Userform and Ranges
You can use a RefEdit control in Excel VBA to get a range from a user. The Userform we are going to create colors the minimum value of the range stored in the RefEdit control.
To create this Userform, execute the following steps.
1. Open the Visual Basic Editor. If the Project Explorer is not visible, click View, Project Explorer.
2. Click Insert, Userform. If the Toolbox does not appear automatically, click View, Toolbox. Your screen should be set up as below.
3. Add the label, RefEdit control and command buttons. Once this has been completed, the result should be consistent with the picture of the Userform shown earlier. For example, create a RefEdit control by clicking on RefEdit from the Toolbox. Next, you can drag a RefEdit control on the Userform.
Note: If your toolbox does not have a RefEdit control, set a reference to RefEdit control. Click Tools, References, and check Ref Edit Control.
4. You can change the names and the captions of the controls. Names are used in the Excel VBA code. Captions are those that appear on your screen. It is good practice to change the names of the controls, but it is not necessary here because we only have a few controls in this example. To change the caption of the Userform, label and command buttons, click View, Properties Window and click on each control.
5. To show the Userform, place a command button on your worksheet and add the following code line:
Private Sub CommandButton1_Click()
UserForm1.Show
End Sub
We are now going to create the Sub UserForm_Initialize. When you use the Show method for the Userform, this sub will automatically be executed.
6. Open the Visual Basic Editor.
7. In the Project Explorer, right click on UserForm1 and then click View Code.
8. Choose Userform from the left drop-down list. Choose Initialize from the right drop-down list.
9. Add the following code lines:
Private Sub UserForm_Initialize()
Sheet1.Cells.Font.Color = vbBlack
UserForm1.RefEdit1.Text = Selection.Address
End Sub
Explanation: the first code line changes the font color of all the cells on sheet1 to black. The second code line obtains the address of the current selection and displays it in the RefEdit control.
We have now created the first part of the Userform. Although it looks neat already, nothing will happen yet when we click the command buttons on the Userform.
10. In the Project Explorer, double click on UserForm1.
11. Double click on the Go button.
12. Add the following code lines:
Private Sub CommandButton1_Click()
Dim addr As String, rng, cell As Range, minimum
As Double
addr = RefEdit1.Value
Set rng = Range(addr)
minimum = WorksheetFunction.Min(rng)
For Each cell In rng
If cell.Value = minimum Then cell.Font.Color = vbRed
Next cell
End Sub
Explanation: first, we get the address from the RefEdit control and store it into the String variable addr. Next, we set rng to the range specified in the RefEdit control. Next, we use the worksheet function Min to find the minimum value in the range. Finally, we color the minimum value(s) using a loop.
13. Double click on the Cancel button.
14. Add the following code line:
Private Sub CommandButton2_Click()
Unload Me
End Sub
Explanation: this code line closes the Userform when you click on the Cancel button.
15. Test the Userform.
Result:
Next Chapter: Range
