<div>
<div class="content wysiwyg-content">
i have a menu as follows:<br />
&nbsp; &nbsp;m_category<br />
&nbsp; &nbsp; &nbsp; &amp;Delete<br />
&nbsp; &nbsp; &nbsp; &amp;Insert<br />
<br />
I wanna using this menu as popup in my datawindow(dw_category1) which is in a tab object (tab_category.tab_page1)<br />
<br />
following is my code in rbuttondown event of tab_category.tab_page1.dw_<wbr />category1:<wbr /><br />
m_category.popmenu(Pointer<wbr />X(), PointerY())<br />
<br />
following is the error message:<br />
Null object reference in rbuttondown event of object dw_category1
</div>
</div>


i have a menu as follows:
   m_category
      &Delete
      &Insert

I wanna using this menu as popup in my datawindow(dw_category1) which is in a tab object (tab_category.tab_page1)

following is my code in rbuttondown event of tab_category.tab_page1.dw_category1:
m_category.popmenu(PointerX(), PointerY())

following is the error message:
Null object reference in rbuttondown event of object dw_category1

Using simple popup menu..

Development in most programming languages is frequently done with an editor or integrated development environment (IDE). An IDE is a software application that provide comprehensive facilities to computer programmers for software development. An IDE normally consists of a source code editor, build automation tools and a debugger. XCode, Visual Studio, Adobe Dreamweaver and Eclipse are some of the more popular development tools, but an editor or IDE can be anything from simple text editors to sophisticated programs. Related topics: All programming and development language, database and web based content management systems topics