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After zooming how I can zoom out given chart ?

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Chart (Obsolete)
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ajmal
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ajmal asked on 03 Dec 2008, 12:02 PM
Hello All,

Is anybody knows after zooming radchart, is there any method or alternatives are available ?
or
How I can zoom out given rad chart back into original screen ?
(I used latest rad control version 2008)


Thanks in advance.

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Giuseppe
Telerik team
answered on 03 Dec 2008, 02:23 PM
Hi ajmal,

You can use the zoomOut / resetZoom client-side methods. You can find more information on the client-side API here.

Hope this helps.


All the best,
Manuel
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Keith
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answered on 10 Feb 2009, 09:35 PM
Hello there... after looking at the API, I added this code to my ZoomOut JavaScript function...

function ZoomOut()
{
var chart = $find("<%=RadChart1.ClientID%>");
chart.zoomOut();

}

But I get the following error message when the page loads...

The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

Thanks for any guidance with it.

---Keith
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Giuseppe
Telerik team
answered on 13 Feb 2009, 04:28 PM
Hello Keith,

We would suggest you to review the general troubleshooting section here.

If you receive exceptions such as "System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks" you need to move the code block (i.e. <% ... %>) outside of the head tag:

Incorrect:
 <head runat="server"
  <script type="text/javascript"
  var grid = $find('<%= RadGrid1.ClientID %>'); 
  ... 
  </script> 
</head> 
<body> 
... 
</body>  

Correct:
 <head runat="server"
<telerik:RadCodeBlock id="RadCodeBlock1" runat="server"
   <script type="text/javascript"
       var grid = $find('<%= RadGrid1.ClientID %>'); 
       ... 
   </script> 
</telerik:RadCodeBlock> 
</head> 
<body> 
... 
</body> 
or 
<head runat="server"
</head> 
<body> 
   <telerik:RadCodeBlock id="RadCodeBlock1" runat="server"
   <script type="text/javascript"
       var grid = $find('<%= RadGrid1.ClientID %>'); 
       ... 
   </script> 
   </telerik:RadCodeBlock> 
</body>    


Hope this helps.


All the best,
Manuel
the Telerik team

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Satish
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answered on 22 May 2012, 02:24 PM
Hello,

1> Is this possible to do the chart Zoom out by User Mouse scrolling? I tried but it is messing up the results.
If possible please let me know, how it would be.

2> If the Mouse scrolling zoom option won't support for Radchart, I have to do it programatically, We have to provide button -Click event to Zoom out Is that correct?


Thank You,
Satish.     
0
Giuseppe
Telerik team
answered on 25 May 2012, 05:16 PM
Hello Satish,

Unfortunately zoom out action is not supported with mouse scrolling. You can use the client-side API to achieve the desired effect.


Greetings,
Giuseppe
the Telerik team
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Chart (Obsolete)
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ajmal
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Giuseppe
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Keith
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Satish
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