/// <param
name="tr">Transaction</param>
/// <param
name="AttRef">AttributeReference</param>
/// <param name="BlockRefId">Id of the
BlockReference</param>
///
<param name="AttTextString">The new TextString if it does have a
blockplaceholder</param>
///
<returns>"True" if Blockdeffinition has a Blockplaceholder, "False" if
not</returns>
public static
bool AttributeHasBlockplaceholder(Transaction tr, AttributeReference AttRef,
ObjectId BlockRefId, out string
AttTextString)
{
Document
doc =
Application.DocumentManager.MdiActiveDocument;
Editor ed =
doc.Editor;
bool
HasBlockplaceholder =
false;
AttTextString =
"";
if
(AttRef.HasFields)
{
// Open the extension
dictionary
DBDictionary extDict = (DBDictionary)tr.GetObject(AttRef.ExtensionDictionary,
OpenMode.ForRead);
const string fldDictName =
"ACAD_FIELD";
const string fldEntryName =
"TEXT";
// Get the field
dictionary
if
(extDict.Contains(fldDictName))
{
ObjectId fldDictId =
extDict.GetAt(fldDictName);
if (fldDictId !=
ObjectId.Null)
{
DBDictionary fldDict = (DBDictionary)tr.GetObject(fldDictId,
OpenMode.ForRead);
// Get the field
itself
if
(fldDict.Contains(fldEntryName))
{
ObjectId fldId =
fldDict.GetAt(fldEntryName);
if (fldId !=
ObjectId.Null)
{
DBObject obj = tr.GetObject(fldId,
OpenMode.ForRead);
Field fld = obj as
Field;
if (fld !=
null)
{
string strBlockRefId =
BlockRefId.ToString();
strBlockRefId = strBlockRefId.Substring(1, strBlockRefId.Length - 2);
string fldCode =
fld.GetFieldCode();
if
(fldCode.Contains("?BlockRefId"))
{
HasBlockplaceholder =
true;
AttTextString = FieldTextBlockplaceholder(fld,
strBlockRefId);
}
}
}
}
}
}
}
return
HasBlockplaceholder;
}
/// <param
name="objField">AttributeReference</param>
/// <param name="BlockRefIdFieldText">Id of the BlockReference as string
like "%<
\\_ObjId " + BlockRefId +
">%"</param>
///
<param name="AttTextString">The TextString for the
Attribute</param>
///
<returns>"True" if Field has a Blockplaceholder, "False" if
not</returns>
private static
string FieldTextBlockplaceholder(Field objField, string
BlockRefIdFieldText)
{
Document
doc =
Application.DocumentManager.MdiActiveDocument;
Editor ed = doc.Editor;
FieldCodeWithChildren fldWChidren = objField.GetFieldCodeWithChildren();//
(FieldCodeFlags.TextField);
Field[] Kinder =
fldWChidren.Children;
string AttTextString = fldWChidren.FieldCode;
int
CountChild =
0;
foreach
(Field var in
Kinder)
{
string FieldChildren =
var.GetFieldCode();
string newFieldChildText =
"";
++CountChild;
if
(FieldChildren.Contains("?BlockRefId"))
{
string Search =
"?BlockRefId";
newFieldChildText = FieldChildren.Replace(Search, BlockRefIdFieldText);
}
else
{
newFieldChildText =
FieldChildren;
}
string StringIDChildren =
var.Id.ToString();
StringIDChildren = StringIDChildren.Substring(1, StringIDChildren.Length -
2);
string SearchAtt = "
\\_FldId " +
StringIDChildren;
AttTextString = AttTextString.Replace(SearchAtt, newFieldChildText);
}
return
AttTextString;
}
