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Validation list is a list to choose from it which you want, but inserting a combo box is just for one option
Validation allows to add multiple options or listings as per requirements. But, whereas the combo box is just for one option.
A list box displays a list from which the user may make a selection. The default behaviour is to permit a single selection, but multiple selections are also permitted by changing the SelectionMode accordingly.A combo box combines a list box with a text box, but the list is limited to single selections only. Changing the DropDownStyle alters the behaviour of the combo box.
A data validation list doesn't have an auto-complete feature.
If you want that feature you could use an ActiveX combo box from the Developer tab.
A data validation list and a combo box are similar but work differently.
Combo box vs data validation drop down list differences
It depends on what type of combo box you're using. The main difference between a combo box and a data validation drop down list is that a combo box does not occupy a cell. A combo box "floats" above the worksheet. A data validation drop down list does occupy a cell. So, when you make a selection from a data validation drop down list that selection is entered as the value of the cell. When you make a selection from a combo box (there are 2 types of combo boxes) that selected value is not entered into any cell automatically. You have to format the combo box to enter the selection in a cell and the cell can be any cell of your choice. The cell that will hold the selection is called the linked cell. In other words, this cell is linked to this combo box.
You can use Data Validation to create a dropdown list of options in a cell. Also, Data Validation doesn't have an AutoComplete feature, which finds matching items in the list as you start to type.
To overcome these limitations, you can add a combo box to your worksheet, and use programming to make it appear in cells that contain a data validation list
Data validation is a great tool to use if you want to make a list selection. It is a direct listing.
Combo box comes from Developers tab and you can use Form Controls (more simple) and Active X controls (more detailed, similar to MS Access way of structure). In combo box, beside listings, you can also link the list to a specific cell which will change incrementally. This can be used powerfully for variety of reports including dashboards
Validation allows to add multiple options or listings as per requirements. But, whereas the combo box is just for one option.A list box displays list from which you choose from list
Data validation is a great feature, and you can use creative formulas to create flexible lists, such as dependent drop down lists. However, the font size can't be changed, only8 rows are visible at a time, and only the active cell shows a drop down arrow.
You can't change those settings, but you can colour the data entry cells, to make them obvious to the worksheet users.
You can use Data Validation to create a dropdown list of options in a cell. However, the list font can't be changed, nor can the number of visible rows, which has a maximum of eight. Also, Data Validation doesn't have an AutoComplete feature, which finds matching items in the list as you start to type.To overcome these limitations, you can add a combo box to your worksheet, and use programming to make it appear in cells that contain a data validation list.Double-click on a cell that contains a data validation list, and the combo box appears. The combo box's font size can be set, more than 8 rows can be displayed, and autocomplete can be enabled.
The present invention relates a component-based software development technology, and more particularly to so-called the Active Binding Technology which allows the software development by assembling the components released under a component-based development platform. The present invention discloses a new type of component with extended metadata, which includes the interface information about the dependent contract of a component thereby enabling a program developer to assemble the components in a multi-layered structure and/or on the distributed network.
