Your code does not set the MAPI property type:
PT_STRING8 = 0x001E
....
int i = sitem.GetIDsFromNames("{00020386-0000-0000-C000-000000000046}",
"x-test-header");
i = i | PT_STRING8;
Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool
"racni" <racniro[ at ]gmail.com> wrote in message
news:1144070100.701392.12360[ at ]i40g2000cwc.googlegroups.com...
[Quoted Text] > I can not add the custom headers. It runs without giving any errors.
> But it did not change the header. If is some thing wrong with my C#
> code
>
>
>
> Please have a look at following code
>
>
>
> "x-test-header" header is not added to the email
>
>
>
>
>
> 1 Type t = Type.GetTypeFromProgID("Redemption.SafeMailItem");
>
>
> 2 Redemption.SafeMailItem sitem = (Redemption.SafeMailItem)
> Activator.CreateInstance(t);
>
> 3 sitem.Item = this.myMailItem;
>
> 4 int i =
> sitem.GetIDsFromNames("{00020386-0000-0000-C000-000000000046}",
> "x-test-header");
>
> 5 sitem.set_Fields(i,"hello");
>
> 6 SetPropValue(sitem, "Subject", "Testing Redemption");
>
> 7 sitem.Send();
>
>
>
>
>
> Please see the line number 4 . I m not sure abut it , because in the
> vb6 code it is the 8 bit string as to my knowledge . But I do not know
> the logic behind it . so how we are going to deal with this in c#.
>
>
>
> Can you help me regarding this
>
>
>
> This is the method I used for the change the subject field
>
>
>
> private static void SetPropValue(object item, string
> propertyName,
>
> object propertyValue)
>
> {
>
> try
>
> {
>
> object[] args = new Object[1];
>
> args[0] = propertyValue;
>
> Type type = item.GetType();
>
> type.InvokeMember(
>
> propertyName,
>
> BindingFlags.Public |
> BindingFlags.SetField |
>
> BindingFlags.SetProperty,
>
> null,
>
> item,
>
> args);
>
> }
>
> catch (SystemException ex)
>
> {
>
> Console.WriteLine(
>
> string.Format(
>
> "SetPropValue for {0} Exception:
> {1} ",
>
> propertyName, ex.Message));
>
> }
>
> return;
>
> }
>
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