In this Action Method , I am returning a model, that has a list of student names. Here I am showing how to show a selected dropdownlist value on Edit Page because this small thing will take time when you are new to this kind of technology. If you don't specify the DisplayMember and ValueMember properties, the ComboBox uses the ToString method of the object to determine the text displayed and you can retrieve the selected item (not selected value) through the SelectedItem property.. I have dropdownlist, which I have filled from database. Code which I have tried. In this case, the enum values were intialised at 1 so the helper added an option with a value of 0 and empty text and made it selected: If you want another option to be selected, you can set that in the view model: var model = new PowerViewModel (); model.Power = Power.Hydro; return View(model); The below code solves two problems: 1) dynamically set the selected value of the dropdownlist and 2) more importantly to create a dropdownlistfor for an indexed array in the model. Html.ListBoxFor Extension Method creates ListBox control and allows users to select multiple options in one go. If you add objects of this type class Person { public int PersonID { This complete tutorial shows you how to make your data repository and page model action methods asynchronous, improving the speed and capacity of your web app by following three simple steps. List names = new List() { "John", "Anna", "Monica" }; var result = String.Join(", ", names.ToArray()); Value: This is string type for the value of the dropdown; If you notice in the dropdownlist, we also need the same properties. For this reason we are using SelectListItem in a Ilist. Model public class MobileViewModel { public List MobileList; public SelectList Vendor { get; set; } } Controller You can use the Html.DropDownListFor helper method. In this post we will build our quiz application with an easy and simple approach. I hope it will be helpful for you. private async Task> GetListAsync(){ //Create a list object and assign it to a new task //which returns your list object List list = await Task.Run(() => manager.GetList()); return list; //Or you may just need to await something and just return a list await SomeMethod(); List list1 = new List(); return list; } Some times,you might want to set one option as the default option in the SELECT element (For example, in an edit screen, you want to load the previously saved option value). How to set a selected value of Dropdownlist on EditPage. Learn how to add asynchronous processing to ASP.NET Core 3.1 web applications built with the Model-View-ViewModel design pattern. I have used an SelectListItem and in my controller i am getting an exception 'Cannot implicitly convert type 'string' to string[] ' on the property pertaining to So we need to first create a list from enum and thereafter that list binds with the DropDownListFor method of the HTML Helper class on the view. Selected: This is a bool type to show in a dropdown (as selected) for the dropdown text. Note that you can add any type of item to the ComboBox. So we need to first create a list from enum and thereafter that list binds with the DropDownListFor method of the HTML Helper class on the view. As per the known bug documentation "The reason behind this problem is that asp.net MVC first looks for a match between the name of the drop down and property on the model.If theres a match, the selected value of the SelectList is overridden. I hope it will be helpful for you. If you notice in the code above, I use SelectListItem and SelectListItem having the two properties Text and Value, that are helpful for a list like Dropdownlist, Listbox etcetera. The benefit of using ListBoxFor is, all the options visually appear and a user has the option to select one option as well as more than one options. In this post we will build our quiz application with an easy and simple approach. Selected: This is a bool type to show in a dropdown (as selected) for the dropdown text. Html.ListBoxFor Extension Method creates ListBox control and allows users to select multiple options in one go. In the code above, I create a new ActionMethod and Student. The benefit of using ListBoxFor is, all the options visually appear and a user has the option to select one option as well as more than one options. Add a new property to your view model to store the dropdown options. Get the method of the Edit page from MobileDisplayController. Get the method of the Edit page from MobileDisplayController. What is Html.ListBoxFor Extension Method? public string CoutryID { get; set; } public List CountryList { get; set; } Controller method which fill the list. I would like to share with them a simple solution to achieve this application. I have a form whereby i need to do select multiple employees on a HtmlDropDownFor. To do that, you may simply set the EmployeeId property value to You can use the Html.DropDownListFor helper method. It is very useful when you want to get multiple options for the users. Learn how to add asynchronous processing to ASP.NET Core 3.1 web applications built with the Model-View-ViewModel design pattern. In the code above, I create a new ActionMethod and Student. Step 5: In the Views sub-folder, add a new folder and name it Home.In this folder, add a new resource file and name it as Index.en.resx.In this file, we need to add the String name and its value. List names = new List() { "John", "Anna", "Monica" }; var result = String.Join(", ", names.ToArray()); Selected: This is a bool type to show in a dropdown (as selected) for the dropdown text. You can use the Html.DropDownListFor helper method. To add the resource strings, open the Index.cshtml from the Views/Home folder and check the constant values, here we have values like Webcome, Learn about, etc. Changing the name of the drop down is all it takes to remedy the issue. Model public class MobileViewModel { public List MobileList; public SelectList Vendor { get; set; } } Controller Approach 1: Populate DropDownList by SelecteListItem using Enum I populate the DropDownList using a SelectListItem type list. The simplest solution (in my opinion) is to add a form element for the dropdown, which will automatically generate the anti forgery token as a hidden field (so long as the method is set to post): @{ var studentList = HttpContextAccessor.HttpContext.Session.GetObject>("StudentList"); } Here I am showing how to show a selected dropdownlist value on Edit Page because this small thing will take time when you are new to this kind of technology. In this post we will build our quiz application with an easy and simple approach. As per the known bug documentation "The reason behind this problem is that asp.net MVC first looks for a match between the name of the drop down and property on the model.If theres a match, the selected value of the SelectList is overridden. //To get selected value an text of dropdownlist function SelectedValue(ddlObject) { //Selected value of dropdownlist var selectedValue = ddlObject.value; //Selected text of dropdownlist var selectedText = ddlObject.options[ddlObject.selectedIndex].innerHTML; //alert popup with detail of seleceted value and text Code which I have tried. Add a new property to your view model to store the dropdown options. As per the known bug documentation "The reason behind this problem is that asp.net MVC first looks for a match between the name of the drop down and property on the model.If theres a match, the selected value of the SelectList is overridden. I have used an SelectListItem and in my controller i am getting an exception 'Cannot implicitly convert type 'string' to string[] ' on the property pertaining to Here I am showing how to show a selected dropdownlist value on Edit Page because this small thing will take time when you are new to this kind of technology. Model public class MobileViewModel { public List MobileList; public SelectList Vendor { get; set; } } Controller By default, the option with a value of 0 is selected. If you add objects of this type class Person { public int PersonID { But not getting the idea. string[] arr = {"foo", "bar"} Console.WriteLine(arr.Length); // >> 2 The below code solves two problems: 1) dynamically set the selected value of the dropdownlist and 2) more importantly to create a dropdownlistfor for an indexed array in the model. If you notice in the code above, I use SelectListItem and SelectListItem having the two properties Text and Value, that are helpful for a list like Dropdownlist, Listbox etcetera. To add the resource strings, open the Index.cshtml from the Views/Home folder and check the constant values, here we have values like Webcome, Learn about, etc. So we need to first create a list from enum and thereafter that list binds with the DropDownListFor method of the HTML Helper class on the view. private async Task> GetListAsync(){ //Create a list object and assign it to a new task //which returns your list object List list = await Task.Run(() => manager.GetList()); return list; //Or you may just need to await something and just return a list await SomeMethod(); List list1 = new List(); return list; } //To get selected value an text of dropdownlist function SelectedValue(ddlObject) { //Selected value of dropdownlist var selectedValue = ddlObject.value; //Selected text of dropdownlist var selectedText = ddlObject.options[ddlObject.selectedIndex].innerHTML; //alert popup with detail of seleceted value and text Now I need to get the selected value in Controller do some manipulation. This complete tutorial shows you how to make your data repository and page model action methods asynchronous, improving the speed and capacity of your web app by following three simple steps. Note that you can add any type of item to the ComboBox. Introduction. This is a known bug in ASP.NET MVC Razor View. The simplest solution (in my opinion) is to add a form element for the dropdown, which will automatically generate the anti forgery token as a hidden field (so long as the method is set to post): @{ var studentList = HttpContextAccessor.HttpContext.Session.GetObject>("StudentList"); } This complete tutorial shows you how to make your data repository and page model action methods asynchronous, improving the speed and capacity of your web app by following three simple steps. By default, the option with a value of 0 is selected. Step 1: Create a new project in Visual Studio, by navigating to File-> New -> Project-> Select "ASP.NET" from left pane and Select "ASP.NET web application" from right pane, name the project, click "OK" Select "MVC" template to generate basic MVC files and click "Ok" Step 2: Connect to your local database, I will be connecting to database using database first This article will demonstrate how to bind the values to Razor DropDownList in various ways using ASP.NET MVC5. To add the resource strings, open the Index.cshtml from the Views/Home folder and check the constant values, here we have values like Webcome, Learn about, etc. This article explains how to render a partial view and JSON data using AJAX. Changing the name of the drop down is all it takes to remedy the issue. This article explains how to render a partial view and JSON data using AJAX. string[] arr = {"foo", "bar"} Console.WriteLine(arr.Length); // >> 2 So many people asked in forums how we can build a quiz application using Asp.Net MVC. Changing the name of the drop down is all it takes to remedy the issue. This is a known bug in ASP.NET MVC Razor View. If you add objects of this type class Person { public int PersonID { But you should have some basic skills in Asp.Net MVC 5 and JQuery, Bootstrap. Learn how to add asynchronous processing to ASP.NET Core 3.1 web applications built with the Model-View-ViewModel design pattern. I have used an SelectListItem and in my controller i am getting an exception 'Cannot implicitly convert type 'string' to string[] ' on the property pertaining to To do that, you may simply set the EmployeeId property value to It is very useful when you want to get multiple options for the users. I would like to share with them a simple solution to achieve this application. Code which I have tried. Introduction. Note that you can add any type of item to the ComboBox. Output after editing. I have divided this article into three sections to understand both concepts, the first section describes the basic code and structure that is common in both concepts, the second section describes how to render a partial view using AJAX and the last section describes how This is a known bug in ASP.NET MVC Razor View. How to set a selected value of Dropdownlist on EditPage. private async Task> GetListAsync(){ //Create a list object and assign it to a new task //which returns your list object List list = await Task.Run(() => manager.GetList()); return list; //Or you may just need to await something and just return a list await SomeMethod(); List list1 = new List(); return list; } To do that, you may simply set the EmployeeId property value to What is Html.ListBoxFor Extension Method? The simplest solution (in my opinion) is to add a form element for the dropdown, which will automatically generate the anti forgery token as a hidden field (so long as the method is set to post): @{ var studentList = HttpContextAccessor.HttpContext.Session.GetObject>("StudentList"); } Approach 1: Populate DropDownList by SelecteListItem using Enum I populate the DropDownList using a SelectListItem type list. public class CreateUser { public int CountryId {set;get;} public List Countries {set;get;} } I have divided this article into three sections to understand both concepts, the first section describes the basic code and structure that is common in both concepts, the second section describes how to render a partial view using AJAX and the last section describes how string[] arr = {"foo", "bar"} Console.WriteLine(arr.Length); // >> 2 But you should have some basic skills in Asp.Net MVC 5 and JQuery, Bootstrap. So many people asked in forums how we can build a quiz application using Asp.Net MVC. For this reason we are using SelectListItem in a Ilist. Some times,you might want to set one option as the default option in the SELECT element (For example, in an edit screen, you want to load the previously saved option value). Approach 1: Populate DropDownList by SelecteListItem using Enum I populate the DropDownList using a SelectListItem type list. public class CreateUser { public int CountryId {set;get;} public List Countries {set;get;} } Step 5: In the Views sub-folder, add a new folder and name it Home.In this folder, add a new resource file and name it as Index.en.resx.In this file, we need to add the String name and its value. Output after editing. Html.ListBoxFor Extension Method creates ListBox control and allows users to select multiple options in one go. In this Action Method , I am returning a model, that has a list of student names. So many people asked in forums how we can build a quiz application using Asp.Net MVC. public string CoutryID { get; set; } public List CountryList { get; set; } Controller method which fill the list. Output after editing. What is Html.ListBoxFor Extension Method? Some times,you might want to set one option as the default option in the SELECT element (For example, in an edit screen, you want to load the previously saved option value). If you notice in the code above, I use SelectListItem and SelectListItem having the two properties Text and Value, that are helpful for a list like Dropdownlist, Listbox etcetera. public class CreateUser { public int CountryId {set;get;} public List Countries {set;get;} } By default, the option with a value of 0 is selected. But not getting the idea. In this article, I will demonstrate the simple ways to populate a DropDownList using ViewBag, ViewData, TempData, jQuery, Model, Database, jQuery AJAX, and hardcoding in View. Now I need to get the selected value in Controller do some manipulation. Get the method of the Edit page from MobileDisplayController. In this case, the enum values were intialised at 1 so the helper added an option with a value of 0 and empty text and made it selected: If you want another option to be selected, you can set that in the view model: var model = new PowerViewModel (); model.Power = Power.Hydro; return View(model); public string CoutryID { get; set; } public List CountryList { get; set; } Controller method which fill the list. This property should be of type List. Step 1: Create a new project in Visual Studio, by navigating to File-> New -> Project-> Select "ASP.NET" from left pane and Select "ASP.NET web application" from right pane, name the project, click "OK" Select "MVC" template to generate basic MVC files and click "Ok" Step 2: Connect to your local database, I will be connecting to database using database first This article will demonstrate how to bind the values to Razor DropDownList in various ways using ASP.NET MVC5. The benefit of using ListBoxFor is, all the options visually appear and a user has the option to select one option as well as more than one options. In this article, I will demonstrate the simple ways to populate a DropDownList using ViewBag, ViewData, TempData, jQuery, Model, Database, jQuery AJAX, and hardcoding in View. List names = new List() { "John", "Anna", "Monica" }; var result = String.Join(", ", names.ToArray()); I have divided this article into three sections to understand both concepts, the first section describes the basic code and structure that is common in both concepts, the second section describes how to render a partial view using AJAX and the last section describes how In the code above, I create a new ActionMethod and Student. Step 5: In the Views sub-folder, add a new folder and name it Home.In this folder, add a new resource file and name it as Index.en.resx.In this file, we need to add the String name and its value. If you don't specify the DisplayMember and ValueMember properties, the ComboBox uses the ToString method of the object to determine the text displayed and you can retrieve the selected item (not selected value) through the SelectedItem property.. I hope it will be helpful for you. This property should be of type List. If you don't specify the DisplayMember and ValueMember properties, the ComboBox uses the ToString method of the object to determine the text displayed and you can retrieve the selected item (not selected value) through the SelectedItem property.. Step 1: Create a new project in Visual Studio, by navigating to File-> New -> Project-> Select "ASP.NET" from left pane and Select "ASP.NET web application" from right pane, name the project, click "OK" Select "MVC" template to generate basic MVC files and click "Ok" Step 2: Connect to your local database, I will be connecting to database using database first But not getting the idea. I would like to share with them a simple solution to achieve this application. In this Action Method , I am returning a model, that has a list of student names. In this case, the enum values were intialised at 1 so the helper added an option with a value of 0 and empty text and made it selected: If you want another option to be selected, you can set that in the view model: var model = new PowerViewModel (); model.Power = Power.Hydro; return View(model); But you should have some basic skills in Asp.Net MVC 5 and JQuery, Bootstrap. Introduction. Add a new property to your view model to store the dropdown options. This property should be of type List. This article explains how to render a partial view and JSON data using AJAX. Now I need to get the selected value in Controller do some manipulation. The below code solves two problems: 1) dynamically set the selected value of the dropdownlist and 2) more importantly to create a dropdownlistfor for an indexed array in the model. In this article, I will demonstrate the simple ways to populate a DropDownList using ViewBag, ViewData, TempData, jQuery, Model, Database, jQuery AJAX, and hardcoding in View. //To get selected value an text of dropdownlist function SelectedValue(ddlObject) { //Selected value of dropdownlist var selectedValue = ddlObject.value; //Selected text of dropdownlist var selectedText = ddlObject.options[ddlObject.selectedIndex].innerHTML; //alert popup with detail of seleceted value and text How to set a selected value of Dropdownlist on EditPage. I have dropdownlist, which I have filled from database. For this reason we are using SelectListItem in a Ilist. I have a form whereby i need to do select multiple employees on a HtmlDropDownFor. It is very useful when you want to get multiple options for the users. This article will demonstrate how to bind the values to Razor DropDownList in various ways using ASP.NET MVC5. I have dropdownlist, which I have filled from database. Value: This is string type for the value of the dropdown; If you notice in the dropdownlist, we also need the same properties. I have a form whereby i need to do select multiple employees on a HtmlDropDownFor. Value: This is string type for the value of the dropdown; If you notice in the dropdownlist, we also need the same properties.