I have a string in the controller which queries Rest API stores the response
string rmID = searchLogic.GetRoomID(rmName.Substring(0, rmName.IndexOf(' '))).Result;
This field is not in the Model class. I need to check if the string rmID is Empty or Null
in the Index.cshtml and show/hide a div class
@{
if (String.IsNullOrEmpty(rmID))
{
<div style="padding-bottom:2rem">
<div style="margin-left:auto;margin-right:auto;text-align:center">
<b>
**You have selected not valid room**
</b>
</div>
</div>
}
}
But the above one doesnot work
CodePudding user response:
Use ViewBag
to pass the value of rmID
from controller to the View.
string rmID = searchLogic.GetRoomID(rmName.Substring(0, rmName.IndexOf(' '))).Result;
ViewBag.Id = rmID;
Then in the view, Use @ViewBag.Id
to receive the value and do judgement.
View
@if (!String.IsNullOrEmpty(@ViewBag.Id))
{
<div style="padding-bottom:2rem">
<div style="margin-left:auto;margin-right:auto;text-align:center">
<b>
**You have selected not valid room**
</b>
</div>
</div>
}