"GetResourceSet" method of "ResourceManager" [System.Resources] class returns empty - even if it exists in collection

Question

I am using following code to retrieve the Resource file values in C#

        CultureInfo cultureInfo = new System.Globalization.CultureInfo("zh-CN"); // just hard coded to make question simpler
        ResourceManager rm = new ResourceManager("SchedulingSystem", Assembly.GetExecutingAssembly());

        var entry = rm.GetResourceSet(cultureInfo, true, true)
         .OfType<DictionaryEntry>()
         .FirstOrDefault(e => e.Value.ToString() == input);//input => "No_Records"

        var key = entry.Key.ToString();
        return key;

Both Key and Value returns as null, but if I use "Quick View" in Visual studio, I can see the values as shown in the Image, The input "No_Records" can be seen in Quick view of object.

I have also referred stack overflow quesitons like [Why does ResourceManager.GetResourceSet return null on the first request after a build? (C#) enter image description here

What I might have missed in my c# code?

There's a simple typo in your code, you want to compare e.Key to *input*, not e.Value — Hans Passant, Oct 06 '14 at 18:52

score 0 · Accepted Answer · answered Oct 06 '14 at 18:54

I am not sure if the ResourceSet dictionary keys are case or culture sensitive, but there are two possible issues with your implementation:

You are using Value not Key
You are performing a straight comparison on the values instead of mitigating culture and case-sensitive differences.

Changing to the following should resolve your issues:

.FirstOrDefault(e => e.Key.ToString().Equals(input, StringComparison.InvariantCultureIgnoreCase));

"GetResourceSet" method of "ResourceManager" [System.Resources] class returns empty - even if it exists in collection

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