Hi,
I wanted to know how i can enter values into a specific
column of a listview. I have tried the following code but
this seems to enter all my values into the first column!!!
Can anyone please help me out on this??
hers my code so far.....
Private Sub btnSelRoom_Clic k(ByVal sender As
System.Object, ByVal e As System.EventArg s) Handles
btnSelRoom.Clic k
Dim ChosenDate As Date
ChosenDate = dtpRoomDate.Val ue.ToShortDateS tring
Dim ChosenRoom As SqlString
ChosenRoom = CBoxRoomNames.S electedItem
Dim ChosenLayout As SqlString
ChosenLayout = CBoxLayout.Sele ctedItem
Dim ChosenSession As SqlString
ChosenSession = CBoxSession.Sel ectedItem
Dim ChosenGuestNo As String
ChosenGuestNo = txtNoOfGuests.T ext
Dim ChosenMeal As String
Dim FullDescription As String
FullDescription = String.Format(" {0}, {1}, {2}, {3}, {4}",
ChosenDate, ChosenRoom, ChosenLayout, ChosenSession,
ChosenGuestNo)
LViewSelRooms.I tems.Add(FullDe scription)
End Sub
Many thx.
And Merry xmas to all :o)
9  6114 
Hi Eva,
To add items to a listview you have to add "listviewit em"
Have a look at this page, http://msdn.microsoft.com/library/de...classtopic.asp
If you still have problems after that message again OK?
Cor
I wanted to know how i can enter values into a specific
column of a listview. I have tried the following code but
this seems to enter all my values into the first column!!!
Can anyone please help me out on this??
hers my code so far.....
Private Sub btnSelRoom_Clic k(ByVal sender As
System.Object, ByVal e As System.EventArg s) Handles
btnSelRoom.Clic k
Dim ChosenDate As Date
ChosenDate = dtpRoomDate.Val ue.ToShortDateS tring
Dim ChosenRoom As SqlString
ChosenRoom = CBoxRoomNames.S electedItem
Dim ChosenLayout As SqlString
ChosenLayout = CBoxLayout.Sele ctedItem
Dim ChosenSession As SqlString
ChosenSession = CBoxSession.Sel ectedItem
Dim ChosenGuestNo As String
ChosenGuestNo = txtNoOfGuests.T ext
Dim ChosenMeal As String
Dim FullDescription As String
FullDescription = String.Format(" {0}, {1}, {2}, {3}, {4}",
ChosenDate, ChosenRoom, ChosenLayout, ChosenSession,
ChosenGuestNo)
LViewSelRooms.I tems.Add(FullDe scription)
End Sub
Many thx.
And Merry xmas to all :o)
Hi Cor,
thx for the link, it was very useful. im still however
having problems. im trying to insert a value obtained
from a combobox into the subitem of the listview but i
keep getting the following error....
Overload resolution failed because no accessible 'Add'
can be called with these arguments:
'Public Overloads Function Add(text As String) As
System.Windows. Forms.ListViewI tem.ListViewSub Item': Value
of type 'System.Data.Sq lTypes.SqlStrin g' cannot be
converted to 'String'.
'Public Overloads Function Add(item As
System.Windows. Forms.ListViewI tem.ListViewSub Item) As
System.Windows. Forms.ListViewI tem.ListViewSub Item': Value
of type 'System.Data.Sq lTypes.SqlStrin g' cannot be
converted
to 'System.Windows .Forms.ListView Item.ListViewSu bItem'.
I have no idea what im doin wrong!! the code i have has
been pasted below. Can u spot my Mistake??.....
Private Sub btnSelRoom_Clic k(ByVal sender As
System.Object, ByVal e As System.EventArg s) Handles
btnSelRoom.Clic k
Dim ChosenDate As Date
ChosenDate = dtpRoomDate.Val ue.ToShortDateS tring
Dim ChosenRoom As SqlString
ChosenRoom = CBoxRoomNames.S electedItem
Dim ChosenLayout As SqlString
ChosenLayout = CBoxLayout.Sele ctedItem
Dim ChosenSession As SqlString
ChosenSession = CBoxSession.Sel ectedItem
Dim ChosenGuestNo As String
ChosenGuestNo = txtNoOfGuests.T ext
Dim Item1 As New ListViewItem(Ch osenDate, 0)
Item1.SubItems. Add(ChosenRoom)
Item1.SubItems. Add("ChosenLayo ut")
LViewSelRooms.I tems.AddRange(N ew ListViewItem() {Item1})
Many thx -----Original Message-----
Hi Eva,
To add items to a listview you have to add "listviewit em"
Have a look at this page,
http://msdn.microsoft.com/library/default.asp?
url=/library/en-
us/cpref/html/frlrfsystemwind owsformslistvie witemclasstopi
c.asp
If you still have problems after that message again OK?
Cor
I wanted to know how i can enter values into a specific
column of a listview. I have tried the following code
but this seems to enter all my values into the first
column!!!
Can anyone please help me out on this??
hers my code so far.....
Private Sub btnSelRoom_Clic k(ByVal sender As
System.Object, ByVal e As System.EventArg s) Handles
btnSelRoom.Clic k
Dim ChosenDate As Date
ChosenDate = dtpRoomDate.Val ue.ToShortDateS tring
Dim ChosenRoom As SqlString
ChosenRoom = CBoxRoomNames.S electedItem
Dim ChosenLayout As SqlString
ChosenLayout = CBoxLayout.Sele ctedItem
Dim ChosenSession As SqlString
ChosenSession = CBoxSession.Sel ectedItem
Dim ChosenGuestNo As String
ChosenGuestNo = txtNoOfGuests.T ext
Dim ChosenMeal As String
Dim FullDescription As String
FullDescription = String.Format(" {0}, {1}, {2}, {3},
{4}", ChosenDate, ChosenRoom, ChosenLayout, ChosenSession,
ChosenGuestNo)
LViewSelRooms.I tems.Add(FullDe scription)
End Sub
Many thx.
And Merry xmas to all :o)
.
Hi Eva,
It is always a gamble but I think this can it be Dim Item1 As New ListViewItem(Ch osenDate, 0)
Item1.SubItems. Add(ChosenRoom)
Item1.SubItems. Add("ChosenLayo ut")
LViewSelRooms.I tems.AddRange(N ew ListViewItem() {Item1})
Dim Item1 As New ListViewItem(Ch osenDate, 0)
Item1.SubItems. Add(ChosenRoom)
Item1.SubItems. Add("ChosenLayo ut")
LViewSelRooms.I tems.Add(Item1)
I hope this is the sollution.
(Cannot be that big beside it if it is not).
Cor
Hi Cor,
I made the ammendment and im still getting the same
error!!
The problem seems to occur when i remove the quote marks
("") from around the item that is being added.
i.e if i add the following code...
Item1.SubItems. Add("ChosenRoom ")
it works fine but it only adds the value ChosenRoom into
my listview.
I want to add the value that is contained in this
varibale to be added in the listview so i tried...
Item1.SubItems. Add(ChosenRoom)
this however produces the error...
Overload resolution failed because no accessible 'Add'
can be called with these arguments:
'Public Overloads Function Add(text As String) As
System.Windows. Forms.ListViewI tem.ListViewSub Item': Value
of type 'System.Data.Sq lTypes.SqlStrin g' cannot be
converted to 'String'.
'Public Overloads Function Add(item As
System.Windows. Forms.ListViewI tem.ListViewSub Item) As
System.Windows. Forms.ListViewI tem.ListViewSub Item': Value
of type 'System.Data.Sq lTypes.SqlStrin g' cannot be
converted
to 'System.Windows .Forms.ListView Item.ListViewSu bItem'.
how do i actually add the value contained in the variable
into the listview?
thx -----Original Message-----
Hi Eva,
It is always a gamble but I think this can it be
Dim Item1 As New ListViewItem(Ch osenDate, 0)
Item1.SubItems. Add(ChosenRoom)
Item1.SubItems. Add("ChosenLayo ut")
LViewSelRooms.I tems.AddRange(N ew ListViewItem()
{Item1})
Dim Item1 As New ListViewItem(Ch osenDate, 0)
Item1.SubItems .Add(ChosenRoom )
Item1.SubItems .Add("ChosenLay out")
LViewSelRooms. Items.Add(Item1 )
I hope this is the sollution.
(Cannot be that big beside it if it is not).
Cor
.
Hi,
What i just found out is that this may be a datatype
problem. It doesnt seem to like the sqlstring datatype
that i am using. I tried changing this to just STRING i.e.
.....
Dim ChosenLayout As String
ChosenLayout = CBoxLayout.Sele ctedItem
but i get a message stating...
An unhandled exception of
type 'System.Invalid CastException' occurred in
microsoft.visua lbasic.dll
Additional information: Cast from type 'SqlString' to
type 'String' is not valid.
what can i do to correct this? -----Original Message-----
Hi Cor,
I made the ammendment and im still getting the same
error!!
The problem seems to occur when i remove the quote marks
("") from around the item that is being added.
i.e if i add the following code...
Item1.SubItems .Add("ChosenRoo m")
it works fine but it only adds the value ChosenRoom into
my listview.
I want to add the value that is contained in this
varibale to be added in the listview so i tried...
Item1.SubItems .Add(ChosenRoom )
this however produces the error...
Overload resolution failed because no accessible 'Add'
can be called with these arguments:
'Public Overloads Function Add(text As String) As
System.Windows .Forms.ListView Item.ListViewSu bItem':
Valueof type 'System.Data.Sq lTypes.SqlStrin g' cannot be
converted to 'String'.
'Public Overloads Function Add(item As
System.Windows .Forms.ListView Item.ListViewSu bItem) As
System.Windows .Forms.ListView Item.ListViewSu bItem':
Valueof type 'System.Data.Sq lTypes.SqlStrin g' cannot be
converted
to 'System.Windows .Forms.ListView Item.ListViewSu bItem'.
how do i actually add the value contained in the
variableinto the listview?
thx
-----Original Message-----
Hi Eva,
It is always a gamble but I think this can it be
Dim Item1 As New ListViewItem(Ch osenDate, 0)
Item1.SubItems. Add(ChosenRoom)
Item1.SubItems. Add("ChosenLayo ut")
LViewSelRooms.I tems.AddRange(N ew ListViewItem()
{Item1})
Dim Item1 As New ListViewItem(Ch osenDate, 0)
Item1.SubItem s.Add(ChosenRoo m)
Item1.SubItem s.Add("ChosenLa yout")
LViewSelRooms .Items.Add(Item 1)
I hope this is the sollution.
(Cannot be that big beside it if it is not).
Cor
.
.
Hi Eva,
The first thing you should to put the Option Strict On in top of your
program.
(It does not help but shows you this kind of errors in develope time).
Often something simple as
a = b.tostring does than help.
But try first this.
(I do not direct understand on that place that cast error from string to
string but try this first please)
Cor
Typoes correction The first thing you should to put the Option Strict On in top of your
program.
(It does not help but shows you this kind of errors in develope time).
The first thing you should do, is put the Option Strict On in top of your
program.
It does not help, but it shows you this kind of errors in development time).
You might find it useful to inherit from a listViewItem
and add your object as a custom property.
eg.
Private Class MyListViewItem
Inherits Windows.Forms.L istViewItem
Private m_obj As Object
Friend Sub New(ByVal Text As String, ByVal SomeObject
as Object)
Me.m_obj = SomeObject
MyBase.New(Text )
With MyBase.SubItems
.Add(m_obj.Some Property)
.Add(m_obj.Some OtherProperty)
End With
MyBase.UseItemS tyleForSubItems = False
End Sub
Friend ReadOnly Property SomeObject() As Object
Get
Return Me.m_obj
End Get
End Property
End Class
Dim obj1 as New object
obj1.SomeProper ty = "Ben"
obj1.SomeOtherP roperty = "Reese"
'you can then add you inherited object to the list view
ListView1.Add(N ew MyListViewItem( "HI", obj1))
Dim obj2 as object
obj2 = Ctype(ListView1 .Items(0),MyLis tViewItem).Some Object
msgBox(String.F ormat("Hello {0}
{1}",obj2.SomeP roperty,obj2.So meOtherProperty ))
I have found this approach to be extremely usefull in a
number of situations.
HTH
Ben -----Original Message-----
Hi Cor,
thx for the link, it was very useful. im still however
having problems. im trying to insert a value obtained
from a combobox into the subitem of the listview but i
keep getting the following error....
Overload resolution failed because no accessible 'Add'
can be called with these arguments:
'Public Overloads Function Add(text As String) As
System.Windows .Forms.ListView Item.ListViewSu bItem': Value
of type 'System.Data.Sq lTypes.SqlStrin g' cannot be
converted to 'String'.
'Public Overloads Function Add(item As
System.Windows .Forms.ListView Item.ListViewSu bItem) As
System.Windows .Forms.ListView Item.ListViewSu bItem': Value
of type 'System.Data.Sq lTypes.SqlStrin g' cannot be
converted
to 'System.Windows .Forms.ListView Item.ListViewSu bItem'.
I have no idea what im doin wrong!! the code i have has
been pasted below. Can u spot my Mistake??.....
Private Sub btnSelRoom_Clic k(ByVal sender As
System.Objec t, ByVal e As System.EventArg s) Handles
btnSelRoom.Cli ck
Dim ChosenDate As Date
ChosenDate = dtpRoomDate.Val ue.ToShortDateS tring
Dim ChosenRoom As SqlString
ChosenRoom = CBoxRoomNames.S electedItem
Dim ChosenLayout As SqlString
ChosenLayout = CBoxLayout.Sele ctedItem
Dim ChosenSession As SqlString
ChosenSession = CBoxSession.Sel ectedItem
Dim ChosenGuestNo As String
ChosenGuestNo = txtNoOfGuests.T ext
Dim Item1 As New ListViewItem(Ch osenDate, 0)
Item1.SubItems. Add(ChosenRoom)
Item1.SubItems. Add("ChosenLayo ut")
LViewSelRooms.I tems.AddRange(N ew ListViewItem() {Item1})
Many thx
-----Original Message-----
Hi Eva,
To add items to a listview you have to add "listviewit em"
Have a look at this page,
http://msdn.microsoft.com/library/default.asp?
url=/library/en-
us/cpref/html/frlrfsystemwind owsformslistvie witemclasstopi
c.asp
If you still have problems after that message again OK?
Cor
I wanted to know how i can enter values into a specific
column of a listview. I have tried the following codebut this seems to enter all my values into the firstcolumn!!!
Can anyone please help me out on this??
hers my code so far.....
Private Sub btnSelRoom_Clic k(ByVal sender As
System.Object, ByVal e As System.EventArg s) Handles
btnSelRoom.Clic k
Dim ChosenDate As Date
ChosenDate = dtpRoomDate.Val ue.ToShortDateS tring
Dim ChosenRoom As SqlString
ChosenRoom = CBoxRoomNames.S electedItem
Dim ChosenLayout As SqlString
ChosenLayout = CBoxLayout.Sele ctedItem
Dim ChosenSession As SqlString
ChosenSession = CBoxSession.Sel ectedItem
Dim ChosenGuestNo As String
ChosenGuestNo = txtNoOfGuests.T ext
Dim ChosenMeal As String
Dim FullDescription As String
FullDescription = String.Format(" {0}, {1}, {2}, {3},{4}", ChosenDate, ChosenRoom, ChosenLayout, ChosenSession,
ChosenGuestNo)
LViewSelRooms.I tems.Add(FullDe scription)
End Sub
Many thx.
And Merry xmas to all :o)
.
.
you do have a data type problem
Lisview items and sub items take strings as parameters not
sqlString.
Consider using the ToString method on the SqlString
Dim s as New System.Data.SQL Types.SQLString ("SELECT * FROM
Products")
Listview.Items. Add("Hi")
ListView.Items( 0).SubItems.Add (s.ToString)
Alternatively see my earlier post which has accidently
gone in higher up the tree on inheriting from the
listviewitem.
Ben -----Original Message-----
Typoes correction The first thing you should to put the Option Strict On
in top of your program.
(It does not help but shows you this kind of errors in
develope time).The first thing you should do, is put the Option Strict
On in top of yourprogram.
It does not help, but it shows you this kind of errors in
development time).
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I wanted to know how i can enter values into a specific
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Can anyone please help me out on this??
hers my code so far.....
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