ASP VB. NET Highlight Row to Red color - asp.net-mvc-4

Question

I would like to select the row and highlight to Red if status equal to Offline.
How can i do it in ASP .NET?
I saw quite alot of example talking about protected void OnRowCreated(object sender, GridViewRowEventArgs e).
I should create the class in Controller? or View? Very confuse on the new MVC >_<
Please help

Answer 1

You should just reference the row values Online/Offline status from the model and change the CSS accordingly to highlight the row. Since no code has been provided I have mocked an example up:
I.e.
public class OnlineOfflineElements {
public List<Element> elements { get; set; }
}
public class Element {
public bool isOnline { get; set; }
}
Then in your View:
#foreach (var status in elements) {
if (status.isOnline) {
<tr class="Online">
} else {
<tr class="Offline">
}
// Other model content here
}

Answer 2

I tried the method CSS TD Class to red, but i could not get it work. Any idea?
My code as follow:-
#For Each item In Model
Dim currentItem = item
Dim status = Html.Action("showPing", New With {.ipaddress = currentItem.IP})
If status.Equals("Online") Then
#<tr>
<td>
#Html.DisplayFor(Function(modelItem) currentItem.Name)
</td>
<td>
#Html.DisplayFor(Function(modelItem) currentItem.IP)
</td>
<td>
#Html.DisplayFor(Function(modelItem) currentItem.Location)
</td>
<td>
#Html.Action("showPing", New With {.ipaddress = currentItem.IP})
</td>
</tr>
Else
#<tr>
<td class="red">
#Html.DisplayFor(Function(modelItem) currentItem.Name)
</td>
<td class="red">
#Html.DisplayFor(Function(modelItem) currentItem.IP)
</td>
<td class="red">
#Html.DisplayFor(Function(modelItem) currentItem.Location)
</td>
<td class="red">
#Html.Action("showPing", New With {.ipaddress = currentItem.IP})
</td>
</tr>
End If
Next
It showed all red. I am using ASP .NET VB MVC4

Answer 3

I have just been able to complete this for a gridview in my webpage. I needed to be able to change a row of data when offline to red.
Protected Sub grdName_RowDataBound(ByVal sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles grdName.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
If DataBinder.Eval(e.Row.DataItem, "Status").ToString() = "OffLine" Then
e.Row.BackColor = System.Drawing.Color.Red
End If
End If
End Sub
Hope this helps.
Betty