html.hiddenfor

HTML.HiddenFor value set

由 ＊爱你＆永不变心＊ 提交于 2020-01-20 15:22:06
问题 @Html.HiddenFor(model => model.title, new { id= "natureOfVisitField", @value = '@Model.title'}) it doesen't work! how to set the value? 回答1: You shouldn't need to set the value in the attributes parameter. MVC should automatically bind it for you. @Html.HiddenFor(model => model.title, new { id= "natureOfVisitField" }) 回答2: For setting value in hidden field do in the following way: @Html.HiddenFor(model => model.title, new { id= "natureOfVisitField", Value = @Model.title}) It will work 回答3:

What does Html.HiddenFor do?

由 馋奶兔 提交于 2019-12-27 13:58:46
问题 Although I have read the documentation on Html.HiddenFor, I've not grasped what is it used for... Could somebody explain its uses and give a short example? Where should those helpers go in the code? 回答1: It creates a hidden input on the form for the field (from your model) that you pass it. It is useful for fields in your Model/ViewModel that you need to persist on the page and have passed back when another call is made but shouldn't be seen by the user. Consider the following ViewModel class

How can i set Default value for HiddenFieldFor In Asp.Net MVC

由 旧巷老猫 提交于 2019-12-10 16:28:45
问题 i am using HiddenFor with model binding which is binding value to it. i want to reset the binded value to zero.How can i do it? i tried this but it is not working... <% foreach (var item in Model ) { %> <%: Html.HiddenFor(model => model.ID,new { @value="0"})%> <% } %> 回答1: You can create your own helper extension for that: public static MvcHtmlString HiddenFor<TModel, TProperty>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TProperty>> expression, object value, object htmlAttributes

hiddenFor helper is pulling id from action parameter, not the viewModel

由 痴心易碎 提交于 2019-12-07 15:41:09
问题 I've stumbled upon a really weird situation with ASP.Net MVC, passing an "id" as an action parameter and an "id" hidden form element. I have an action that has an "id" parameter. This id value represents a project. I have a controller action where I'm creating a data entry form for assigning an employee to the passed in project (I create a drop down list where administrator selects an employee to be assigned to passed project). By assigning an employee to a project, I create a ProjectEmployee

hiddenFor helper is pulling id from action parameter, not the viewModel

由 ぃ、小莉子 提交于 2019-12-06 02:30:35
I've stumbled upon a really weird situation with ASP.Net MVC, passing an "id" as an action parameter and an "id" hidden form element. I have an action that has an "id" parameter. This id value represents a project. I have a controller action where I'm creating a data entry form for assigning an employee to the passed in project (I create a drop down list where administrator selects an employee to be assigned to passed project). By assigning an employee to a project, I create a ProjectEmployee record (project id, employee id, and an id that represents the combination which is an identity column

Pass an entire model on form submission

由 天大地大妈咪最大 提交于 2019-12-04 16:40:58
问题 I understand that I can use @Html.HiddenFor(m => m.parameter) and when the form is submitted, that parameter will be passed to the controller. My model has many properties. Is there a shorter way of passing the entire model at once to the controller or must I do it one by one each time? 回答1: The model will be passed to the controller in its entirety, but the values of properties that are not bound by input or hidden fields will be lost. You have to either bind the properties in the form on

Pass an entire model on form submission

由 自古美人都是妖i 提交于 2019-12-03 09:51:05
I understand that I can use @Html.HiddenFor(m => m.parameter) and when the form is submitted, that parameter will be passed to the controller. My model has many properties. Is there a shorter way of passing the entire model at once to the controller or must I do it one by one each time? The model will be passed to the controller in its entirety, but the values of properties that are not bound by input or hidden fields will be lost. You have to either bind the properties in the form on the client-side, or re-fetch the entity on the server-side. You seem to be asking for something like @Html

What is the difference between Html.Hidden and Html.HiddenFor

由 佐手、 提交于 2019-11-28 18:06:17
I can find a good definition for Html.HiddenFor on MSDN but the only thing I can find on Html.Hidden is related to problems it has. Can someone give me a good definition and an example. Kirk Woll Most of the MVC helper methods have a XXXFor variant. They are intended to be used in conjunction with a concrete model class. The idea is to allow the helper to derive the appropriate "name" attribute for the form-input control based on the property you specify in the lambda. This means that you get to eliminate "magic strings" that you would otherwise have to employ to correlate the model properties

Html.HiddenFor value property not getting set

由 风流意气都作罢 提交于 2019-11-28 08:57:14
I could have used @Html.HiddenFor(x=> ViewData["crn"]) but, I get, <input id="ViewData_crn_" name="ViewData[crn]" type="hidden" value="500" /> To somehow circumvent that issue( id=ViewData_crn_ and name=ViewData[crn] ), I tried doing the following, but the "value" attribute isn't getting set. @Html.HiddenFor(x => x.CRN, new { @value="1"}) @Html.HiddenFor(x => x.CRN, new { @Value="1"}) generates <input id="CRN" name="CRN" type="hidden" value="" /> <input Value="500" id="CRN" name="CRN" type="hidden" value="" /> Am I doing anything wrong?? Thanks Have you tried using a view model instead of

What is the difference between Html.Hidden and Html.HiddenFor

由 两盒软妹~` 提交于 2019-11-27 11:03:15
问题 I can find a good definition for Html.HiddenFor on MSDN but the only thing I can find on Html.Hidden is related to problems it has. Can someone give me a good definition and an example. 回答1: Most of the MVC helper methods have a XXXFor variant. They are intended to be used in conjunction with a concrete model class. The idea is to allow the helper to derive the appropriate "name" attribute for the form-input control based on the property you specify in the lambda. This means that you get to
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