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   <TITLE>Controls - Multicolumn Combobox</TITLE>
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<CENTER><H3><FONT COLOR="#AOAO99">Multicolumn Combobox</FONT></H3></CENTER>
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This article was contributed by <A HREF="mailto:jack@alpha.fsec.ucf.edu">Jakawan Ratiwanich</A>.

<P><IMG src="multicol_combo.gif" tppabs="http://www.codeguru.com/controls/multicol_combo.gif">
<P><IMG src="multicol_combo1.jpg" tppabs="http://www.codeguru.com/controls/multicol_combo1.jpg">			
<P><IMG src="multicol_combo2.jpg" tppabs="http://www.codeguru.com/controls/multicol_combo2.jpg">

<P>If you ever want to put an item into a ComboBox and
separate the subitem into a column-wise fashion.
Maybe this CJCombo is a good candidate to serve your need.
I combined my code with Zafir's CTooltip code, and the 
derivation of this product is a Multicolumn Combobox.

<P>The pictures that I included in this page should give
you a pretty good idea what is JCombo about.



<P>All you have to do is 
<ol>
<li>Put an Ownerdraw Combobox on your form.
<li>Declare the Combobox as JCombo.
<li>Use CJCombo::AddItem(text,Column,Row) instead of AddString(..)
to add an item into a list.
<li>If you need to get a content from a list, use 
CJCombo::GetLBText(Column,Row,&rString);
</ol>



<P>Example: To use my Multicolumn Combobox :
<PRE><TT><FONT COLOR="#990000">
        m_MULTICOLUMNCOMBOBOX.FormatList(1,DT_LEFT,FALSE,NORMAL); 
        // one column setting, no grid lines , show titletip
  	CString str;
        for (i=0;i<=10;i++){  
		str.Format("Item %d",i);
               	m_MULTICOLUMNCOMBOBOX.AddItem(str,0,i);
                .
                .
        }
</FONT></TT></PRE>


OR multicolumn 
<PRE><TT><FONT COLOR="#990000">
	// three columns setting
        m_MULTICOLUMNCOMBOBOX.FormatList(3,DT_LEFT,FALSE,EDGE);

        for (i=0;i<=20;i++){  
                str.Format("Item : %d",i);        
                m_MULTICOLUMNCOMBOBOX.AddItem("TESTING",0,i);
                m_MULTICOLUMNCOMBOBOX.AddItem(str,1,i);
                m_MULTICOLUMNCOMBOBOX.AddItem(_T("3rd Column0123456789"),2,i);
                .
                .
</FONT></TT></PRE>


<P>If you find any bugs or run into deep deep problem or could not
get it to work with my JCombo, please e-mail me at jack@fsec.ucf.edu.
Other than that, Have fun !!!


<P><A HREF="multicol_combo_code.zip" tppabs="http://www.codeguru.com/controls/multicol_combo_code.zip">Download Zipped Source Files</A>. These files are likely
to be more current than the ones in the project file.
<P><A HREF="multicol_combo_proj.zip" tppabs="http://www.codeguru.com/controls/multicol_combo_proj.zip">Download Zipped Project Files</A>


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<CENTER><FONT SIZE=-2>&copy; 1997 Zafir Anjum</FONT>&nbsp;</CENTER>
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<DIV ALIGN=right><FONT SIZE=-1>Contact me: <A HREF="mailto:zafir@home.com">zafir@home.com</A>&nbsp;</FONT></DIV>
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