How to get Selected item in a Databinded CheckBoxList when CheckBoxlist is in a DataList?
 

I'm binding a CheckBoxlist below in the ItemDataBound(the CheckBoxList is in
a Datalist)

By doing "li.Selected = True" i can see all the checkBoxes are selected.

But what i want is to be able to get a Boolean value TRUE or FALSE when a
checkBox is selected.

When the checkBoxList was out of the DataList i used
"OnSelectedIndexChanged" and it was returning what i wanted but if its in a
Datalist

and 'm Binding the CheckBoxList in ItemBound how can i get to it?

Any ideas?

If Not (cblGroups Is Nothing) Then

cblGroups.Visible = True

cblGroups.DataSource = DS

cblGroups.DataTextField = "au_lname"

cblGroups.DataValueField = "au_id"

cblGroups.DataBind()

For Each li As ListItem In cblGroups.Items

' I get all the CheckBoxes selected by doing below

li.Selected = True

Next

End If

Re: How to get Selected item in a Databinded CheckBoxList when CheckBoxlistis in a DataList?
 

How about binding the datalist to the selectedindexchanged event ;)

You can programaticly bind any event of a control to a method of your
choice (as long as that method has the correct signture)

In VB.NET I think you do it with the AddHandler keyword. So you could in
ItemDataBound write something like:

AddHandler cblGroups.SelectedIndexChanged, onSelectedIndexChanged


I'm a C# guy so I'm not 100% certain of the syntax but it would point
you in the right direction I think.

--
Patrik Löwendahl [C# MVP]
http://www.lowendahl.net/ || http://www.cshrp.net
Please reply only to the newsgroup.

Patrick.O.Ige wrote:
> I'm binding a CheckBoxlist below in the ItemDataBound(the CheckBoxList is in
> a Datalist)
>
> By doing "li.Selected = True" i can see all the checkBoxes are selected.
>
> But what i want is to be able to get a Boolean value TRUE or FALSE when a
> checkBox is selected.
>
> When the checkBoxList was out of the DataList i used
> "OnSelectedIndexChanged" and it was returning what i wanted but if its in a
> Datalist
>
> and 'm Binding the CheckBoxList in ItemBound how can i get to it?
>
> Any ideas?
>
> If Not (cblGroups Is Nothing) Then
>
> cblGroups.Visible = True
>
> cblGroups.DataSource = DS
>
> cblGroups.DataTextField = "au_lname"
>
> cblGroups.DataValueField = "au_id"
>
> cblGroups.DataBind()
>
> For Each li As ListItem In cblGroups.Items
>
> ' I get all the CheckBoxes selected by doing below
>
> li.Selected = True
>
> Next
>
> End If
>
>

Re: How to get Selected item in a Databinded CheckBoxList when CheckBoxlist is in a DataList?
 

Thx Patrick for the reply:)
But when the checkBoxList was out of the DataList i used
onSelectedIndexChanged in the CheckBoxList
like so :-

But your advice is that i should add the "onSelectedIndexChanged " to the
DataList instead of the CheckBoxList?


<asp:checkboxlist id="checkboxlist1" Runat="server" AutoPostBack="True"
onSelectedIndexChanged=""Check_Clicked"></asp:checkboxlist></td>

Sub Check_Clicked(ByVal sender As Object, ByVal e As EventArgs)

Dim i As Integer

For i = 0 To checkboxlist1.Items.Count - 1

If checkboxlist1.Items(i).Selected Then

Message.Text = Message.Text & checkboxlist1.Items(i).Selected & "<br>"

Else

Message.Text = Message.Text & "false <br>"

End If

Next

End Sub



"Patrik Löwendahl [C# MVP]" <patrik.lowendahl.no.freakin.spam@home.se> wrote
in message news:erZoNfBdFHA.1412@TK2MSFTNGP10.phx.gbl...
> How about binding the datalist to the selectedindexchanged event ;)
>
> You can programaticly bind any event of a control to a method of your
> choice (as long as that method has the correct signture)
>
> In VB.NET I think you do it with the AddHandler keyword. So you could in
> ItemDataBound write something like:
>
> AddHandler cblGroups.SelectedIndexChanged, onSelectedIndexChanged
>
>
> I'm a C# guy so I'm not 100% certain of the syntax but it would point
> you in the right direction I think.
>
> --
> Patrik Löwendahl [C# MVP]
> http://www.lowendahl.net/ || http://www.cshrp.net
> Please reply only to the newsgroup.
>
> Patrick.O.Ige wrote:
> > I'm binding a CheckBoxlist below in the ItemDataBound(the CheckBoxList
is in
> > a Datalist)
> >
> > By doing "li.Selected = True" i can see all the checkBoxes are selected.
> >
> > But what i want is to be able to get a Boolean value TRUE or FALSE when
a
> > checkBox is selected.
> >
> > When the checkBoxList was out of the DataList i used
> > "OnSelectedIndexChanged" and it was returning what i wanted but if its
in a
> > Datalist
> >
> > and 'm Binding the CheckBoxList in ItemBound how can i get to it?
> >
> > Any ideas?
> >
> > If Not (cblGroups Is Nothing) Then
> >
> > cblGroups.Visible = True
> >
> > cblGroups.DataSource = DS
> >
> > cblGroups.DataTextField = "au_lname"
> >
> > cblGroups.DataValueField = "au_id"
> >
> > cblGroups.DataBind()
> >
> > For Each li As ListItem In cblGroups.Items
> >
> > ' I get all the CheckBoxes selected by doing below
> >
> > li.Selected = True
> >
> > Next
> >
> > End If
> >
> >

Re: How to get Selected item in a Databinded CheckBoxList when CheckBoxlistis in a DataList?
 

No,

My advice is to use the event on the checkboxlist, but to bind it
dynamicly in the ItemDataBound event.

Is it one checkbox list / item in the datalist?

--
Patrik Löwendahl [C# MVP]
http://www.lowendahl.net/ || http://www.cshrp.net
Please reply only to the newsgroup.

Patrick.O.Ige wrote:
> Thx Patrick for the reply:)
> But when the checkBoxList was out of the DataList i used
> onSelectedIndexChanged in the CheckBoxList
> like so :-
>
> But your advice is that i should add the "onSelectedIndexChanged " to the
> DataList instead of the CheckBoxList?
>
>
> <asp:checkboxlist id="checkboxlist1" Runat="server" AutoPostBack="True"
> onSelectedIndexChanged=""Check_Clicked"></asp:checkboxlist></td>
>
> Sub Check_Clicked(ByVal sender As Object, ByVal e As EventArgs)
>
> Dim i As Integer
>
> For i = 0 To checkboxlist1.Items.Count - 1
>
> If checkboxlist1.Items(i).Selected Then
>
> Message.Text = Message.Text & checkboxlist1.Items(i).Selected & "<br>"
>
> Else
>
> Message.Text = Message.Text & "false <br>"
>
> End If
>
> Next
>
> End Sub
>
>
>
> "Patrik Löwendahl [C# MVP]" <patrik.lowendahl.no.freakin.spam@home.se> wrote
> in message news:erZoNfBdFHA.1412@TK2MSFTNGP10.phx.gbl...
>
>>How about binding the datalist to the selectedindexchanged event ;)
>>
>>You can programaticly bind any event of a control to a method of your
>>choice (as long as that method has the correct signture)
>>
>>In VB.NET I think you do it with the AddHandler keyword. So you could in
>> ItemDataBound write something like:
>>
>>AddHandler cblGroups.SelectedIndexChanged, onSelectedIndexChanged
>>
>>
>>I'm a C# guy so I'm not 100% certain of the syntax but it would point
>>you in the right direction I think.
>>
>>--
>>Patrik Löwendahl [C# MVP]
>>http://www.lowendahl.net/ || http://www.cshrp.net
>>Please reply only to the newsgroup.
>>
>>Patrick.O.Ige wrote:
>>
>>>I'm binding a CheckBoxlist below in the ItemDataBound(the CheckBoxList
>
> is in
>
>>>a Datalist)
>>>
>>>By doing "li.Selected = True" i can see all the checkBoxes are selected.
>>>
>>>But what i want is to be able to get a Boolean value TRUE or FALSE when
>
> a
>
>>>checkBox is selected.
>>>
>>>When the checkBoxList was out of the DataList i used
>>>"OnSelectedIndexChanged" and it was returning what i wanted but if its
>
> in a
>
>>>Datalist
>>>
>>>and 'm Binding the CheckBoxList in ItemBound how can i get to it?
>>>
>>>Any ideas?
>>>
>>>If Not (cblGroups Is Nothing) Then
>>>
>>>cblGroups.Visible = True
>>>
>>>cblGroups.DataSource = DS
>>>
>>>cblGroups.DataTextField = "au_lname"
>>>
>>>cblGroups.DataValueField = "au_id"
>>>
>>>cblGroups.DataBind()
>>>
>>>For Each li As ListItem In cblGroups.Items
>>>
>>>' I get all the CheckBoxes selected by doing below
>>>
>>>li.Selected = True
>>>
>>>Next
>>>
>>>End If
>>>
>>>
>
>
>

Re: How to get Selected item in a Databinded CheckBoxList when CheckBoxlist is in a DataList?
 

Yes its one CheckBoxList.
But where should it be added?
Public Sub Item_DataBound(ByVal sender As Object, ByVal e As
DataListItemEventArgs)


"Patrik Löwendahl [C# MVP]" <patrik.lowendahl.no.freakin.spam@home.se> wrote
in message news:uUFRSJCdFHA.2556@TK2MSFTNGP10.phx.gbl...
> No,
>
> My advice is to use the event on the checkboxlist, but to bind it
> dynamicly in the ItemDataBound event.
>
> Is it one checkbox list / item in the datalist?
>
> --
> Patrik Löwendahl [C# MVP]
> http://www.lowendahl.net/ || http://www.cshrp.net
> Please reply only to the newsgroup.
>
> Patrick.O.Ige wrote:
> > Thx Patrick for the reply:)
> > But when the checkBoxList was out of the DataList i used
> > onSelectedIndexChanged in the CheckBoxList
> > like so :-
> >
> > But your advice is that i should add the "onSelectedIndexChanged " to
the
> > DataList instead of the CheckBoxList?
> >
> >
> > <asp:checkboxlist id="checkboxlist1" Runat="server" AutoPostBack="True"
> > onSelectedIndexChanged=""Check_Clicked"></asp:checkboxlist></td>
> >
> > Sub Check_Clicked(ByVal sender As Object, ByVal e As EventArgs)
> >
> > Dim i As Integer
> >
> > For i = 0 To checkboxlist1.Items.Count - 1
> >
> > If checkboxlist1.Items(i).Selected Then
> >
> > Message.Text = Message.Text & checkboxlist1.Items(i).Selected & "<br>"
> >
> > Else
> >
> > Message.Text = Message.Text & "false <br>"
> >
> > End If
> >
> > Next
> >
> > End Sub
> >
> >
> >
> > "Patrik Löwendahl [C# MVP]" <patrik.lowendahl.no.freakin.spam@home.se>
wrote
> > in message news:erZoNfBdFHA.1412@TK2MSFTNGP10.phx.gbl...
> >
> >>How about binding the datalist to the selectedindexchanged event ;)
> >>
> >>You can programaticly bind any event of a control to a method of your
> >>choice (as long as that method has the correct signture)
> >>
> >>In VB.NET I think you do it with the AddHandler keyword. So you could in
> >> ItemDataBound write something like:
> >>
> >>AddHandler cblGroups.SelectedIndexChanged, onSelectedIndexChanged
> >>
> >>
> >>I'm a C# guy so I'm not 100% certain of the syntax but it would point
> >>you in the right direction I think.
> >>
> >>--
> >>Patrik Löwendahl [C# MVP]
> >>http://www.lowendahl.net/ || http://www.cshrp.net
> >>Please reply only to the newsgroup.
> >>
> >>Patrick.O.Ige wrote:
> >>
> >>>I'm binding a CheckBoxlist below in the ItemDataBound(the CheckBoxList
> >
> > is in
> >
> >>>a Datalist)
> >>>
> >>>By doing "li.Selected = True" i can see all the checkBoxes are
selected.
> >>>
> >>>But what i want is to be able to get a Boolean value TRUE or FALSE when
> >
> > a
> >
> >>>checkBox is selected.
> >>>
> >>>When the checkBoxList was out of the DataList i used
> >>>"OnSelectedIndexChanged" and it was returning what i wanted but if its
> >
> > in a
> >
> >>>Datalist
> >>>
> >>>and 'm Binding the CheckBoxList in ItemBound how can i get to it?
> >>>
> >>>Any ideas?
> >>>
> >>>If Not (cblGroups Is Nothing) Then
> >>>
> >>>cblGroups.Visible = True
> >>>
> >>>cblGroups.DataSource = DS
> >>>
> >>>cblGroups.DataTextField = "au_lname"
> >>>
> >>>cblGroups.DataValueField = "au_id"
> >>>
> >>>cblGroups.DataBind()
> >>>
> >>>For Each li As ListItem In cblGroups.Items
> >>>
> >>>' I get all the CheckBoxes selected by doing below
> >>>
> >>>li.Selected = True
> >>>
> >>>Next
> >>>
> >>>End If
> >>>
> >>>
> >
> >
> >

Re: How to get Selected item in a Databinded CheckBoxList when CheckBoxlist is in a DataList?
 

Hi Patrik below is what i have done and still not firing:(
Any ideas what 'm doing wrong?


My CheckBoxList in the DataList Below
-----------------------------------------
<asp:checkboxlist id="checkboxlist1" Runat="server" AutoPostBack="True"
OnSelectedIndexChanged="Check_Clicked"></asp:checkboxlist>

The itemDataBound I created below:-
--------------------------------------

Public Sub Item_Created(ByVal sender As Object, ByVal e As
DataListItemEventArgs) Handles DataList1.ItemDataBound
If e.Item.ItemType = ListItemType.Item Or _
e.Item.ItemType = ListItemType.AlternatingItem
Then

Dim cblGroups As CheckBoxList =
CType(e.Item.FindControl("checkboxlist1"), CheckBoxList)

'This is where i added the Handler
AddHandler cblGroups.SelectedIndexChanged, AddressOf Check_Clicked

Dim DS As DataSet
Dim MyConnection As SqlConnection
Dim MyCommand As SqlDataAdapter

MyConnection = New
SqlConnection("server=(local);database=pubs;integr ated security=true;")
MyCommand = New SqlDataAdapter("select TOP 5 * from Authors",
MyConnection)

DS = New DataSet
MyCommand.Fill(DS, "Authors")


MyConnection.Open()



If Not (cblGroups Is Nothing) Then
cblGroups.Visible = True
cblGroups.DataSource = DS
'cblGroups.DataMember = "Groups"
cblGroups.DataTextField = "au_lname"
cblGroups.DataValueField = "au_id"
cblGroups.DataBind()



End If
MyConnection.Dispose()
End If



End Sub


And here the event thats suppose to fire the CheckBoxList below
----------------------------------------------------------------
Sub Check_Clicked(ByVal sender As Object, ByVal e As EventArgs)
Dim i As Integer
For i = 0 To checkboxlist1.Items.Count - 1
If checkboxlist1.Items(i).Selected Then
Message.Text = Message.Text &
checkboxlist1.Items(i).Selected & "<br>"
Else
Message.Text = Message.Text & "false <br>"
End If

Next

End Sub




"Patrik Löwendahl [C# MVP]" <patrik.lowendahl.no.freakin.spam@home.se> wrote
in message news:uUFRSJCdFHA.2556@TK2MSFTNGP10.phx.gbl...
> No,
>
> My advice is to use the event on the checkboxlist, but to bind it
> dynamicly in the ItemDataBound event.
>
> Is it one checkbox list / item in the datalist?
>
> --
> Patrik Löwendahl [C# MVP]
> http://www.lowendahl.net/ || http://www.cshrp.net
> Please reply only to the newsgroup.
>
> Patrick.O.Ige wrote:
> > Thx Patrick for the reply:)
> > But when the checkBoxList was out of the DataList i used
> > onSelectedIndexChanged in the CheckBoxList
> > like so :-
> >
> > But your advice is that i should add the "onSelectedIndexChanged " to
the
> > DataList instead of the CheckBoxList?
> >
> >
> > <asp:checkboxlist id="checkboxlist1" Runat="server" AutoPostBack="True"
> > onSelectedIndexChanged=""Check_Clicked"></asp:checkboxlist></td>
> >
> > Sub Check_Clicked(ByVal sender As Object, ByVal e As EventArgs)
> >
> > Dim i As Integer
> >
> > For i = 0 To checkboxlist1.Items.Count - 1
> >
> > If checkboxlist1.Items(i).Selected Then
> >
> > Message.Text = Message.Text & checkboxlist1.Items(i).Selected & "<br>"
> >
> > Else
> >
> > Message.Text = Message.Text & "false <br>"
> >
> > End If
> >
> > Next
> >
> > End Sub
> >
> >
> >
> > "Patrik Löwendahl [C# MVP]" <patrik.lowendahl.no.freakin.spam@home.se>
wrote
> > in message news:erZoNfBdFHA.1412@TK2MSFTNGP10.phx.gbl...
> >
> >>How about binding the datalist to the selectedindexchanged event ;)
> >>
> >>You can programaticly bind any event of a control to a method of your
> >>choice (as long as that method has the correct signture)
> >>
> >>In VB.NET I think you do it with the AddHandler keyword. So you could in
> >> ItemDataBound write something like:
> >>
> >>AddHandler cblGroups.SelectedIndexChanged, onSelectedIndexChanged
> >>
> >>
> >>I'm a C# guy so I'm not 100% certain of the syntax but it would point
> >>you in the right direction I think.
> >>
> >>--
> >>Patrik Löwendahl [C# MVP]
> >>http://www.lowendahl.net/ || http://www.cshrp.net
> >>Please reply only to the newsgroup.
> >>
> >>Patrick.O.Ige wrote:
> >>
> >>>I'm binding a CheckBoxlist below in the ItemDataBound(the CheckBoxList
> >
> > is in
> >
> >>>a Datalist)
> >>>
> >>>By doing "li.Selected = True" i can see all the checkBoxes are
selected.
> >>>
> >>>But what i want is to be able to get a Boolean value TRUE or FALSE when
> >
> > a
> >
> >>>checkBox is selected.
> >>>
> >>>When the checkBoxList was out of the DataList i used
> >>>"OnSelectedIndexChanged" and it was returning what i wanted but if its
> >
> > in a
> >
> >>>Datalist
> >>>
> >>>and 'm Binding the CheckBoxList in ItemBound how can i get to it?
> >>>
> >>>Any ideas?
> >>>
> >>>If Not (cblGroups Is Nothing) Then
> >>>
> >>>cblGroups.Visible = True
> >>>
> >>>cblGroups.DataSource = DS
> >>>
> >>>cblGroups.DataTextField = "au_lname"
> >>>
> >>>cblGroups.DataValueField = "au_id"
> >>>
> >>>cblGroups.DataBind()
> >>>
> >>>For Each li As ListItem In cblGroups.Items
> >>>
> >>>' I get all the CheckBoxes selected by doing below
> >>>
> >>>li.Selected = True
> >>>
> >>>Next
> >>>
> >>>End If
> >>>
> >>>
> >
> >
> >