Fix System.FormatException in WebTree When Chrome Is Zoomed

System.FormatException: Input string was not in a correct format error is thrown on Chrome when browser is zoomed in/out

When chrome is zoomed in or out, we get above error after scrolling down\up in a webtree and try to save the selection.

This seems to have been introuduced with the recent version of Chrome browser (39.0.2171.71) which started setting the scroll position as a floating point number rather than an integer.

Is there a fix available for this issue?

Hello,

 

Google chrome updates quite frequently. It seems this is currently not reproducible with the following testing environment:

Test samples from our Official Website. For example: https://www.infragistics.com/samples/aspnet/data-tree/data-binding

Tested under ASP.NET 14.2.20142.1028

Chrome version 40.0.2214.111

I suggest updating Chrome should remove the unwanted behavior. If the issue persists however, I suggest you to attach a sample where this issue is appearing or if it is not possible to share the exact product version you are using as well as some more details to reproduce this as for example is there something more involved as steps and interactions.

Hi:

Thanks for your reply. Our Chrome is uptodate and this issue has been occuring since November.

I m not able to replicate this in your demo page either because this error is happening when all these steps are taken:

1- Chrome is Zoomed-in

2- you scroll down the tree to select an item

3- you try to get the selected item (and save it). This step is not possible in demo.

Here is the error stack trace:

Error Message: 
Input
 
string
 was not in a correct format.
 
Exception Type: System.Web.HttpUnhandledException
Message: Exception of type 'System.Web.HttpUnhandledException' was thrown.
Stack Trace:    at System.Web.UI.Page.HandleError(Exception e)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at ASP.applicant_attcreditstopup_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\7f1abafc\b8cd4f32\App_Web_hurk3lhh.12.cs:line 0
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
 
Inner Exception Type: System.Exception
Inner Message: 175.2 is not a valid value for Int32.
Inner Stack Trace:    at System.ComponentModel.BaseNumberConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)
   at System.ComponentModel.TypeConverter.ConvertFromString(
String
 text)
   at Infragistics.WebUI.UltraWebNavigator.ClientStateXmlParser.ProcessXmlData(UltraWebTree webTree, XmlNode xmlNode, Object currentObj, Boolean ignoreCase, ArrayList eventList)
   at Infragistics.WebUI.UltraWebNavigator.UltraWebTree.ProcessPostData(XmlNode doc)
   at Infragistics.WebUI.UltraWebNavigator.UltraWebTree.LoadPostData(
String
 postDataKey, NameValueCollection values)
   at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Here is a sample code including the component version:

<%@ Register TagPrefix="ignav" Namespace="Infragistics.WebUI.UltraWebNavigator" Assembly="Infragistics2.WebUI.UltraWebNavigator.v8.3" %>
<ignav:ultrawebtree id="wtrv" Cursor="Default" ExpandImage="ig_treePlus2.gif" Indentation="20" WebTreeTarget="ClassicTree"
    DefaultItemClass="DefaultItemClass" CheckedNodes="(Collection)" CollapseImage="ig_treeMinus2.gif"
    AllowDrag="False" Font-Names="Verdana,Sans-Serif" Font-Size="8pt" BackColor="Transparent" BorderWidth="2px"
    BorderStyle="Dotted" BorderColor="WhiteSmoke" Height="300px" Width="320px" runat="server">
    <RootNodeStyle></RootNodeStyle>
    <NodeStyle Cursor="Default"></NodeStyle>
    <NodePaddings Top="2px"></NodePaddings>
    <NodeEditStyle Font-Size="9pt" Font-Names="Tahoma,Verdana,Sans-Serif"></NodeEditStyle>
    <Padding Top="5px"></Padding>
    <Levels>
        <ignav:Level Index="0" LevelCheckBoxes="False"></ignav:Level>
        <ignav:Level Index="1" LevelCheckBoxes="False"></ignav:Level>
    </Levels>
    <Styles>
        <ignav:Style Cursor="Default" CssClass="DefaultItemClass"></ignav:Style>
        <ignav:Style Cursor="Default" CssClass="tqa"></ignav:Style>
    </Styles>
</ignav:ultrawebtree>

Please let me know if you need more information.

Thanks!

Adding the stack trace again as it wasnt displayed properly in previous post:

Exception Type: System.Web.HttpUnhandledException
Message: Exception of type 'System.Web.HttpUnhandledException' was thrown.
Stack Trace:    at System.Web.UI.Page.HandleError(Exception e)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at ASP.applicant_attcreditstopup_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\7f1abafc\b8cd4f32\App_Web_hurk3lhh.12.cs:line 0
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
 
Inner Exception Type: System.Exception
Inner Message: 175.2 is not a valid value for Int32.
Inner Stack Trace:    at System.ComponentModel.BaseNumberConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)
   at System.ComponentModel.TypeConverter.ConvertFromString(String text)
   at Infragistics.WebUI.UltraWebNavigator.ClientStateXmlParser.ProcessXmlData(UltraWebTree webTree, XmlNode xmlNode, Object currentObj, Boolean ignoreCase, ArrayList eventList)
   at Infragistics.WebUI.UltraWebNavigator.UltraWebTree.ProcessPostData(XmlNode doc)
   at Infragistics.WebUI.UltraWebNavigator.UltraWebTree.LoadPostData(String postDataKey, NameValueCollection values)
   at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Hello Mark,

 

It appears you are using version v8.3 of the ASP.NET product (classic controls) and these are considered deprecated long time ago. What I mean by this is, these controls were developed and supported according to the existing software environment at the time (about 7 years ago during several years later). They are no longer updated in order to the match the new browser versions and it is expected some issues could appear.

A list with the supported environments/browsers per product version could be found at:

https://www.infragistics.com/support/supported-environments

You could find more details regarding the controls at: https://www.infragistics.com/support/product-lifecycle

 

In order to have a better experience, I suggest you to upgrade to one of the latest releases, where it is ensured the controls are constantly updated when there are changes in the browsers as well.

Thanks for your reply.

Is there a link where I can find a latest version of classic controls please? What product would you suggest if we were to drop the classic controls all together?

Thanks.

Hello Mark,

The latest version with the classic controls is v11.1, you can go to the archived downloads pages where we have a link for this version, note that upgrading to v11.1 will not get you support for the classic controls in Chrome as support for Chrome was implemented after they were retired:

https://www.infragistics.com/support/archived-downloads

As for what to replace classic controls with depends on your personal preference. First we have the ASP.NET AJAX/Aikido control:

https://www.infragistics.com/samples/aspnet/

https://www.infragistics.com/help/aspnet/classic-control-migration-control-mapping

If you want to stay with ASP.NET you can see the following blog that goes over what controls were replaced and with what other control:

https://www.infragistics.com/community/blogs/b/taz_abdeali/posts/asp-net-product-changes-in-2011-volume-2

The other option is the jQuery IgniteUI controls:

http://www.igniteui.com/

http://www.igniteui.com/help/api/2014.2/

https://www.igniteui.com/help/14.1/home-page

Which you pick will depend on your preference of platform as well as needs of your application.

Please let me know if you have any further questions concerning this matter.