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POMy Event Log is full of ViewState was Invalid and Unhandled Exception
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  1. POMy Event Log is full of ViewState was Invalid and Unhandled Exception
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    copied!<p>I have HealthMonitoring on for my website. 90% of my pages are accessed in the format </p> <pre><code>http://www.itsmywebsite.com/showproduct.aspx?id=somenumber </code></pre> <p>I was checking the WebEvents_events tables and saw that my table is full of primarily two errors</p> <p><strong>ERROR 1</strong></p> <pre><code>0002609ad8vdf45f8daffc7de8716e32 2013-11-25 17:01:18.153 2013-11-25 11:01:18.153 System.Web.Management.WebViewStateFailureAuditEvent 9877 1455 4009 50204 Viewstate verification failed. Reason: Viewstate was invalid. C:\HostingSpaces\parthak\itsmywebsite.com\wwwroot\ / C15472-132183 http://www.itsmywebsite.com/showproduct.aspx NULL Event code: 4009 Event message: Viewstate verification failed. Reason: Viewstate was invalid. Event time: 11/25/2013 11:01:18 AM Event time (UTC): 11/25/2013 5:01:18 PM Event ID: 0002609ad8vdf45f8daffc7de8716e32 Event sequence: 9877 Event occurrence: 1455 Event detail code: 50204 Application information: Application domain: /LM/W3SVC/94/ROOT-1-1302342423433586 Trust level: Full Application Virtual Path: / Application Path: C:\HostingSpaces\parthak\itsmywebsite.com\wwwroot\ Machine name: C15472-132183 Process information: Process ID: 28796 Process name: w3wp.exe Account name: C15472-132183\itsmywebsitecom_web Request information: Request URL: http://www.itsmywebsite.com/showproduct.aspx Request path: /showproduct.aspx User host address: 186.xx.xxx.xx User: Is authenticated: False Authentication Type: Thread account name: C15472-132183\itsmywebsitecom_web ViewStateException information: Exception message: Invalid viewstate. Client IP: 186.xx.xxx.xx Port: 29991 Referer: Path: /showproduct.aspx User-Agent: Mozilla/4.0 (compatible; Synapse) </code></pre> <p><strong>ERROR 2</strong> </p> <pre><code>0034c75464ecdd32dee41996bfe 2013-11-24 13:19:52.360 2013-11-24 07:19:52.360 System.Web.Management.WebRequestErrorEvent 8727 1313 3005 0 An unhandled exception has occurred. C:\HostingSpaces\parthak\itsmywebsite.com\wwwroot\ / C15472-132183 http://www.itsmywebsite.com/showproduct.aspx?id=-1%27 System.FormatException Event code: 3005 Event message: An unhandled exception has occurred. Event time: 11/24/2013 7:19:52 AM Event time (UTC): 11/24/2013 1:19:52 PM Event ID: 0034c75464ecdd32dee41996bfe Event sequence: 8727 Event occurrence: 1313 Event detail code: 0 Application information: Application domain: /LM/W3SVC/94/ROOT-1-1302342423433586 Trust level: Full Application Virtual Path: / Application Path: C:\HostingSpaces\parthak\itsmywebsite.com\wwwroot\ Machine name: C15472-132183 Process information: Process ID: 14932 Process name: w3wp.exe Account name: C15472-132183\itsmywebsitecom_web Exception information: Exception type: System.FormatException Exception message: Input string was not in a correct format. Request information: Request URL: http://www.itsmywebsite.com/showproduct.aspx?id=-1%27 Request path: /showproduct.aspx User host address: 178.xxx.xxx.xxx User: Is authenticated: False Authentication Type: Thread account name: C15472-132183\itsmywebsitecom_web Thread information: Thread ID: 31 Thread account name: C15472-132183\itsmywebsitecom_web Is impersonating: False Stack trace: at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer&amp; number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at System.String.System.IConvertible.ToInt32(IFormatProvider provider) at System.Convert.ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) at System.Web.UI.WebControls.Parameter.GetValue(Object value, String defaultValue, TypeCode type, Boolean convertEmptyStringToNull, Boolean ignoreNullableTypeChanges) at System.Web.UI.WebControls.Parameter.GetValue(Object value, Boolean ignoreNullableTypeChanges) at System.Web.UI.WebControls.Parameter.get_ParameterValue() at System.Web.UI.WebControls.ParameterCollection.GetValues(HttpContext context, Control control) at System.Web.UI.WebControls.ObjectDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) at System.Web.UI.WebControls.BaseDataList.GetData() at System.Web.UI.WebControls.DataList.CreateControlHierarchy(Boolean useDataSource) at System.Web.UI.WebControls.BaseDataList.OnDataBinding(EventArgs e) at System.Web.UI.WebControls.BaseDataList.DataBind() at System.Web.UI.WebControls.BaseDataList.EnsureDataBound() at System.Web.UI.WebControls.BaseDataList.CreateChildControls() at System.Web.UI.Control.EnsureChildControls() at System.Web.UI.WebControls.BaseDataList.get_Controls() at MB.TheBeerHouse.Helpers.SetInputControlsHighlight(Control container, String className, Boolean onlyTextBoxes) at MB.TheBeerHouse.Helpers.SetInputControlsHighlight(Control container, String className, Boolean onlyTextBoxes) at MB.TheBeerHouse.Helpers.SetInputControlsHighlight(Control container, String className, Boolean onlyTextBoxes) at MB.TheBeerHouse.Helpers.SetInputControlsHighlight(Control container, String className, Boolean onlyTextBoxes) at MB.TheBeerHouse.Helpers.SetInputControlsHighlight(Control container, String className, Boolean onlyTextBoxes) at MB.TheBeerHouse.UI.BasePage.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) </code></pre> <p>Please guide me how to prevent these errors from occuring.</p> <h1>Update:</h1> <p>The worst part is the -1%27 appended to urls'. Now that I check again, it's used in the following url's</p> <pre><code>http://www.itsmywebsite.com/showproduct.aspx?id=-1%27 [invalid] http://www.itsmywebsite.com/browseproduct.aspx?id=-1%27 [invalid] </code></pre> <p>and so on. None of these url's exist and my Health Monitoring is logging all these errors. I have around 100K of those now in my table.</p> <p>A valid url is <code>http://www.itsmywebsite.com/showproduct.aspx?id=127</code></p> <p>If there's no way to prevent them, can I handle them in my code by redirection or any other best practice so that it does not generate an error and fill up my table</p>
 

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