John Account
asked on
Error: Panel is not declared
I'm trying to publish/compile my asp.net 2.0 VB website, and got the following error:
C:\MyWebSite\Videos.aspx.v
How do I fix this error?
panGoogleVid is aPanel that, based on events occuring on the page, is either visible or not visible; like this, for instance...
Protected Sub Menu3_MenuItemClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.
Button2.Visible = True
mySrc = Menu3.SelectedValue
If mySrc = "GoogleVideo" Then
mySrc = ""
Select Case (Menu3.SelectedItem.ToolTi
Case ("Dealing Drastically With Our Sinful Nature: 35 min 21 sec (Recorded: 29 July 07)")
myGoogle = "http://video.google.com/googleplayer.swf?docId=-3758984925195200639&hl=en-CA"
panGoogleVid.Visible = True
End Select
Me.VideoStoppedMsg.Visible
Else
myGoogle = ""
VideoStoppedMsg.Visible = False
VidSermonsTitle.Visible = False
panGoogleVid.Visible = False
End If
End Sub
C:\MyWebSite\Videos.aspx.v
How do I fix this error?
panGoogleVid is aPanel that, based on events occuring on the page, is either visible or not visible; like this, for instance...
Protected Sub Menu3_MenuItemClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.
Button2.Visible = True
mySrc = Menu3.SelectedValue
If mySrc = "GoogleVideo" Then
mySrc = ""
Select Case (Menu3.SelectedItem.ToolTi
Case ("Dealing Drastically With Our Sinful Nature: 35 min 21 sec (Recorded: 29 July 07)")
myGoogle = "http://video.google.com/googleplayer.swf?docId=-3758984925195200639&hl=en-CA"
panGoogleVid.Visible = True
End Select
Me.VideoStoppedMsg.Visible
Else
myGoogle = ""
VideoStoppedMsg.Visible = False
VidSermonsTitle.Visible = False
panGoogleVid.Visible = False
End If
End Sub
ASKER
samtran0331, Okay, hmmmmnnn...I right-clicked it, but the cursor went no where--just to a <br /> point in the page. So then I selected to 'Find All References' instead, but then when I click on "Protected withevents panGoogleVid as system.web.ui.controls.pan
Are you instantiating the panGoogleVid object dynamically or at design time in the page template? If the former, make sure that it has been initialized prior to the Click event. If the latter, then make sure that the IDE inserted the appropriate reference in your code when you added the control to the page.
-dZ.
-dZ.
ASKER
You know, DropZone, I really don't know. I guess that's the problem there. These blocks of code below are the only references to the panGoogleVid object. What am I missing?
---ASPX PAGE------
<asp:Panel ID="panGoogleVid" runat="server" Height="267px" Style="z-index: 103; left: 20px;
position: absolute; top: 26px" Width="330px" Visible="False">
<div id="VideoOnGoogle" style="z-index: 103; left: 0px; width: 291px; position: absolute;
top: 0px; height: 240px">
<embed style="width:320px; height:266px;" id="VideoPlayback" type="application/x-shockw
</div>
</asp:Panel>
----CODE BEHIND-------
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
mySrc = ""
Button2.Visible = False
VideoStoppedMsg.Visible = True
VidSermonsTitle.Visible = True
panGoogleVid.Visible = False
End Sub
Protected Sub Menu3_MenuItemClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.
Button2.Visible = True
mySrc = Menu3.SelectedValue
If mySrc = "GoogleVideo" Then
mySrc = ""
Select Case (Menu3.SelectedItem.ToolTi
Case ("Dealing Drastically With Our Sinful Nature: 35 min 21 sec (Recorded: 29 July 07)")
myGoogle = "http://video.google.com/googleplayer.swf?docId=-3758984925195200639&hl=en-CA"
panGoogleVid.Visible = True
End Select
Me.VideoStoppedMsg.Visible
Else
myGoogle = ""
VideoStoppedMsg.Visible = False
VidSermonsTitle.Visible = False
panGoogleVid.Visible = False
End If
End Sub
End Class
---ASPX PAGE------
<asp:Panel ID="panGoogleVid" runat="server" Height="267px" Style="z-index: 103; left: 20px;
position: absolute; top: 26px" Width="330px" Visible="False">
<div id="VideoOnGoogle" style="z-index: 103; left: 0px; width: 291px; position: absolute;
top: 0px; height: 240px">
<embed style="width:320px; height:266px;" id="VideoPlayback" type="application/x-shockw
</div>
</asp:Panel>
----CODE BEHIND-------
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
mySrc = ""
Button2.Visible = False
VideoStoppedMsg.Visible = True
VidSermonsTitle.Visible = True
panGoogleVid.Visible = False
End Sub
Protected Sub Menu3_MenuItemClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.
Button2.Visible = True
mySrc = Menu3.SelectedValue
If mySrc = "GoogleVideo" Then
mySrc = ""
Select Case (Menu3.SelectedItem.ToolTi
Case ("Dealing Drastically With Our Sinful Nature: 35 min 21 sec (Recorded: 29 July 07)")
myGoogle = "http://video.google.com/googleplayer.swf?docId=-3758984925195200639&hl=en-CA"
panGoogleVid.Visible = True
End Select
Me.VideoStoppedMsg.Visible
Else
myGoogle = ""
VideoStoppedMsg.Visible = False
VidSermonsTitle.Visible = False
panGoogleVid.Visible = False
End If
End Sub
End Class
ASKER
By the way, Drop Zone, you skydive? This is me enjoying a fun skydive: http://video.google.ca/videoplay?docid=5315858865168306265&hl=en-CA
ASKER CERTIFIED SOLUTION
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I forgot to mention that, yes, I used to skydive -- a long, long time ago. :)
-dZ.
-dZ.
SOLUTION
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To access this solution, you must be a member of Experts Exchange.
Panels within panels or contentplaceholders will work fine without using the "findcontrol" technique...it's usually when a control is nested inside a data control like a gridview or formview that you need to use findcontrol to get at the nested control...
this page works fine with panel2 and panel3 nested inside panel1
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.Panel2.Visible = False
End Sub
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.Panel3.Visible = False
End Sub
Protected Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.Panel2.Visible = True
Me.Panel3.Visible = True
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Panel ID="Panel1" runat="server">
Panel 1
<asp:Panel ID="Panel2" runat="server" Height="50px" Width="125px">
Panel 2</asp:Panel>
<asp:Panel ID="Panel3" runat="server" Height="50px" Width="125px">
Panel 3</asp:Panel>
</asp:Panel>
<br />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Hide panel 2" />
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Hide panel 3" />
<asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="Show 2 and 3" />
</div>
</form>
</body>
</html>
this page works fine with panel2 and panel3 nested inside panel1
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.Panel2.Visible = False
End Sub
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.Panel3.Visible = False
End Sub
Protected Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.Panel2.Visible = True
Me.Panel3.Visible = True
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Panel ID="Panel1" runat="server">
Panel 1
<asp:Panel ID="Panel2" runat="server" Height="50px" Width="125px">
Panel 2</asp:Panel>
<asp:Panel ID="Panel3" runat="server" Height="50px" Width="125px">
Panel 3</asp:Panel>
</asp:Panel>
<br />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Hide panel 2" />
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Hide panel 3" />
<asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="Show 2 and 3" />
</div>
</form>
</body>
</html>
Yes, but we still don't know if the control is contained within a templated control; he only posted an excerpt of the ASPX page where the panGoogleVid is declared, not the entire page.
JohnLucio, is the panGoogleVid panel contain within another control, or more specific, within a templated control?
-dZ.
JohnLucio, is the panGoogleVid panel contain within another control, or more specific, within a templated control?
-dZ.
ASKER
Sorry for taking so long to get back, guys. Been very busy with this. Anyways...no, it is not nested within another control. And I can't find this block anywhere: Protected WithEvents panGoogleVid As Global.System.Web.UI.Contr
So I deleted the panel and added a new panel as you suggested, samtran0331; but still getitng same error; but I guess I need to clear my cache.
Oh...btw, this file pagename.aspx.designer.vb does not exist, where pagename represents the actual name being used.
Should I show all the code in the aspx and code behind pages in here?--it's a lot.
So I deleted the panel and added a new panel as you suggested, samtran0331; but still getitng same error; but I guess I need to clear my cache.
Oh...btw, this file pagename.aspx.designer.vb does not exist, where pagename represents the actual name being used.
Should I show all the code in the aspx and code behind pages in here?--it's a lot.
Are you working on this page in the VS designer or from a different text editor?
-dZ.
-dZ.
ASKER
Working in Visual Studio 2005
dZ:"Yes, but we still don't know if the control is contained within a templated control; he only posted an excerpt of the ASPX page where the panGoogleVid is declared, not the entire page."
True, but I wanted to clarify that your example at post ID:19657425 with the nested panels and using findcontrol was (imho) not the right way to go.
Plus, if it was templated control issue, you'd more likely get the "Object reference not set to an instance of an object" error.
JohnLucio:"this file pagename.aspx.designer.vb does not exist"
That tells me you're using a VS2005 "Web Site Project" and not a migrated VS2003 project or a "Web Application Project"...
With a Web Site Project, the designer.vb file is created/compiled dynamically and the developer never sees or modifies the file....but something did get corrupted somehow...
I would try giving the machine a reboot and clearing the asp.net cache before doing anything else (like opening VS or testing the page)
If it still errors, another thing to try is to actually paste into your codebehind page:
Protected WithEvents panGoogleVid As System.Web.UI.Controls.Pan
Put it right under the "Inherits..." line of the codebehind file.
True, but I wanted to clarify that your example at post ID:19657425 with the nested panels and using findcontrol was (imho) not the right way to go.
Plus, if it was templated control issue, you'd more likely get the "Object reference not set to an instance of an object" error.
JohnLucio:"this file pagename.aspx.designer.vb does not exist"
That tells me you're using a VS2005 "Web Site Project" and not a migrated VS2003 project or a "Web Application Project"...
With a Web Site Project, the designer.vb file is created/compiled dynamically and the developer never sees or modifies the file....but something did get corrupted somehow...
I would try giving the machine a reboot and clearing the asp.net cache before doing anything else (like opening VS or testing the page)
If it still errors, another thing to try is to actually paste into your codebehind page:
Protected WithEvents panGoogleVid As System.Web.UI.Controls.Pan
Put it right under the "Inherits..." line of the codebehind file.
ASKER
Yeah, that's what I was thinking--I don't recall every seen pagename.aspx.designer.vb in a Web Site Project in VS2005. Okay, samtran0331. Thanks. I"ll do that now.
samtran0331: Sorry, you are right and I stand corrected. Although I am experienced with the .NET framework, I have never had the opportunity to use Visual Studio.NET, and so I'm not familiar with its idiosyncracies. I use Delphi.NET which has its own set of issues.
-dZ.
-dZ.
ASKER
Okay, talk about issues & idiosyncracies--now this is really weird, guys!----
I got frustrated, created another folder on my computer, then created another project and saved it in that folder. Then copied Videos.aspx & Videos.aspx.vb into that new folder, and refreshed my new project. Now...hmmmmnnnn...this new project compiles without any problem what so ever! Except this project has only those two files--which leads me to believe that the problem isn't in either of these files. Hmmmmnnnnn.
I got frustrated, created another folder on my computer, then created another project and saved it in that folder. Then copied Videos.aspx & Videos.aspx.vb into that new folder, and refreshed my new project. Now...hmmmmnnnn...this new project compiles without any problem what so ever! Except this project has only those two files--which leads me to believe that the problem isn't in either of these files. Hmmmmnnnnn.
did you clear the "server cache" folder?
ASKER
Gentlemen, thank you very much. I've applied everything you taught me, and finally got it working. After all was said and done, in the end, what I had to do was break that particular site down into 3 projects:
1. All the Root Pages
2. Ministry Pages
3. Video Sermons Page
I don't know why I had to put it into 3 projects, I just know that's the only way I could get everything to publish, and .dll files for the site created.
Again, thank you very much for your help. If you wanna see the site, it's right here: http://www.fountaingate.org/
1. All the Root Pages
2. Ministry Pages
3. Video Sermons Page
I don't know why I had to put it into 3 projects, I just know that's the only way I could get everything to publish, and .dll files for the site created.
Again, thank you very much for your help. If you wanna see the site, it's right here: http://www.fountaingate.org/
If yes, right-click on the word "panGoogleVid" in any part of that code you posted and then choose "Go to Definition"....it should take you to the designer file with a line like:
Protected withevents panGoogleVid as system.web.ui.controls.pan