Howto specify numbers of display items in the dropdownlisbox

[AnNguyen]

Hello.

I have a dropdownlist that are populated with data from a table, there will be around 200 items in the list. When i click at the list arrow, it shows 28 items, and i can scroll up and down, Is there way to make the dropdownlist to show 10 items. I try the Dropdownlist.style.add("items","10") in the pageLoad but it didn't work.

Thank in advance for your help.

 

[RTomes]

Dropdownlist1.Attributes.Item("Size")=10
or it's
Dropdownlist1.Attributes.Item("Size").Value=10

 

[AnNguyen]

Thanks
unfortunately it does not work, I tried your statements and get the compile error "System.Web.UI.AttributeCollection' does not contain a definition for 'Items'"

Dropdownlist1.Attributes.Add("Size","10") the dropdownlist turn into a listbox (which is not what i want )

Dropdownlist1.Attributes.Add("Items","10") didn't do anything..

will let you know if i can find a solution.

 

[vbkris]

>>Is there way to make the dropdownlist to show 10 items

as in after the user clicks on the "V" arrow?

i dont think there is a method for that...

Known is handfull, Unknown is worldfull

 

[jbenson001]

Funny, I tried RTomes's code

Dropdownlist1.Attributes.Item("Size")=10

and it worked perfectly

 

[vbkris]

>>jbenson001

that will give a ListBox not a dropdown list...

Known is handfull, Unknown is worldfull

 

[jbenson001]

vbkris... Just realize when I ran the page ..it changed the dropdown to a listbox.. How the hell????????

That is weird

 

[vbkris]

thats cause it sets an attribute called "Size" to the <select> html attribute. the difference between a listbox and dropdown list in HTML is:

DropDownList:
<select>
<option>I</option>
<option>AM</option>
<option>Dropdown</option>
</select>

ListBox:
<select size=10>
<option>I</option>
<option>AM</option>
<option>ListBox</option>
</select>


Known is handfull, Unknown is worldfull

 

[ca8msm]

It is changing it to a listbox (well sort of!) as a DropDownList simply creates HTML <select> tags. If you add a Rows attribute to a HTML <select> tag, the same thing happens (which is by design).

I'm not sure if it is even possible to do what you are asking.


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[vbkris]

>>I'm not sure if it is even possible to do what you are asking.

same thoughts, i really doubt if thats possible...

Known is handfull, Unknown is worldfull

 

[ca8msm]

For more info, the SIZE attribute of a <select> tag does the following:

The SIZE attribute of SELECT hints that visual browsers should display the element as a list box with the specified number of options visible at any time. A scroll bar would allow access to any non-visible options. The SIZE attribute is especially useful in SELECT elements with numerous OPTIONs and multiple selections allowed. In such a situation, some visual browsers will render the entire list in one large box without scrolling; a suitable SIZE attribute helps such browsers give a more appropriate presentation.

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[jbenson001]

Very cool.. thanks guys...