Component Property Data Types - How to set?

I have developed a component, and within ProvideComponentProperties I have added a property (reflected code)-

IDTSCustomProperty90 property1 = base.get_ComponentMetaData().get_CustomPropertyCollection().New();
property1.set_Name("Seed");
property1.set_Description("The first row number.");
property1.set_Value(1);
property1.set_ExpressionType(1);
property1.set_TypeConverter(typeof(Int32Converter).AssemblyQualifiedName);

I want this to be an Int32, but where do you set this? I am having problems, because sometimes the component ends up with a Decimal type. This only becomes apparent when I try and set an expression. I get -

TITLE: Expression Builder

Cannot convert expression value to property type.
Cannot convert 'System.Int32' to 'System.Decimal'.

The expression I tried always a variable, of type Int32.

Looking at the package Xml I can see the property has been defined as Decimal, but why when I have never told it that-

<property id="18464" name="Seed" dataType="System.Decimal" state="default" isArray="false" description="The first row number." typeConverter="System.ComponentModel.Int32Converter, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" UITypeEditor="" containsID="false" expressionType="Notify">1</property>

It would appear that there is no way to set the typ of property, bit limiting, and that SSIS assumes a type, since it clearly has one in the XML. If it gets this wrong
you have to hack the package Xml to recover.

I have tried this several times, and some packages have worked OK, and others get stuck with Decimal. Any ideas why?

You are setting the datatype when you call set_Value. Now why 1 is becoming a decimal I am not certain but that is what is being passed to set_Value. Try creating an Int32 variable and using that to set the value and see if that solves your problem.

HTH,
Matt|||So idea goes that the literal 1 is coming out as decimal, but if I use an explicitly typed set parameter I should remove the ambiguity. I shall give it a go.

Thanks.|||

Matt,

I am having a similar problem again, this time I want the custom property type to be an enumeration. I have tried casting, using variables all sorts, but if I check the type of the variable after I have set the value, it is always Int32. I know Int32 and Enums are pretty much interchangeable, but the issue is I want to set the TypeConverter to EnumConverter. It does not work, and I assume this is because the value type is not an Enum. In the properties grid I just get an empty drop-down.

In this sample _Algorithm is a private class variable defined as an Enum type of mine.

IDTSCustomPropertyCollection90 propertyCollection = ComponentMetaData.CustomPropertyCollection;
IDTSCustomProperty90 customProperty = propertyCollection.New();
customProperty.Name = "DDD";
customProperty.Description = "hkjhgh";
customProperty.Value = _Algorithm;
customProperty.TypeConverter = typeof(System.ComponentModel.EnumConverter).AssemblyQualifiedName;

If I check customProperty.Value.GetType().Name I always get Int32.

Any ideas? I don't want to have to write my own TypeConverter coded to the specific enum, that is maddness.