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Getting null reference error while trying to create the schema. Using Tridion 2013 SP1 and code written in C#

Code Snippet :

SchemaData mmSchema = (SchemaData)client.GetDefaultData(ItemType.Schema, locationId, new ReadOptions());    
var list = client.GetSystemWideList(new MultimediaTypesFilterData());
var multimediaType = list.OfType<MultimediaTypeData>().Select(mt => mt.Id);

LinkToMultimediaTypeData[] arrayLinkToMultimediaTypeData = new LinkToMultimediaTypeData[multimediaType.Count()];
var i = 0;
foreach (var item in multimediaType)
{        
    var allowedMultimediaType = new LinkToMultimediaTypeData { IdRef = item };
    arrayLinkToMultimediaTypeData[i] = allowedMultimediaType;
    i += 1;
}
mmSchema.Title = title;
mmSchema.Description = title;
mmSchema.Purpose = SchemaPurpose.Multimedia;
mmSchema.AllowedMultimediaTypes = arrayLinkToMultimediaTypeData;
mmSchema = client.Create(mmSchema, new ReadOptions()) as SchemaData;

Thank you in advance for any help.

2
  • Can you improve your question noting the environment, versions, etc. Aug 17 '16 at 11:51
  • Can you check the number of items in multimediaType?
    – robrtc
    Aug 17 '16 at 13:54
3

In the foreach loop you are redefining i each time, so i will always be 0. Consequently I suspect the remaining items in your array will by default be null.

1
  • But atleast one last data will be there, though the others are null.So what I undersstand in this case multimedia type can not be null.Thank you. Aug 17 '16 at 12:15

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