Difference between combobox and dropdownlist

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C#

C#4.0

What's the difference combo box and drop down list?
Under what conditions should any of them be used?

Posted 5-Sep-11 20:46pm

satya praveen

Updated 5-Sep-11 20:52pm

Prerak Patel

v2

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Prerak Patel 6-Sep-11 2:53am

What is your problem?

2 solutions

Solution 1

It is not clear what you are asking. If this is a general question, check this link.
http://msdn.microsoft.com/en-us/library/aa511458.aspx[^]

If you are talking about controls, ComboBox[^] is forms control while DropDownList[^] is web control.

Posted 5-Sep-11 20:52pm

Prerak Patel

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Member 11194801 28-May-15 4:41am

how i will insert textbox data to dropdownlist in winforms

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GParkings · Accepted Answer · 2011-09-05T22:43:00

The terms ComboBox and DropDownList are both commonly used to describe the System.Windows.Forms.ComboBox control.

There is a subtle difference (not always observed), however. The comboBox class has a DropDownStyle property that can be set to one of the following (descriptions ripped starigt from the MSDN page: http://msdn.microsoft.com/en-us/library/system.windows.forms.comboboxstyle.aspx):

Simple

Specifies that the list is always visible and that the text portion is editable. This means that the user can enter a new value and is not limited to selecting an existing value in the list. 

DropDown

Specifies that the list is displayed by clicking the down arrow and that the text portion is editable. This means that the user can enter a new value and is not limited to selecting an existing value in the list. When using this setting, the Append value of AutoCompleteMode works the same as the SuggestAppend value. This is the default style. 

DropDownList

Specifies that the list is displayed by clicking the down arrow and that the text portion is not editable. This means that the user cannot enter a new value. Only values already in the list can be selected. The list displays only if AutoCompleteMode is Suggest or SuggestAppend.

Therefore the term DropDownList is often used to describe a combobox with a drop down style of DropDownList, i.e. a combobox with a non-editable text field