I need to select one value from dropdown list automatically by passing the value in url using MVC

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i have a dropdown list with below values. when i click on url, i wanted to select the required value in the dropdown automatically.

select POR to fetch checklist
901:R Server Quarterly (Quarterly Update; Product/PFAM rename)
913:Visual Studio for MAC (media launch)

let's say if i want to select 901 value automatically, i wanted this value should be passed in the url and on clicking it should select the value.am using mvc.

my url is @urlaction("PORChecklist","Tables"). how do i select the value automatically from dropdown by using this url.

What I have tried:

I have used jquery in view for selecting the value automatically but i harcoded the value as of now.

function selectFromDropdown(selector, text) {
$(selector).find('option').each(function () {
if ($(this).text() == text) {
$(selector).val($(this).val());

return false;
}
})
}
setTimeout(function () {
selectFromDropdown('#PORList', '913:Visual Studio for MAC (media launch)')
},
it is working fine for me. but as requested i would need like wanted to pass the required value that need to be selected through url only.

here is the code snippet which holds the list of options in controller page.
public ActionResult PORChecklist()
{

List<string> dropdown_content = new List<string>();
dropdown_content = DOMEHelper.FufillmentChecklistPORs();
SelectList list = new SelectList(dropdown_content);

ViewBag.ListOfPORs = list;
return View();

}

Posted 16-May-17 0:10am

Member 13203555

Updated 18-May-17 2:52am

v2

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F-ES Sitecore 16-May-17 6:49am

Rather than using javascript specify what value you want selected when you create the SelectList object

http://stackoverflow.com/questions/1390830/mvc-set-selected-value-of-selectlist

2 solutions

Solution 2

Hi..thanks for your solution. Iam able to solve for the second question that i asked u. here is the below code.
in cs.html

<a class="visitedlink" target="_blank" href='@Url.Action("PORchecklist_list", "Tables" , new {PORID = @s.PorID })' >@s.OverAllTaskStatus%</a></div>

in controller

Quote:
public ActionResult PORChecklist_list(string PORID)
{

List<string> Desc = new List<string>();
Desc = WorkItemDescription.GetAllLaunchWorkItemDescription(PORID);

// Desc = WorkItemDescription.GetAllLaunchWorkItemDescription(913);
var list = "";

foreach (var a in Desc)
{
list = list + a;
}
return Json(list);
}

But am facing

Quote:
System.InvalidOperationException: This request has been blocked because sensitive information could be disclosed to third party web sites when this is used in a GET request. To allow GET requests, set JsonRequestBehavior to AllowGet.

error.
I used

return Json(list, "text/plain");

and

return Json(list,JsonRequestBehavior.AllowGet);

as well ..am facing the issue while executing. Please help me.

Posted 18-May-17 2:52am

Member 13203555

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David_Wimbley · Accepted Answer · 2017-05-16T09:19:00

I would say since you already have the item that needs to be selected in your URL you should just alter your action in your controller to accept it as the argument.

So if your URL is something like

/MyApp/PORChecklist/913:Visual Studio for MAC (media launch)

C#

public class MyAppController
{
	public ActionResult PORChecklist(string id)
	{
		List<string> dropdown_content = new List<string>();
		var dropdown_content = DOMEHelper.FufillmentChecklistPORs();
		SelectList list = new SelectList(dropdown_content);

		var selectedItem = list.FirstOrDefault(m=>m.Value == id);

		if(selectedItem != null)
		{
		   selectedItem.Selected = true;
		}    
		
		ViewBag.ListOfPORs = list;
		return View();
	}
}

If you name your parameter in your action something other than id you'll need to make sure you adjust your action or your routes to accommodate your different parameter name.

ex: /MyApp/PORChecklist/?selectedItem=913:Visual Studio for MAC (media launch)

Your action in your controller will need to look something like

C#

public ActionResult PORChecklist(string selectedItem)

This way you don't have to do your selection via javascript and it is handled by your controller keeping in line with the MVC conventions. I didn't run/test this code but the general idea is here to do what you need.