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I have developed a short piece of code to disable clicking column headers for columns than cannot be sorted-by. This code simply uses the customization of header control as presented in “Indicating sort order” article. I just added slight more functionality to that header control. 1. I define a prototype and a variable in a […]

m_listctrl.SetColumnWidth( 0, LVSCW_AUTOSIZE ); The following was contributed by Roger Onslow. Here is a routine to auto-size columns. This routine allows for a minimum column width (so columns don’t disappear, or get too small for inplace editing) and fits to the larger of the column heading and the actual cell values. Declare the following functions: […]

Again we have to override the OnNotify() function. The code below restricts the columns to a minimum width of 80 pixels. The logic can be extended to restrict the width within a range or even specify different range for different columns. To extend the functionality, you would need to add member variables to the class […]

The CListCtrl::InsertColumn() is used to add a column to the list view control. This function can be used even if the control is not in the report mode. When using this function you should remember to specify the nSubItem argument (or the iSubItem field if you are using the LV_COLUMN structure). The nSubItem is usually […]

The header control in the ListView control sends notification to the parent window (e.i. the ListView) before it begins resizing a column. We can override the OnNotify() function in the CListCtrl derived class to handle this notification. The code below prevents resizing of all columns. Note that the resize cursor still shows up. BOOL CMyListCtrl::OnNotify(WPARAM […]

This article was contributed by Charles Herman. Zafir’s article Prevent column resizing describes a method to prevent resizing of columns. However the method does not prevent the cursor from changing its shape. Furthermore the columns can still be resized if the user double clicks on a column separator. In this article I persent a method […]

The HitTest() function provided by the CListCtrl class returns only the row index of the item that falls under the point being tested. The HitTest() also has the drawback that it fails if the point is not directly over the first column. To determine the row of the item, we use GetItemRect() to get the […]

To get the number of columns in the list view control, we first get a pointer to the header control and then use the header control to query the number of columns it has. CHeaderCtrl* pHeader = (CHeaderCtrl*) m_listctrl.GetDlgItem(0); int nColumnCount = pHeader->GetItemCount(); This works even when the listview control has the LVS_NOCOLUMNHEADER style. It […]

One of the notification that the header control sends is the HDN_ITEMCLICK notification. This leads us to wrongly expect a corresponding notification for a right click. The control does send a notification for a right button click, but this is a generic notification sent by all new controls in the form of NM_RCLICK. Although you […]

To set the background color of a column, the list view control has to be owner drawn. In an owner drawn control, each row is drawn by the application program rather than by the control. So when drawing a row, the background color can be set to our choice within the rectangle occupied by a […]

Changing the color of a single row is achieved in essentially the same way as changing the background color of the entire control. See ‘Change background color’. Instead of using the same color for all rows, use a row specific color. If you want to be able to add any color to any row then […]

Changing the background color of a listview control is very easy if you are already using an owner drawn control. See ‘Selection highlighting of entire row’ for code on how to implement an owner drawn listview control. Once the basic owner draw code is in place all you need to do to get a different […]