VB.NET：CheckBoxList-以编程方式将项目设置为“已检查”

Question

I pass in comma separated values to this function, and check items in a checkboxlist according to the values. But there are no items checked after the function call.

For example, I pass in a string "1,5,8", hoping the 3 items with value of 1,5,8 in the checkboxlist will get "checked = true" status. But they don't.

Private Sub GetListValuesFromCommaSeparatedValueString(ByRef lst As CheckBoxList, s As String)
    If IsNothing(s) Or s = "" Then
        Exit Sub
    End If

    Dim array = s.Split(",")

    For Each value As String In array
        lst.Items.FindByValue(value).Selected = True
    Next

End Sub

Answer 1

您应该使用选中的属性，选中的属性仅突出显示列表中的某些项目

lst.Items.FindByValue(value).Checked = True

Answer 2

You'd want the Checked property of CheckBox not Selected .

For Each value As String In array
    lst.Items.FindByValue(value).Checked = True
Next

More info on Checked .