RE: function template

From: (Charles Wang[MSFT])
Thu, 16 Aug 2007 10:10:54 GMT
Hi Manjree,
Thanks for your email and sending me your sample project.
This indeed helped me reproduce your issue at my side. From my research,
it seemed to be a product issue when a function template (or a class
template) was declared in one file and implemented in another file.

I am trying to consult the Dev team to confirm this. If there is any
response, I will let you know.
Now, as a workaround, I recommend that include both of the function
template declaration and implementation in the header file ListCtrlSetup.h.
For example:

#pragma once
#include "stdAfx.h"
#include "CheckListCtrl.h"

ref class CListCtrlSetup
template<class T>
void InsColumn(T& lst, System::Data::DataTable^ table)
                 DataColumnCollection^ columns = table->Columns;
                 DataColumn^ column;
                 CString str;
                 int i, col = columns->Count;
                 for(i=0; i<col; i++){
                                 column = columns[i];
                                 str = column->ColumnName;
                                 lst.InsertColumn(i, str);
 catch(Exception^ e)
                MessageBox::Show(e->Message, L".NET Exception Thrown",

// Set the widths for the list columns
template<class U> void SetColWidth(U& lst)
                                int nColumnCount =
                                //Set the column width for all the columns
                                for(int i=0; i<nColumnCount; i++)
                catch(Exception^ e)
                                MessageBox::Show(e->Message, L".NET
Exception Thrown",
                void InsItem(CListCtrl& lst, DataTable^ table,int initRow);
                void InsItem(CCheckListCtrl& lst, DataTable^ table,int
                void DeleteAllColumns(CListCtrl& lst);
                int GetSelectedItem(CListCtrl& lst);


If you have any other questions or concerns, please feel free to let me
know. It is my pleasure to be of assistance.

Best regards,
Charles Wang
Microsoft Online Community Support
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