ActivityMetadata.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.Activities / System / Activities / ActivityMetadata.cs / 1305376 / ActivityMetadata.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.Activities 
{
    using System; 
    using System.Runtime; 
    using System.Collections.ObjectModel;
    using System.Activities.Validation; 

    public struct ActivityMetadata
    {
        Activity activity; 
        LocationReferenceEnvironment environment;
        bool createEmptyBindings; 
 
        internal ActivityMetadata(Activity activity, LocationReferenceEnvironment environment, bool createEmptyBindings)
        { 
            this.activity = activity;
            this.environment = environment;
            this.createEmptyBindings = createEmptyBindings;
        } 

        internal bool CreateEmptyBindings 
        { 
            get
            { 
                return this.createEmptyBindings;
            }
        }
 
        public LocationReferenceEnvironment Environment
        { 
            get 
            {
                return this.environment; 
            }
        }

        public bool HasViolations 
        {
            get 
            { 
                if (this.activity == null)
                { 
                    return false;
                }
                else
                { 
                    return this.activity.HasTempViolations;
                } 
            } 
        }
 
        public override bool Equals(object obj)
        {
            if (!(obj is ActivityMetadata))
            { 
                return false;
            } 
 
            ActivityMetadata other = (ActivityMetadata)obj;
            return other.activity == this.activity && other.Environment == this.Environment 
                && other.CreateEmptyBindings == this.CreateEmptyBindings;
        }

        public override int GetHashCode() 
        {
            if (this.activity == null) 
            { 
                return 0;
            } 
            else
            {
                return this.activity.GetHashCode();
            } 
        }
 
        public static bool operator ==(ActivityMetadata left, ActivityMetadata right) 
        {
            return left.Equals(right); 
        }

        public static bool operator !=(ActivityMetadata left, ActivityMetadata right)
        { 
            return !left.Equals(right);
        } 
 
        public void Bind(Argument binding, RuntimeArgument argument)
        { 
            ThrowIfDisposed();

            Argument.TryBind(binding, argument, this.activity);
        } 

        public void SetValidationErrorsCollection(Collection validationErrors) 
        { 
            ThrowIfDisposed();
 
            ActivityUtilities.RemoveNulls(validationErrors);

            this.activity.SetTempValidationErrorCollection(validationErrors);
        } 

        public void AddValidationError(string validationErrorMessage) 
        { 
            AddValidationError(new ValidationError(validationErrorMessage));
        } 

        public void AddValidationError(ValidationError validationError)
        {
            ThrowIfDisposed(); 

            if (validationError != null) 
            { 
                this.activity.AddTempValidationError(validationError);
            } 
        }

        public void SetArgumentsCollection(Collection arguments)
        { 
            ThrowIfDisposed();
 
            ActivityUtilities.RemoveNulls(arguments); 

            this.activity.SetArgumentsCollection(arguments, this.createEmptyBindings); 
        }

        public void AddArgument(RuntimeArgument argument)
        { 
            ThrowIfDisposed();
 
            if (argument != null) 
            {
                this.activity.AddArgument(argument, this.createEmptyBindings); 
            }
        }

        public void SetImportedChildrenCollection(Collection importedChildren) 
        {
            ThrowIfDisposed(); 
 
            ActivityUtilities.RemoveNulls(importedChildren);
 
            this.activity.SetImportedChildrenCollection(importedChildren);
        }

        public void AddImportedChild(Activity importedChild) 
        {
            ThrowIfDisposed(); 
 
            if (importedChild != null)
            { 
                this.activity.AddImportedChild(importedChild);
            }
        }
 
        public void SetImportedDelegatesCollection(Collection importedDelegates)
        { 
            ThrowIfDisposed(); 

            ActivityUtilities.RemoveNulls(importedDelegates); 

            this.activity.SetImportedDelegatesCollection(importedDelegates);
        }
 
        public void AddImportedDelegate(ActivityDelegate importedDelegate)
        { 
            ThrowIfDisposed(); 

            if (importedDelegate != null) 
            {
                this.activity.AddImportedDelegate(importedDelegate);
            }
        } 

        public void SetVariablesCollection(Collection variables) 
        { 
            ThrowIfDisposed();
 
            ActivityUtilities.RemoveNulls(variables);

            this.activity.SetVariablesCollection(variables);
        } 

        public void AddVariable(Variable variable) 
        { 
            ThrowIfDisposed();
 
            if (variable != null)
            {
                this.activity.AddVariable(variable);
            } 
        }
 
        public Collection GetArgumentsWithReflection() 
        {
            return Activity.ReflectedInformation.GetArguments(this.activity); 
        }

        public Collection GetImportedChildrenWithReflection()
        { 
            return Activity.ReflectedInformation.GetChildren(this.activity);
        } 
 
        public Collection GetVariablesWithReflection()
        { 
            return Activity.ReflectedInformation.GetVariables(this.activity);
        }

        public Collection GetImportedDelegatesWithReflection() 
        {
            return Activity.ReflectedInformation.GetDelegates(this.activity); 
        } 

        public void AddDefaultExtensionProvider(Func extensionProvider) 
            where T : class
        {
            if (extensionProvider == null)
            { 
                throw FxTrace.Exception.ArgumentNull("extensionProvider");
            } 
            this.activity.AddDefaultExtensionProvider(extensionProvider); 
        }
 
        public void RequireExtension()
            where T : class
        {
            this.activity.RequireExtension(typeof(T)); 
        }
 
        public void RequireExtension(Type extensionType) 
        {
            if (extensionType == null) 
            {
                throw FxTrace.Exception.ArgumentNull("extensionType");
            }
            if (extensionType.IsValueType) 
            {
                throw FxTrace.Exception.Argument("extensionType", SR.RequireExtensionOnlyAcceptsReferenceTypes(extensionType.FullName)); 
            } 
            this.activity.RequireExtension(extensionType);
        } 

        internal void Dispose()
        {
            this.activity = null; 
        }
 
        void ThrowIfDisposed() 
        {
            if (this.activity == null) 
            {
                throw FxTrace.Exception.AsError(new ObjectDisposedException(ToString()));
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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ActivityMetadata.cs source code in C# .NET

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