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VBA, Multi Column ListBoxes

Jul 13, năm ngoái by azurous in GUI

In this article I will explain how you can work with alistbox with multiple columns. In thefigure below you can see an example of what a multi columnlistboxwould look like:

Tóm lược đại ý quan trọng trong bài

• VBA, Multi Column ListBoxes
• CreatingMulti Column Listboxes:
• Modifying Column Width:
• Modify Listbox Data:
• Filling a Multi Column Listbox With Data:
• Get Selected Items, From Columns:

Contents

• CreatingMulti Column Listboxes:
• Modifying Column Width:
• Modify Listbox Data:
• Filling a Multi Column Listbox With Data:
• Get Selected Items, From Columns:

CreatingMulti Column Listboxes:

There are several methods for creatinga multi column listbox.

Method 1, Using the property window:

After inserting a listbox onto the userform, you can define the number of columns using the property window. Change the Column Count Property to the number of columns you wish to have:

Method 2, Through VBA Code:

If you dont know the number of columns you will be needing before runtime, you can set the number of columns using VBA through theColumnCount property. The code below will create 3 columns for our listbox:

ListBox1.ColumnCount = 3

Modifying Column Width:

Again there are several methods for modifying thewidthof the columns:

Method 1, using the property window:

In this method the column widths are defined by modifying the ColumnWidths property in the property windows. The width of each column isseparatedusing a semicolon. For a listbox with 3 columns, the expression below would changethe width of the leftmostcolumn to 30 and the middle column to 20. Note that the last column will take up any space that is left. The values are from left to right:

30;20

Note: When working in Excel, the width unit will be in points while in access it will be in inches.

Method 2, Through VBA Code:

Another method for changing the column widths is using VBA at runtime. This is specially useful when you dont know the size of your columns before running the code. The columns widths can be changed using the ColumnWidths property. The code below will change the width of the left mostcolumnto 30 and the next column to 20. The last column will always take up whateverspacethere is left:

ListBox1.ColumnWidths = “30;20”

Modify Listbox Data:

The items in a multi columnlistboxcan be accessed using the .Listthành viên. This thành viên accepts two parameters as input:

ListBox1.List(RowIndex, ColumnIndex)

RowIndex: The row index of the record we want to access. Note the rows in a listbox are zero based. Therefor the index of the first row is 0 (zero).

ColumnIndex: The column index of the field we want to access. Note the columns in a multi columnlistboxare also zero indexed. Therefore the first column has an index of 0 (zero).

Example:

Lets say we have alistboxwith the following data:

The code below will change the value in the first column of the second rowto NEWNAME:

ListBox1.List(1, 0) = “NEWNAME”

Result:

The row Allen Mathews 478-4578 was changed to NEWNAME Mathews 478-4578:

Filling a Multi Column Listbox With Data:

In order to fill a multi column listbox with data there are 2 steps:

Step 1, Create a new row:

This can be done using the code below:

ListBox1.AddItem

Step 2, Modify the new row:

Using the methodexplainedin the previous section the fields of the new row are be modified.

Example:

The code below will do the follwing:

Change ListBox1to a 4 column listbox.

Modify its column widths

Add values to the 4 columns.

Sub main()
Dim i As Integer
‘define 4 column listbox
ListBox1.ColumnCount = 4
‘change column widhts
ListBox1.ColumnWidths = “20;40;60”

‘assing values to the columns
For i = 1 To 9
ListBox1.AddItem
ListBox1.List(i – 1, 0) = i
ListBox1.List(i – 1, 1) = i * 10
ListBox1.List(i – 1, 2) = i * 100
ListBox1.List(i – 1, 3) = i * 1000
Next i
End Sub

Result:

Get Selected Items, From Columns:

In order to determine the selected items in a listbox, the .Selectedproperty of the list box could be used:

ListBox1.Selected(RowIndex)

Theexpressionabove returns true if the user has selected the row with the index RowIndex. One way to determine the selected indices is to loop through all the rows, and use the .Selectedproperty to determine if the current rowis selected or not.

After determining if the items is selected or not, you can use the .Listthành viên to get the value fromthe desired column.

Example:

Lets say we have the userform below:

The function below will store the values in the second column of the selected rows in the array, arrLastNames:

Sub Example2()
Dim arrLastName(1 To 100) As String
Dim i As Integer
Dim counter As Integer

counter = 1
‘loop through the values in the listbox
For i = 1 To ListBox1.ListCount
‘check if the current value is selected
If ListBox1.Selected(i – 1) = True Then
‘add the value in the last name column to the
‘array
arrLastName(counter) = ListBox1.List(i – 1, 1)
counter = counter + 1
End If
Next i
End Sub

Assume the following values have been selected in the list box:

Result:

You can tải về the file and code related to this article from the links below:

• Listbox_GetSelected.xlsm
• ListBox_Fill.xlsm

See also:

• ListBox Object Members (MSDN)

If you need assistance with your code, or you are looking for a VBA programmer to hire feel không lấy phí to contact me. Also please visit my website software-solutions-trực tuyến

Tagged with: Listbox, Multi Column, VBA

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