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UserResourceReference Class

Class representing custom properties of type UserResource.
Inheritance Hierarchy
SystemObject
  Demo3D.VisualsUserResourceReference

Namespace:  Demo3D.Visuals
Assembly:  Demo3D.Core (in Demo3D.Core.dll) Version: 18.03.00
Syntax
C#
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public sealed class UserResourceReference

The UserResourceReference type exposes the following members.

Constructors
  NameDescription
Public methodUserResourceReference
Initializes a new instance of the UserResourceReference class.
Public methodUserResourceReference(String)
Initializes a new instance of the UserResourceReference class
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Properties
  NameDescription
Public propertyIsNull
Gets a value indicating whether the current instance is null (i.e. doesn't refer to a UserResource instance).
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Methods
  NameDescription
Public methodClear
Clears this UserResourceReference so it does not refer to a UserResource.
Public methodRead
Populates this instance of UserResourceReference from a serialized version.
Public methodToString
Returns a string representation of this instance's value.
(Overrides ObjectToString.)
Public methodView
Public methodWrite
Serializes this instance of UserResourceReference.
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Operators
  NameDescription
Public operatorStatic member(String to UserResourceReference)
Allow implicit conversion of string (path) to UserResourceReference for QuickScript C# code generation.
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Examples
C#
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[Auto] CustomPropertyValue<UserResourceReference> Data;

[Auto] void OnReset(BoxVisual sender) {
    if (!sender.HasProperty("Data")) return;

    var ur = document.FindUserResource(this.Data);
    var localFile = WriteUserResourceToTemporaryFile( ur );

    if (localFile == "") return;

    var dataTable =
        Demo3D.Utilities.DataSourceImporter.ReadDataTableFromTextFile( localFile );

    File.Delete( localFile );

    foreach (var colName in dataTable.Columns) {
        print(colName);
    }
}

string WriteUserResourceToTemporaryFile(UserResource ur) {
    if (ur == null) return "";

    var ins   = ur.GetInputStream(null);
    var len   = ins.Length;
    var bytes = new byte[len];

    ins.ReadExactly(bytes);

    var tmpFile = 
        Path.Combine( Path.GetTempPath(), Path.GetFileName(ur.LocalPath) );

    File.WriteAllBytes( tmpFile, bytes );

    return tmpFile;
}
See Also