Custom ListBox with columns

   ClientsLB.Init( 20, tmpRect2, this, IDC_CLIENTLB );

Then I am adding tab stops to the control, meaning that I am telling the control where to put each column. This is done by calling

   SetTabStop( short ColumnIndex, short ColumnPosition )

In this application I am using the position of the edit controls above my list box in order to set the tabs position.

   AddString( "column1#column2#column3" )

The control will extract every column and will display it at the appropriate position, as given by SetTabStop().

The control has a function called GetCurrentID(). This function returns the first column of the selected item as a CString, it is assumed that this is an id column. If there is no current selection in the list box, it returns "NS".

It also has a function called ExtractString(). You must call this function twice. The first time with CMD_RESET as the first parameter and a string to analyze as the second. The string is copied to the internall buffer and then by calling the function again with CMD_NEXT as the first parameter we are getting the extracted CString in the second. Every time called it returns the next column of the given string. The function returns the index of the extracted column or -1 if there is not another column in the given string.

So by using the AddString we are adding data to the listbox and by using GetText we are getting a string from it. By calling ExtractString we are getting the columns of the above string.

You can read the CPizzaDlg::OnAddNew() in order to see how we can format the strings we add to the list box.

Last updated: 4 July 1998