Word document custom properties

[Alan T]

How do I check if the Word document custom property exists?

And how to remove it?

object customProps = wordDoc.CustomDocumentProperties;

Type typeCustomProps = customProps.GetType();

object[] args =

{"CompanyName",

false,

Microsoft.Office.Core.MsoDocProperties.msoProperty TypeString,

"Microsoft Corporation"};

// I know how to add the property by

typeCustomProps.InvokeMember("Add",

BindingFlags.Default | BindingFlags.InvokeMethod,

null,

customProps,

args);

But I want to check if it exists then delete it, and then add it back?