Constructor on type 'MySequenom.Data.DBFileContentProvider' not found.

[Adam]

I have implemented a custom content provider and trying to use it with the RadFileExplorer:

RadFileExplorer1.Configuration.ContentProviderTypeName = typeof(DBFileContentProvider).AssemblyQualifiedName;

However, I get an error: 

Constructor on type 'MySequenom.Data.DBFileContentProvider' not found.

My provider does have a contrstructor so I am unsure what the problem is.

public DBFileContentProvider(HttpContext context, string[] searchPatterns, string[] viewPaths, string[] uploadPaths, string[] deletePaths, string selectedUrl, string selectedItemTag, int nodeId)
            :
            base(context, searchPatterns, viewPaths, uploadPaths, deletePaths, selectedUrl, selectedItemTag)
        {
            _itemHandlerPath = ConfigurationManager.AppSettings["ItemHandlerPath"];
            if (_itemHandlerPath.StartsWith("~/"))
            {
                _itemHandlerPath = HttpContext.Current.Request.ApplicationPath + _itemHandlerPath.Substring(1);
            }
            if (SelectedItemTag != null && SelectedItemTag != string.Empty)
            {
                SelectedItemTag = ExtractPath(RemoveProtocolNameAndServerName(SelectedItemTag));
            }
        }

[Fiko]

Hi Adam,

The problem is in the DBFileContentProvider's  constructor. You need to implement a constructor with 7 parameters only, that will exactly match the constructor of the base class. The highlighted (8th parameter) parameter in the construction causes the error in your case.

public DBFileContentProvider(
HttpContext context,
 string[] searchPatterns,
 string[] viewPaths,
 string[] uploadPaths,
 string[] deletePaths,
 string selectedUrl,
 string selectedItemTag,
 int nodeId
)

Please remove it and you should not experience the same error.


All the best,
Fiko
the Telerik team

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[Adam]

That was the problem.  Thank you.