LIST CONTROL编辑单元格

Introduction

Almost every one of us who are programming in VC++ , will come across the List control. There are many cases where there is a need to represent data in List Control in multiple columns. By default it is not possible to modify the data in the List control itself. In this small article I am putting a simple way to edit any value in any column in a Report style List control. The logic here is simple, whenever user clicks on an sub-item which he wants to modify at that place I am displaying a edit box and allowing to modify the value. Once modified and by clicking the ENTER key, the updated value is set in the List control. Here I am assuming the user is familiar with VC++ and using Class Wizard

Implementation steps:

ing MFC AppWizard, create a Dialog Based application. Give the

application name as MultipleColumns. By default the wizard adds OK and

Cancel buttons to the Dialog, Remove these two buttons.

2.Now Add a List-Control and in properties change the style to Report, this

style is necessary if we want multiple columns

3.Add two buttons to the Dialog and name them as OK and Exit

4.Add one Edit box and in the properties remove the Border style

ing the Class Wizard add the message handlers for the OK and Exit

Buttons. Add the following code to those functions

6.Add a function called InsertItems() to the CMulipleColumnsDlg class.

In the function handler add the following code

7.Add another function called SetCell( ) to

the CMultipleColumnsDlg class

In the function handler add the following code

8.Add one more function called GetItemText() to the same Class

Inside the function add the following code

9.Also add two member variables to the CMultipleColumnsDlg class which

are of type int

10.From the Class wizard add NM_CLICK notification to the List control. Inside

the function handler write the following code

11.To handle the ENTER key we need to write the virtual function OnOk in

the MultipleColumnsDlg.h, so add the following as protected member

In MultipleColumnsDlg.cpp write the following code.

12.The last step in the implementation is add the following code in side

the OnInitDialog function

Conclusion

With this I will hope , it will give an idea to edit any sub items in a List control. License

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