CheckBoxList

Properties ofCheckBoxList

Property	Description
CellPadding	Between border and contents of the cell
CellSpacing	Distance between cells
RepeatColumns	How many columns to display in checkboxlist control
RepeatDirection	Vertical or Horizontal
RepeatLayout	Flow or Layout(default)
TextAlign	Left or Right

Bind checkBoxList to an Array

• Open Visual Studio
• Add a new webform call it check1.aspx

• Type Pick your favorite Munster:
• Drag a checkBoxList control to the page
• Name it chkMunster
• Double-click the page and add this code in the page_load:

dim Munsters=New ArrayList Munsters.Add("Herman") Munsters.Add("Lily") Munsters.Add("Grandpa") Munsters.Add("Eddie") Munsters.Add("Marylyn") Munsters.TrimToSize() if Not Page.IsPostBack then chkMunsterList.DataSource= Munsters dataBind() end if

• Test it

Now Let’s add additional code to change how the checkboxlist displays:

• Add a checkbox control
• Name it chkMode
• Set text to Display Vertically
• Set checked to true
• Set autopostback to true
• Double-click the checkbox and add this code:

If chkMode.checked then

chkMunsterList.RepeatDirection=RepeatDirection.Vertical

else

chkMunsterList.RepeatDirection=RepeatDirection.horizontal

end if

 

Display selected items from the list when the button is clicked

• Add a label control name it lblDisplay
• Add a button control
• Double-click the button

Add this code to the button click event:

Dim labelString="You Selected:<br />" Dim myCount as Integer for myCount=0 to chkMunsterList.Items.Count-1 if chkMunsterList.Items(myCount).Selected then labelString+=chkMunsterList.Items(myCount).Text labelString+="<br />" end if next lblDisplay.text=labelString