How can I programmatically remove Custom Document Properties from Word Documents?
I have been working on a project that requires me to be able to add and remove custom document properties from Word documents. It was fairly easy to find demonstrations on how to add/view Custom Document properties, but I have been unable to remove them. How can I do this? I've included examples I found of how to add/view.
public void ReadCustom()
{
object oDocCustomProps = _document.CustomDocumentProperties;
Type typeDocCustomProps = oDocCustomProps.GetType();
string strIndex = "Knowledge Base Article";
string strValue;
try
{
object oKBProp = typeDocCustomProps.InvokeMember("Item",
BindingFlags.Default |
BindingFlags.GetProperty,
null, oDocCustomProps,
new object[] { strIndex });
Type typeKBProp = oKBProp.GetType();
strValue = typeKBProp.InvokeMember("Value",
BindingFlags.Default |
BindingFlags.GetProperty,
null, oKBProp,
new object[] { }).ToString();
MessageBox.Show("The KB is: " + strValue, "KB");
}
catch (TargetInvocationException ex)
{
MessageBox.Show(strIndex + " does not exist");
}
}
public void DeleteCustom()
{
object oDocCustomProps = _document.CustomDocumentProperties;
Type typeDocCustomProps = oDocCustomProps.GetType();
string strIndex = "Knowledge Base Article";
string strValue;
object oKBProp = typeDocCustomProps.InvokeMember("Remove",
BindingFlags.Default |
BindingFlags.GetProperty,
null, oDocCustomProps,
new object[] { strIndex });
}
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION
Graham Skan:
I've see this example in several bogs/help sites, but it doesn't appear to work in C#. Whenever I try it I get errors, specifically I get:
"Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.Office.Core.Doc
I've see this example in several bogs/help sites, but it doesn't appear to work in C#. Whenever I try it I get errors, specifically I get:
"Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.Office.Core.Doc
public void DeleteCustom()
{
DocumentProperties properties = (DocumentProperties) _document.CustomDocumentProperties;
foreach (DocumentProperty wdProp in properties)
{
wdProp.Delete();
}
}
b_haynes:
I tried the solution that you proposed, and it wouldn't compile, I got a, "Cannot apply indexing with [ ] to an expression of type 'object'. I'm tried casting it, but no matter how I cast it I still get problems.
I tried the solution that you proposed, and it wouldn't compile, I got a, "Cannot apply indexing with [ ] to an expression of type 'object'. I'm tried casting it, but no matter how I cast it I still get problems.
Thanks for both your help. Here I found a solution that seems to work:
public void DeleteCustom()
{
object oDocCustomProps = _document.CustomDocumentProperties;
Type typeDocCustomProps = oDocCustomProps.GetType();
string strIndex = "PropertyName";
try
{
object oKBProp = typeDocCustomProps.InvokeMember("Item",
BindingFlags.Default |
BindingFlags.GetProperty,
null, oDocCustomProps,
new object[] { strIndex });
Type typeKBProp = oKBProp.GetType();
typeKBProp.InvokeMember("Delete", BindingFlags.Default | BindingFlags.InvokeMethod, null, oKBProp, null);
}
catch { }
}
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION
Join our community and discover your potential
Experts Exchange is the only place where you can interact directly with leading experts in the technology field. Become a member today and access the collective knowledge of thousands of technology experts.
*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.