Inserts a string into the list box of a combo box. Preallocates blocks of memory for items and strings in the list-box portion of the combo box. Returns the index of the first visible item in the list-box portion of the combo box. Gets the minimum number of visible items in the drop-down list of the current combo box. Retrieves the locale identifier for a combo box. Gets the length of a string in the list box of a combo box. Gets a string from the list box of a combo box. Retrieves the height of list items in a combo box. Retrieves the application-supplied 32-bit pointer that is associated with the specified combo-box item. Retrieves the application-supplied 32-bit value associated with the specified combo-box item. Returns the width in pixels that the list-box portion of the combo box can be scrolled horizontally. Gets the starting and ending character positions of the current selection in the edit control of a combo box.ĭetermines whether a combo box has the default user interface or the extended user interface. Retrieves the minimum allowed width for the drop-down list-box portion of a combo box. Retrieves the screen coordinates of the visible (dropped down) list box of a drop-down combo box.ĭetermines whether the list box of a drop-down combo box is visible (dropped down). Retrieves the index of the currently selected item, if any, in the list box of a combo box. Gets the cue text that is displayed for a combo box control. Retrieves the number of items in the list box of a combo box. Retrieves information about the CComboBox object. Syntax class CComboBox : public CWndĪdds a string to the end of the list in the list box of a combo box, or at the sorted position for list boxes with the CBS_SORT style.ĭeletes (clears) the current selection, if any, in the edit control.Ĭalled by the framework to determine the relative position of a new list item in a sorted owner-drawn combo box.Ĭopies the current selection, if any, onto the Clipboard in CF_TEXT format.Ĭreates the combo box and attaches it to the CComboBox object.ĭeletes (cuts) the current selection, if any, in the edit control and copies the deleted text onto the Clipboard in CF_TEXT format.Ĭalled by the framework when a list item is deleted from an owner-drawn combo box.ĭeletes a string from the list box of a combo box.Īdds a list of file names to the list box of a combo box.Ĭalled by the framework when a visual aspect of an owner-drawn combo box changes.įinds the first string that contains the specified prefix in the list box of a combo box.įinds the first list-box string (in a combo box) that matches the specified string. Once the visual stuff is working, all that is left is to provide the appropriate Properties and Methods on the main control to allow it to interact as needed with outside code.Provides the functionality of a Windows combo box. You would provide public properties here as needed to control the text and provide an event handler or callback for the delete functionality. For this you could use a Panel control and dock the X button to the right, and fill the Label on the left. However, without some other visual cues, that isn't very intuitive or user-friendly, so I would consider making the "Button" be another composite control which contains a "prettied-up" label along with an tiny delete Button (X) to the right. The container does not have to be FlowLayoutPanel - you could use a Panel with Docked controls, or even a TableLayoutPanel for this.Ī design as I described would allow the user to delete the address by clicking on the button. There may be issues with getting the TextBox to fill up the remaining space (I can't remember how to do that), but you get the idea. If the user removes an address he/she has already selected, simply remove its representation (the button) from the FlowLayoutPanel, and the TextBox can resize accordingly. Once the user selected an entry, the control would automatically create a Button with the appropriate caption and insert it to the left in the FlowLayoutPanel. in a List), then the container (FlowLayoutPanel) would only display the TextBox. If there are no addresses selected in the control (e.g. In you case, and this is just off the top of my head, but, perhaps you could take a FlowLayoutPanel, a Button, and a Textbox which supports auto-complete and put these together to create a control that would provide the functionality you are looking for. It works pretty good as long as there aren't too many of them, in which case things start to slow down. I have had good luck in the past creating composite user-controls to provide specific functionality using native.
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