can see in the code above - the parameter to the function is called "username" but it's actually the userId. And since there is already the parameter username, it is stored in the ModelState and when I call
code :
@Html.EditorFor(model => model.UserName)
Set selected option in dropdownlist razor

Set selected option in dropdownlist razor


By : F.Ilgiz
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further If you need to select an option by default when the view is rendered then you need to set the Model.BeslutsinformationstypId property before returning the view like below:
code :
var model = // My model instantiation
// He set some properties if you want
model.BeslutsinformationstypId = 320;

return View(model);
@{
     Model.BeslutsinformationstypId = 320
}
@Html.DropDownListFor(m => Model.BeslutsinformationstypId, VardemangderHelper.BeslutsInformationsTyperForInteckningarGetList(), new { @class = "form-control")})
Razor view disabled html attribute based on viewmodel property

Razor view disabled html attribute based on viewmodel property


By : user2775773
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Html disabled attribute not need set a value, if you set disabled="true" or disabled="false" both ways gonna disabled just because have the disabled attribute and that's why razor when its false remove the attribute
see the reference
code :
<input type="text" disabled="true" value="true">
<input type="text" disabled="false" value="false">
<input type="text" disabled value="just attribute">
<input type="text" value="without attribute">
How to reference property in ViewModel from Razor view

How to reference property in ViewModel from Razor view


By : Lakshmi Neemtec
Date : March 29 2020, 07:55 AM
I wish this help you Your view is strongly typed to a collection of vmAppointment, not a single vmAppointment. So in order to reference the Title you're gonna have to loop through the elements of this collection. For example:
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