postback in ASP.NET

Hello,

I want to create an image map using Zedgraph (www.ZedGraph.org). I can
create an imagemap so that each point in the graph has a link and user can
press that link to do some action. To bring back the user to the same page,
I used the URL of the point to point to the same page. The system is working
well if is it by its own but when there are some other controls on the page,
it fail to work since controls losing their states.

After some research I come to the conclusion that to solve this problem I
need to generate a dummy postback when the user clicked on a point on the
graph and I read about __dopostback().

My questions:

1- Is there any way that I can use a link and the controls don't lose their
states?

2- Is there any way that I can generate a dummy postback using a URL?

3- Any other suggestion?

Regards

Nov 22 '07 #1

Subscribe Reply

1626

Dave Bush

Use an "ImageButto n" and detect the x/y location on the server side.
The click event will have the x and y in the ImageClickEvent Args
parameter.

-----Original Message-----
From: ma [mailto:ma@nowhe re.com]
Posted At: Thursday, November 22, 2007 9:59 AM
Posted To: microsoft.publi c.dotnet.framew ork.aspnet
Conversation: postback in ASP.NET
Subject: postback in ASP.NET

Hello,

I want to create an image map using Zedgraph (www.ZedGraph.org). I can
create an imagemap so that each point in the graph has a link and user
can
press that link to do some action. To bring back the user to the same
page,
I used the URL of the point to point to the same page. The system is
working
well if is it by its own but when there are some other controls on the
page,
it fail to work since controls losing their states.

After some research I come to the conclusion that to solve this problem
I
need to generate a dummy postback when the user clicked on a point on
the
graph and I read about __dopostback().

My questions:

1- Is there any way that I can use a link and the controls don't lose
their
states?

2- Is there any way that I can generate a dummy postback using a URL?

3- Any other suggestion?

Regards

Nov 22 '07 #2

mans

Thanks,
seems a very good way to solve the problem. How should I use ImageButton to
encapsulate a ZedGraph? I know that it generate an image but how can I put
the zedgraph generated image inside a imagebutton?

Regards
"Dave Bush" <da*******@dmbc llc.comwrote in message
news:8C97A62914 D740A8A7C664836 D4E3E20@OfficeV ista...

Use an "ImageButto n" and detect the x/y location on the server side.
The click event will have the x and y in the ImageClickEvent Args
parameter.

-----Original Message-----
From: ma [mailto:ma@nowhe re.com]
Posted At: Thursday, November 22, 2007 9:59 AM
Posted To: microsoft.publi c.dotnet.framew ork.aspnet
Conversation: postback in ASP.NET
Subject: postback in ASP.NET

Hello,

I want to create an image map using Zedgraph (www.ZedGraph.org). I can
create an imagemap so that each point in the graph has a link and user
can
press that link to do some action. To bring back the user to the same
page,
I used the URL of the point to point to the same page. The system is
working
well if is it by its own but when there are some other controls on the
page,
it fail to work since controls losing their states.

After some research I come to the conclusion that to solve this problem
I
need to generate a dummy postback when the user clicked on a point on
the
graph and I read about __dopostback().

My questions:

1- Is there any way that I can use a link and the controls don't lose
their
states?

2- Is there any way that I can generate a dummy postback using a URL?

3- Any other suggestion?

Regards

Nov 22 '07 #3

Dave Bush

Sorry, I'm not familiar with that product.

-----Original Message-----
From: mans [mailto:(myname_ here)_1*****@ya hoo.com]
Posted At: Thursday, November 22, 2007 10:55 AM
Posted To: microsoft.publi c.dotnet.framew ork.aspnet
Conversation: postback in ASP.NET
Subject: Re: postback in ASP.NET

Thanks,
seems a very good way to solve the problem. How should I use ImageButton
to
encapsulate a ZedGraph? I know that it generate an image but how can I
put
the zedgraph generated image inside a imagebutton?

Regards
"Dave Bush" <da*******@dmbc llc.comwrote in message
news:8C97A62914 D740A8A7C664836 D4E3E20@OfficeV ista...

Use an "ImageButto n" and detect the x/y location on the server side.
The click event will have the x and y in the ImageClickEvent Args
parameter.

-----Original Message-----
From: ma [mailto:ma@nowhe re.com]
Posted At: Thursday, November 22, 2007 9:59 AM
Posted To: microsoft.publi c.dotnet.framew ork.aspnet
Conversation: postback in ASP.NET
Subject: postback in ASP.NET

Hello,

I want to create an image map using Zedgraph (www.ZedGraph.org). I can
create an imagemap so that each point in the graph has a link and user
can
press that link to do some action. To bring back the user to the same
page,
I used the URL of the point to point to the same page. The system is
working
well if is it by its own but when there are some other controls on the
page,
it fail to work since controls losing their states.

After some research I come to the conclusion that to solve this

problem

I
need to generate a dummy postback when the user clicked on a point on
the
graph and I read about __dopostback().

My questions:

1- Is there any way that I can use a link and the controls don't lose
their
states?

2- Is there any way that I can generate a dummy postback using a URL?

3- Any other suggestion?

Regards

Nov 22 '07 #4

mans

Thanks you your nice lead. I will try to find how I can do this bymyself.

Regards
"Dave Bush" <da*******@dmbc llc.comwrote in message
news:44DDC2D8FB EE437C99D8D2162 0E6CBD9@OfficeV ista...

Sorry, I'm not familiar with that product.

-----Original Message-----
From: mans [mailto:(myname_ here)_1*****@ya hoo.com]
Posted At: Thursday, November 22, 2007 10:55 AM
Posted To: microsoft.publi c.dotnet.framew ork.aspnet
Conversation: postback in ASP.NET
Subject: Re: postback in ASP.NET

Thanks,
seems a very good way to solve the problem. How should I use ImageButton
to
encapsulate a ZedGraph? I know that it generate an image but how can I
put
the zedgraph generated image inside a imagebutton?

Regards
"Dave Bush" <da*******@dmbc llc.comwrote in message
news:8C97A62914 D740A8A7C664836 D4E3E20@OfficeV ista...
>Use an "ImageButto n" and detect the x/y location on the server side.
The click event will have the x and y in the ImageClickEvent Args
parameter.

-----Original Message-----
From: ma [mailto:ma@nowhe re.com]
Posted At: Thursday, November 22, 2007 9:59 AM
Posted To: microsoft.publi c.dotnet.framew ork.aspnet
Conversation : postback in ASP.NET
Subject: postback in ASP.NET

Hello,

I want to create an image map using Zedgraph (www.ZedGraph.org). I can
create an imagemap so that each point in the graph has a link and user
can
press that link to do some action. To bring back the user to the same
page,
I used the URL of the point to point to the same page. The system is
working
well if is it by its own but when there are some other controls on the
page,
it fail to work since controls losing their states.

After some research I come to the conclusion that to solve this
problem
>I
need to generate a dummy postback when the user clicked on a point on
the
graph and I read about __dopostback().

My questions:

1- Is there any way that I can use a link and the controls don't lose
their
states?

2- Is there any way that I can generate a dummy postback using a URL?

3- Any other suggestion?

Regards

Nov 22 '07 #5

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