This populates and displays the initial value as expected. On a change event of another dropdown, I want to set the above back to it's default value by default, I mean the place holder value "Select a Contact Group" so it's not part of the actual data.
Asked 3 years, 10 months ago. Active 4 months ago. Viewed 9k times. I have declared a select2 dropdown on an MVC form in the following way: Html.
Id, Model. The change event of the other dropdown IS calling the above. It's the above that's the issue. Active Oldest Votes. Fruits as SelectList, "Select a fruit" Html.Perini 47 metri e-volution
Vegetables as SelectList. Denys Wessels Denys Wessels If the initial selected option based on the value of ContactGroup. Your question states set the above back to it's default value and the default value of a select is the initial value - not the first null option.
Perhaps you just got your terminology wrong? Yuri Bennet roy Bennet roy 71 1 1 silver badge 3 3 bronze badges. Hi and welcome to stackoverflow, and thank you for your answer.
Rather than just posting a block of code, can you give a short explanation to what the issue is you solved and how you solved it? This will help people who find this question in the future to better understand the issue and how to deal with it. Sign up or log in Sign up using Google.
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Q2 Community Roadmap. Featured on Meta. Community and Moderator guidelines for escalating issues via new response….Check out other DropDownList articles here :. There are two ways to specify which item is selected in a dropdown list, and this is the main source of confusion and problems.
There are two distinct scenarios:. There are at least two ways you can do that: either by using a helper class SelectList which creates a collection of SelectListItem instances or by creating that collection manually in the controller.
How to set the default value for an HTML element?
This is the most simple and short way of doing that. Note how 13 is used to specify default selection. This method is a bit more involved but it allows you use more complex logic for figuring which element should be marked as selected. CountryId in this case is not null.
In other words, if a user had selected a value or if the model got this value set via some other pathway like you loaded it from a databasethe default value will be ignored. I have tripped over this myself, time and again, even when writing this article. So make sure the model field that you use to store the selected Id from the dropdown list is nullable and is set to null on the first page load.
Also, do not use SelectedList or SelectedListItem to specify what user had selected, instead use them for what they are built - to specify a default value. Selected value is different from the default value in the way that it had, well, been selected at some point. You may have just loaded an object from a database for editing and need to render already selected country.
To do so you need to use the first argument of the DropDownListFor function. View code, uses Model.
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ContryId to specify selected value:. You can probably recall a time when you were stuck on some problem and the solution seemed so close, yet it took hours to figure it out. And when you eventually did that, it was something so infuriatingly stupid, you wanted to punch the monitor. Do you want to avoid wasting your time on stupid bugs and traps in. I only send useful and actionable advice, no spam ever, and you can unsubscribe at any time.
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The page is loaded with real data, and the dropdown selection is set to a value that user had chosen previously. Use SelectList in the view This is the most simple and short way of doing that. How to specify selected value Selected value is different from the default value in the way that it had, well, been selected at some point. CountryId ; model.
This is very simple but will result in an error if the dropdown already has a SelectedValue. Set the actual item DropDOwnList. FindByValue "value".Caterpillar generator price list
Set the SelectedValue property. Learn more.
How do I set an item in a DropDownList as the default value? Ask Question. Asked 10 years, 3 months ago. Active 10 years, 3 months ago. Viewed 25k times.
Nevin Mathai Nevin Mathai 2, 11 11 gold badges 38 38 silver badges 53 53 bronze badges. Active Oldest Votes. Ariel Ariel 4, 2 2 gold badges 17 17 silver badges 23 23 bronze badges. SLaks SLaks k gold badges silver badges bronze badges.
DataBind ; someDropDownList. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Programming tutorials can be a real drag.Real estate investment analysis excel spreadsheet
You can use. When you make any external changes that need to be reflected in Select2 such as changing the valueyou should trigger this event. This is further complicated by server-side filtering and pagination - there is no guarantee when a particular item will actually be loaded into the Select2 control!
The best way to deal with this, therefore, is to simply add the preselected item as a new option. For remotely sourced data, this will probably involve creating a new API endpoint in your server-side application that can retrieve individual items:. Notice that we manually trigger the select2:select event and pass along the entire data object. This allows other handlers to access additional properties of the selected item.
You may clear all current selections in a Select2 control by setting the value of the control to null :. Getting Started Installation Basic usage Builds and modules 2. Troubleshooting Getting Help Common problems 3. Appearance 5. Options 6.
How can I set the default value for an HTML element?
Data sources The Select2 data format Ajax remote data Arrays 7. Dropdown 8. Selections 9. Dynamic option creation The select tag in HTML is used to create a dropdown list of options which can be selected.
The option tag contains the value that would be used when selected. This is a boolean attribute. Output: Before clicking the list:. After clicking the list:. This option would have the hidden and disabled attribute in addition to selected. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.
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Check out this Author's contributed articles. Load Comments.Here this article can help you. You maybe interested in this:. To set default value for the drop down list, you need to create a general drop down list first, and then use a formula.
Create a drop down list. See screenshot:. Then in the Data Validation dialog, under Settings tab, select List from Allow list, and then select the value you want to show in the drop down list to Source textbox. Then click Error Alert tab in the Data Validation dialog, and uncheck Show error alert after invalid data is entered option. Tip: In the formula, J1 is a blank cell next to the K1, make sure that the cell is blank, and " --select-- " is the preselected value you want to show, and you can change them as you need.
Click OKnow before users select values from the drop down list, there is a default value shown in the specified cell with drop down list. Note: While a value is selected from the drop down list, the default value disappears. Log in. Remember Me Forgot your password? Forgot your username? Password Reset. Please enter the email address for your account. A verification code will be sent to you.
Once you have received the verification code, you will be able to choose a new password for your account.get selected dropdown (select option) value in jquery 3.3.1 onchange
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Learn more. Asked 6 years, 6 months ago.
Active 2 years, 6 months ago. Viewed 56k times. Mysimple World Mysimple World 93 1 1 gold badge 2 2 silver badges 11 11 bronze badges. Why is that there? Active Oldest Votes. How about: DropDownList4. You can get the value representing for pending first, let say PedingValue. Then: DropDownList4. Sign up or log in Sign up using Google. Sign up using Facebook.
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