How to insert items in CheckListBox in VB.2017 Windows Form in Design Mode?

In VB.NET 2017, you can insert items into a CheckedListBox control directly in Design Mode through the Properties window. Follow these steps:

1. Open your Windows Forms project in Visual Studio 2017.

2. Drag and drop a CheckedListBox control from the Toolbox onto your Windows Form.

3. With the CheckedListBox selected, open the Properties window by pressing "F4" or by clicking on the Properties tab in the Solution Explorer.

4. In the Properties window, locate the "Items" property.

5. Click on the ellipsis (...) button next to the "Items" property to open the "String Collection Editor."

6. In the "String Collection Editor," you can add, edit, or remove items from the CheckedListBox.

   • To add an item, type the text of the item in the text box at the bottom and click "Add."

   • To edit an existing item, select the item in the list, modify the text in the text box at the bottom, and click "Update."

   • To remove an item, select the item in the list and click "Remove."

   • Click "OK" when you're done adding or editing items.

7. The items you added or modified will now be displayed in the CheckedListBox in Design Mode.

You can also add items programmatically in code using the Items property of the CheckedListBox control. For example:

vbCopy code
' Assuming you have a CheckedListBox named "checkedListBox1" on your form



Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

    ' Add items programmatically

    checkedListBox1.Items.Add("Item 1")

    checkedListBox1.Items.Add("Item 2")

    checkedListBox1.Items.Add("Item 3")

End Sub

Both methods allow you to populate the CheckedListBox with items either at design time or runtime, depending on your specific needs.