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aspx thread: DropDownList is Bugging
Message #1 by "J Donahue" <jdonahue@f...> on Thu, 13 Jun 2002 04:36:04
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I'm going nuts. I am moving some code from an ascx page into the aspx
page (eliminating the ascx page altogether). My dropdown list correctly
picks up my selection the first time, but it will never change again if I
want to select something else. (meaning if I pick Branch12 the first time
and transfer back to itself, it will always show Branch12 even though I
subsequently picked Branch 15).
In the aspx page, I have the following:
<asp:dropdownlist id="BranchList" CssClass="10bold" Runat="server"
AutoPostBack="True"
OnSelectedIndexChanged="EvaluateBranch"></asp:DropDownList>
Private Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Handles MyBase.Load
If Not Page.IsPostBack Then
Dim objDataView As DataView
strSQL = "SELECT BranchID, BranchNameVC FROM tBranches ORDER by
BranchNameVC "
objDataView = Glbl.GetDataView(strSQL, "tBranches")
If IsNothing(objDataView) Then
<MyError>
Exit Sub
End If
BranchList.DataSource = objDataView
BranchList.DataValueField = "BranchID"
BranchList.DataTextField = "BranchNameVC"
BranchList.DataBind()
BranchList.Items.Insert(0, "Select Branch")
EndIf
If Session("ReqBranchChose") <> Nothing Then
BranchList.SelectedIndex = BranchList.Items.IndexOf
(BranchList.Items.FindByText(Session("ReqBranchChose")))
End If
End Sub
Sub EvaluateBranch(ByVal sender As Object, ByVal e As EventArgs)
Session("ReqBranchChose") = BranchList.SelectedItem.Text
Server.Transfer("RequestInp.aspx", False) 'simply calling itself back
End Sub
It works properly if I keep it in the ascx page (I can change my
selection as many times as I want), but since I moved it into the aspx
page, it only lets me make one selection and I'm stuck with it. Can
anyone tell me what I'm doing wrong?
Thanks...Jim
Message #2 by Philip Tham <philipt1@s...> on Wed, 12 Jun 2002 22:38:47 -0500
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I run into the same problem before, If I still remember correctly I think
this is how I solved it. 1) try to convert 12,13....15 to integer else 2)
try to insert a character like - before the number
Good luck
Philip
----- Original Message -----
From: "J Donahue" <jdonahue@f...>
To: "ASP+" <aspx@p...>
Sent: Wednesday, June 12, 2002 11:36 PM
Subject: [aspx] DropDownList is Bugging
> I'm going nuts. I am moving some code from an ascx page into the aspx
> page (eliminating the ascx page altogether). My dropdown list correctly
> picks up my selection the first time, but it will never change again if I
> want to select something else. (meaning if I pick Branch12 the first time
> and transfer back to itself, it will always show Branch12 even though I
> subsequently picked Branch 15).
> In the aspx page, I have the following:
>
> <asp:dropdownlist id="BranchList" CssClass="10bold" Runat="server"
> AutoPostBack="True"
> OnSelectedIndexChanged="EvaluateBranch"></asp:DropDownList>
>
> Private Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
> Handles MyBase.Load
>
> If Not Page.IsPostBack Then
> Dim objDataView As DataView
> strSQL = "SELECT BranchID, BranchNameVC FROM tBranches ORDER by
> BranchNameVC "
> objDataView = Glbl.GetDataView(strSQL, "tBranches")
> If IsNothing(objDataView) Then
> <MyError>
> Exit Sub
> End If
> BranchList.DataSource = objDataView
> BranchList.DataValueField = "BranchID"
> BranchList.DataTextField = "BranchNameVC"
> BranchList.DataBind()
> BranchList.Items.Insert(0, "Select Branch")
> EndIf
>
> If Session("ReqBranchChose") <> Nothing Then
> BranchList.SelectedIndex = BranchList.Items.IndexOf
> (BranchList.Items.FindByText(Session("ReqBranchChose")))
> End If
>
> End Sub
>
> Sub EvaluateBranch(ByVal sender As Object, ByVal e As EventArgs)
> Session("ReqBranchChose") = BranchList.SelectedItem.Text
> Server.Transfer("RequestInp.aspx", False) 'simply calling itself back
> End Sub
>
> It works properly if I keep it in the ascx page (I can change my
> selection as many times as I want), but since I moved it into the aspx
> page, it only lets me make one selection and I'm stuck with it. Can
> anyone tell me what I'm doing wrong?
> Thanks...Jim
Message #3 by "Li, Fang" <fang@c...> on Thu, 13 Jun 2002 10:37:04 -0400
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If you call this page again like
>Server.Transfer("RequestInp.aspx", False) 'simply calling itself back
the Page_Load() function will be called and code
>If Not Page.IsPostBack Then
Will be true, then you bind all data again. I think that's the reason.
Try to debug it and see what happed.
-----Original Message-----
From: J Donahue [mailto:jdonahue@f...]
Sent: Thursday, June 13, 2002 12:36 AM
To: ASP+
Subject: [aspx] DropDownList is Bugging
I'm going nuts. I am moving some code from an ascx page into the aspx
page (eliminating the ascx page altogether). My dropdown list correctly
picks up my selection the first time, but it will never change again if I
want to select something else. (meaning if I pick Branch12 the first time
and transfer back to itself, it will always show Branch12 even though I
subsequently picked Branch 15).
In the aspx page, I have the following:
<asp:dropdownlist id="BranchList" CssClass="10bold" Runat="server"
AutoPostBack="True"
OnSelectedIndexChanged="EvaluateBranch"></asp:DropDownList>
Private Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Handles MyBase.Load
If Not Page.IsPostBack Then
Dim objDataView As DataView
strSQL = "SELECT BranchID, BranchNameVC FROM tBranches ORDER by
BranchNameVC "
objDataView = Glbl.GetDataView(strSQL, "tBranches")
If IsNothing(objDataView) Then
<MyError>
Exit Sub
End If
BranchList.DataSource = objDataView
BranchList.DataValueField = "BranchID"
BranchList.DataTextField = "BranchNameVC"
BranchList.DataBind()
BranchList.Items.Insert(0, "Select Branch")
EndIf
If Session("ReqBranchChose") <> Nothing Then
BranchList.SelectedIndex = BranchList.Items.IndexOf
(BranchList.Items.FindByText(Session("ReqBranchChose")))
End If
End Sub
Sub EvaluateBranch(ByVal sender As Object, ByVal e As EventArgs)
Session("ReqBranchChose") = BranchList.SelectedItem.Text
Server.Transfer("RequestInp.aspx", False) 'simply calling itself back
End Sub
It works properly if I keep it in the ascx page (I can change my
selection as many times as I want), but since I moved it into the aspx
page, it only lets me make one selection and I'm stuck with it. Can
anyone tell me what I'm doing wrong?
Thanks...Jim
Message #4 by "J Donahue" <jdonahue@f...> on Thu, 13 Jun 2002 16:00:13
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Thx Li but the reason it's bugging is not due to the post back (whether
rebinding or not). I checked this by setting a session variable and then
setting the default item based on that session variable AFTER it getst
the dropdown items.
For some reason, my session variable is not changing for the new selection
>
If you call this page again like
>Server.Transfer("RequestInp.aspx", False) 'simply calling itself back
the Page_Load() function will be called and code
>If Not Page.IsPostBack Then
Will be true, then you bind all data again. I think that's the reason.
Try to debug it and see what happed.
-----Original Message-----
From: J Donahue [mailto:jdonahue@f...]
Sent: Thursday, June 13, 2002 12:36 AM
To: ASP+
Subject: [aspx] DropDownList is Bugging
I'm going nuts. I am moving some code from an ascx page into the aspx
page (eliminating the ascx page altogether). My dropdown list correctly
picks up my selection the first time, but it will never change again if I
want to select something else. (meaning if I pick Branch12 the first time
and transfer back to itself, it will always show Branch12 even though I
subsequently picked Branch 15).
In the aspx page, I have the following:
<asp:dropdownlist id="BranchList" CssClass="10bold" Runat="server"
AutoPostBack="True"
OnSelectedIndexChanged="EvaluateBranch"></asp:DropDownList>
Private Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Handles MyBase.Load
If Not Page.IsPostBack Then
Dim objDataView As DataView
strSQL = "SELECT BranchID, BranchNameVC FROM tBranches ORDER by
BranchNameVC "
objDataView = Glbl.GetDataView(strSQL, "tBranches")
If IsNothing(objDataView) Then
<MyError>
Exit Sub
End If
BranchList.DataSource = objDataView
BranchList.DataValueField = "BranchID"
BranchList.DataTextField = "BranchNameVC"
BranchList.DataBind()
BranchList.Items.Insert(0, "Select Branch")
EndIf
If Session("ReqBranchChose") <> Nothing Then
BranchList.SelectedIndex = BranchList.Items.IndexOf
(BranchList.Items.FindByText(Session("ReqBranchChose")))
End If
End Sub
Sub EvaluateBranch(ByVal sender As Object, ByVal e As EventArgs)
Session("ReqBranchChose") = BranchList.SelectedItem.Text
Server.Transfer("RequestInp.aspx", False) 'simply calling itself back
End Sub
It works properly if I keep it in the ascx page (I can change my
selection as many times as I want), but since I moved it into the aspx
page, it only lets me make one selection and I'm stuck with it. Can
anyone tell me what I'm doing wrong?
Thanks...Jim
Message #5 by "Li, Fang" <fang@c...> on Thu, 13 Jun 2002 11:57:48 -0400
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Hi Jim,
How about try to past the selected index as parameter to the new this page,
it works for me.
Fang
-----Original Message-----
From: J Donahue [mailto:jdonahue@f...]
Sent: Thursday, June 13, 2002 12:00 PM
To: ASP+
Subject: [aspx] RE: DropDownList is Bugging
Thx Li but the reason it's bugging is not due to the post back (whether
rebinding or not). I checked this by setting a session variable and then
setting the default item based on that session variable AFTER it getst
the dropdown items.
For some reason, my session variable is not changing for the new selection
>
If you call this page again like
>Server.Transfer("RequestInp.aspx", False) 'simply calling itself back
the Page_Load() function will be called and code
>If Not Page.IsPostBack Then
Will be true, then you bind all data again. I think that's the reason. Try
to debug it and see what happed.
-----Original Message-----
From: J Donahue [mailto:jdonahue@f...]
Sent: Thursday, June 13, 2002 12:36 AM
To: ASP+
Subject: [aspx] DropDownList is Bugging
I'm going nuts. I am moving some code from an ascx page into the aspx
page (eliminating the ascx page altogether). My dropdown list correctly
picks up my selection the first time, but it will never change again if I
want to select something else. (meaning if I pick Branch12 the first time
and transfer back to itself, it will always show Branch12 even though I
subsequently picked Branch 15).
In the aspx page, I have the following:
<asp:dropdownlist id="BranchList" CssClass="10bold" Runat="server"
AutoPostBack="True"
OnSelectedIndexChanged="EvaluateBranch"></asp:DropDownList>
Private Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Handles MyBase.Load
If Not Page.IsPostBack Then
Dim objDataView As DataView
strSQL = "SELECT BranchID, BranchNameVC FROM tBranches ORDER by
BranchNameVC "
objDataView = Glbl.GetDataView(strSQL, "tBranches")
If IsNothing(objDataView) Then
<MyError>
Exit Sub
End If
BranchList.DataSource = objDataView
BranchList.DataValueField = "BranchID"
BranchList.DataTextField = "BranchNameVC"
BranchList.DataBind()
BranchList.Items.Insert(0, "Select Branch")
EndIf
If Session("ReqBranchChose") <> Nothing Then
BranchList.SelectedIndex = BranchList.Items.IndexOf
(BranchList.Items.FindByText(Session("ReqBranchChose")))
End If
End Sub
Sub EvaluateBranch(ByVal sender As Object, ByVal e As EventArgs)
Session("ReqBranchChose") = BranchList.SelectedItem.Text
Server.Transfer("RequestInp.aspx", False) 'simply calling itself back
End Sub
It works properly if I keep it in the ascx page (I can change my
selection as many times as I want), but since I moved it into the aspx
page, it only lets me make one selection and I'm stuck with it. Can
anyone tell me what I'm doing wrong?
Thanks...Jim
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