7/4/2015 ASP.NETWebControl:TheRadioButtonList

http://www.csharpkey.com/aspnet/controls/radiobuttonlist.htm 1/3

WebControl:TheRadioButtonListRadioButtonListFundamentalsIntroductionToassistyouwithcreatingagroupofradiobuttons,youcanusetheRadioButtonListcontrol.This control is implemented by the RadioButtonList class defined in theSystem.Web.UI.WebControlsnamespaceoftheSystem.Web.dllassembly.

CreatingaRadioButtonListTovisuallycreatearadiobuttonlist,fromtheStandardsectionoftheToolbox,youcandragRadioButtonListanddropitontheform.Youwouldbeaskedtocreateeachitemofthegroup.Todothis,youcanclickitsarrowbuttonandclickEditItems,thenusetheListItemCollectionEditor:

Iftheradiobuttonlistwasalreadycreated,toaccesstheListItemCollectionEditor,clicktheradiobuttonlistontheform.InthePropertieswindow,clickItemsandclickbrowsebutton.

Tomanuallycreateagroupofradiobuttons,createantagontheform:

Exercise

Exercise

Tocreateeachitemofthegroup,

IfyouareusingtheListItemCollectionEditor,clickAddIfyouareworkingmanually,betweentheopeningandtheclosingtags,createanasp:ListItemtagwithitsownstartingandclosingtags:

Exercise

7/4/2015 ASP.NETWebControl:TheRadioButtonList

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CharacteristicsofaRadioButtonListTheCaptionsofRadioButtonsObviouseachradiobuttonshoulddisplaytexttoshowwhatitisusedfor:

IfyouareworkingintheListItemCollectionEditor,ontheleftside,clickanitem.Ontherightside,clickTextandtypethedesiredstringIfyouareworkingmanually,tospecifythecaptionofaradiobutton,typeitsstringbetweenthebeginningandtheendingtags

Hereareexamples:

Exercise

MaleFemaleUnknown

Thiswouldproduce:

TheCaptionAlignmentofaRadioButtonBydefault, the captions of the radiobuttons arepositionedon the right side of their roundboxes. This characteristic is controlled by the TextAlign attribute of the RadioButtonListcontrolandwhosedefaultvalueisRight.Ifyouwantthecaptionstobepositionedtotheleft,assigntheLeftstringtothisattribute.Hereisanexample:

Exercise

7/4/2015 ASP.NETWebControl:TheRadioButtonList

http://www.csharpkey.com/aspnet/controls/radiobuttonlist.htm 3/3

MaleFemaleUnknown

Thiswouldproduce:

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