ComboBox/DateTimePickerBox drop down arrow visible/invisible

ComboBox/DateTimePickerBox drop down arrow visible/invisible

• Jeff Brown

  It is possible if dealing with a DataGridViewComboBoxColumn by setting the DisplayStyleForCurrentCellOnly property. It is not possible for standard ComboBoxes.

  Another alternative to consider would be using a simple TextBox with an AutoComplete source. You may be able to create a custom user control combining a TextBox with a button (with a dropdown arrow icon) and dynamically hiding and showing the button on TextBox focus. The "drop down" list coming from the AutoComplete source.

  Jim Wooley
  http://devauthority.com/blogs/jwooley/default.aspx

  
  
  

• JohnKelley32

  Here is a crude - from newbie to newbie - solution:

  Public Class Form1

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

  End Sub

  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  Private Sub ComboBox1__Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.Enter

  TextBox1.Visible = False

  End Sub

  ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  Private Sub ComboBox1_Leave(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.Leave

  TextBox1.Visible = True

  End Sub

  End Class

  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  To test: 1. Place one ComboBox into your form. 2.Place two TextBox into your form. 3. Drag and reduce the size of TextBox1 to fit over the 'arrow square' of the ComboBox.

  
  
  

• Topher

  No, the Windows combobox control doesn't have a message for that. Good thing, it would be pretty confusing to the user to have to click on the edit box first before they can drop down the list of choices...
  
  
  
  

• road runner

  Hello,

  Bad formulated question.

  Take for example the "ComboBox" Properties Window in Design View. There are several such fields under the "Appearance", "Behaviour", "Data", "Design" "Focus" "Layout" and "Misc" sections which follow the algorithm: the -arrow in a box-is not visible until a Click on is on perfomed on the field.

  Kind regards,

  
  
  

• Jia Li MSFT

  Hello Jim,

  You said: "create a custom user control....." This engendered the idea that instead of TextBox resize (fumbling around), use a picture.

  Private Sub ComboBox1__Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.Enter

  PictureBox1.Visible = False

  End Sub

  Private Sub ComboBox1_Leave(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.Leave

  PictureBox1.Visible = True

  End Sub

  Kind regards,

  ----------------------------------------------------------------------------------------------------------------------------------------

  This newbie can't talk and can't walk. Embarrassing.

  
  
  

• vaio pcgk33

  Nice "out-of-the-box" thinking solution! Use a Panel control to blend with the form's background.
  
  
  
  
• ComboBox/DateTimePickerBox drop down arrow visible/invisible