First of all, I'd like to apologize in advance for my lack of proficiency in the area of C#.
Although I have very little knowledge of the subject I was in a situation where I needed to create an exact copy of a website. The website is using .NET 4.0, runs on IIS 7 with MSSQL Server 2008. The new website is set up as a subdomain of the old one.
I did a full backup of the original database, created a new database and "restored" it with the orginal's backup. The only thing I changed was the .mdf and .ldf files.
I then copied and pasted the actual files to the new folder and changed the config files with the new database.
Everything works perfectly until you add/delete news to/from the database. At that point, the front page of the website renders the following message:
Server Error in '/' Application.
Length cannot be less than zero.
Parameter name: length
Stack trace:
[ArgumentOutOfRangeException: Length cannot be less than zero.
Parameter name: length]
System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy) +10082776
Tang.Core.Utility.HtmlHelper.CutText(String rawText, Int32 length) +242
Tang.Website.UC.ArticleItems.GetLegacyDataTable(Int32 collectionId, Int32 maxRecord) +2172
Tang.Website.UC.ArticleItems.Page_Load(Object sender, EventArgs e) +150
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
System.Web.UI.Control.OnLoad(EventArgs e) +132
System.Web.UI.Control.LoadRecursive() +66
System.Web.UI.Control.LoadRecursive() +191
System.Web.UI.Control.LoadRecursive() +191
System.Web.UI.Control.LoadRecursive() +191
System.Web.UI.Control.LoadRecursive() +191
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428
Another error is when a user is logged in (again "length cannot be zero"):
<%-- <p class="news_date"><%# Eval("collectionitemdatetime", "{0:d}") %></p>--%>
<p class="news_cont">
**<%# Tang.Core.Utility.HtmlHelper.CutText( Eval("collectionitemtext").ToString(), 450) %>** --> THIS IS WHERE THE PROBLEM IS, OBVIOUSLY STRING IS EMPTY?</p>
</div>
</ItemTemplate>
I am totally lost as nothing "major" has been edited from the original. I must be doing something wrong with the database.
EDIT: The thing is, as soon as I change the datbase from the webconfig file [to the original database], everything works, I can add/remove/edit items and they are shown on the home page. So it's gotta be something between the website & the database and not code-related
EDIT 2, Found a solution: I deleted the database, created a new one and instead of doing a "restore", I did "Export" from the original one. I had to set the primary keys manually and change some of them to (Is Identify) - Yes because I was getting the same error. Not the most elegant solution but at least everything seems to be working now.
Thank you all for your help!
Looks like length parameter comes with -1 value to CutText function. Is there an ORM tool you use? If you use Entity framework, you must set your connection string proper. Maybe your sql security properties doesn't let you to add. Sure look at your db when you add a news.
Related
NET application that was running on Windows Server 2003 and now it's been upgraded to Windows Server 2012.
The application has several report made in Crystal Report and whenever those reports are fed a dataset I get the following error:
Error in File C:\Windows\TEMP\temp_8906e55c-36b9-40f1-8385-7bf2fafe324c {9D8F44CC-FC36-4F28-916B-DAD28922C786}.rpt:
The request could not be submitted for background processing.
[COMException (0x800002ad):
Error in File C:\Windows\TEMP\temp_8906e55c-36b9-40f1-8385-7bf2fafe324c {9D8F44CC-FC36-4F28-916B-DAD28922C786}.rpt:
The request could not be submitted for background processing.]
CrystalDecisions.ReportAppServer.Controllers.DatabaseControllerClass.ReplaceConnection(Object oldConnection, Object newConnection, Object parameterFields, Object crDBOptionUseDefault) +0
CrystalDecisions.CrystalReports.Engine.Table.SetDataSource(Object val, Type type) +1084
CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDataSourceInternal(Object val, Type type) +280
[InternalException:
Error in File C:\Windows\TEMP\temp_8906e55c-36b9-40f1-8385-7bf2fafe324c {9D8F44CC-FC36-4F28-916B-DAD28922C786}.rpt:
The request could not be submitted for background processing.]
CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e) +789
CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDataSourceInternal(Object val, Type type) +327
CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDataSource(DataSet dataSet) +91
CCD.Tresorerie.SWAP.Reports.ReportExtensions.SetSQLQuery(ReportClass report, ReportQuery query) in C:\ProjetTFS\SWAP\DEV\merciera[ReHmai2015]\Sources\CCD.Tresorerie.SWAP.Reports\ReportExtensions.cs:80
CCD.Tresorerie.SWAP.Reports.ReportExtensions.SetSQLQuery(ReportClass report, List`1 queries) in C:\ProjetTFS\SWAP\DEV\merciera[ReHmai2015]\Sources\CCD.Tresorerie.SWAP.Reports\ReportExtensions.cs:70
CCD.Tresorerie.SWAP.BusinessProcessor.ReportHelper.SetReportPropertyMeta(ReportProperties reportProperty, ReportClass report) in C:\ProjetTFS\SWAP\DEV\merciera[ReHmai2015]\Sources\CCD.Tresorerie.SWAP.BusinessProcessor\ReportHelper.cs:23
CCD.Tresorerie.SWAP.App.Web.Rapports.ShowReportViewer.ShowReport(eReport reportName) in C:\ProjetTFS\SWAP\DEV\merciera[ReHmai2015]\Sources\CCD.Tresorerie.SWAP.App.Web\Rapports\ShowReportViewer.aspx.cs:646
CCD.Tresorerie.SWAP.App.Web.Rapports.ShowReportViewer.Page_Init(Object sender, EventArgs e) in C:\ProjetTFS\SWAP\DEV\merciera[ReHmai2015]\Sources\CCD.Tresorerie.SWAP.App.Web\Rapports\ShowReportViewer.aspx.cs:45
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
System.Web.UI.Control.OnInit(EventArgs e) +132
System.Web.UI.Page.OnInit(EventArgs e) +16
System.Web.UI.Control.InitRecursive(Control namingContainer) +143
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1477
I am feeding the dataset to the report as such :
DataSet ds = new DataSet();
ds.Tables.Add(ToDataTable<RistournesAD>(ristournes));
ds.Tables[0].TableName = "RistournesAD";
rapport.SetDataSource(ds);
It is important to denote that on the Windows server 2003 there are no errors when generating the reports in the application. All the reports that were using a stored procedure are still working perfectly fine. We rewrote a few reports to change the datasource from dataset to stored procedure and those reports begun working again.
As a temporary fix, in the IIS hosting the application we setted Enable 32-bit applications to true in the application pool. After this the reports using datasets were working properly. I would want to avoid doing this as the goal of running the application on winserver 2008 was to run them as 64bits applications.
I have looked at all the articles that I could find online and none of them were of any help. Let me know if I can provide any additional information to fix this problem.
Thank you
We have a custom built web application built on ASP (2.0 it looks like) using C#. We recently moved it from an IIS6 environment to an IIS7. We have run into an issue where a page set up to view images that had been retrieved via a search is throwing an error. The code takes a copy of the image file and puts it into a work directory renaming the copy to the user's name.
bmpList[0].Save("c:\\inetpub\\wwwroot\\SiteName\\Work\\" + ((ImageUser)Session["ImageUser"]).Username + ".TIF", info, encParams);
I know that the wwwroot is no longer a valid directory in the path so I changed it to...
bmpList[0].Save("c:\\inetpub\\SiteName\\Work\\" + ((ImageUser)Session["ImageUser"]).Username + ".TIF", info, encParams);
Saved the file, did and IIS restart and cleared my browser cache and still receive an error...
A generic error occurred in GDI+.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Runtime.InteropServices.ExternalException: A generic error occurred in GDI+.
Source Error:
Line 180:
Line 181: //bmpList[0].Save("c:\\pi\\" + ((ImageUser)Session["ImageUser"]).Username + ".TIF", info, encParams);
Line 182: bmpList[0].Save("c:\\inetpub\\wwwroot\\SiteName\\Work\\" + ((ImageUser)Session["ImageUser"]).Username + ".TIF", info, encParams);
Line 183:
Line 184: for (int a = 1; a < numFiles; a++)
Source File: c:\inetpub\Sitename\SiteApp\View.aspx.cs Line: 182
Stack Trace:
[ExternalException (0x80004005): A generic error occurred in GDI+.]
System.Drawing.Image.Save(String filename, ImageCodecInfo encoder, EncoderParameters encoderParams) +615209
View.Page_PreRender(Object sender, EventArgs e) in c:\inetpub\SiteName\SiteApp\View.aspx.cs:182
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
System.Web.UI.Control.OnPreRender(EventArgs e) +11056766
System.Web.UI.Control.PreRenderRecursiveInternal() +108
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3394
It seems like a fairly straightforward thing but for some reason it is not updating (the path in the error remains exactly the same). What am I missing?
Almost all the time (i.e 99.9999% of the times), when using GDI, 'a generic error occured' means that the directory you are trying to save to doesn't have the proper permissions. Typically, you need to make sure that directory is allowing asp.net to modify files. Did you check the permission on the directory you are trying to save the files to?
So oddly enough the answer is actually as simple as it looks... almost.
Changing...
c:\inetpub\wwwroot\SiteName\Work\
to...
c:\inetpub\SiteName\Work\
worked. Why it was continuing to give me the same error from the browser after I changed the code on the .cs file was that the IP that they had bound to the site still belonged to a previous version of the machine so DNS was routing me over to that box instead. All said it ended up I was on the wrong OSI model layer. I only discovered it when I went to build a test version on the same box and went to unbind the IP from the broken site and bind it to my second test site and I found that the IP I wanted wasn't an option (so it must have been manually entered). Live and learn. Thanks for the input and advise.
I'm having weird issues with code generated with netTiers. I've tried to use the framework provided in a simple form to save information on one of the entities created.
Here is the method I'm calling from an ASPX page:
public void UpdateSupplier(Object sender, EventArgs e)
{
// Update Supplier name and code from update form
supplier.Name = txtName.Text;
supplier.Code = txtCode.Text;
// Save the Changes - Exception happens on next line!
PPGEDI.Data.DataRepository.SuppliersEntityEntityProvider.Save(supplier);
// Reload the information from the database to display
ReLoadInformation();
}
When I call that method from a button click on the aspx page, i get the following exception information:
Server Error in '/' Application.
The configuration file entlib.config could not be found.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.IO.FileNotFoundException: The configuration file entlib.config could not be found.
Source Error:
Line 190: public override void DoValidate(object objectToValidate, object currentTarget, string key, ValidationResults validationResults)
Line 191: {
Line 192: Validator validator = new ValidationIntegrationHelper(this).GetValidator();
Line 193:
Line 194: if (validator != null)
Source File: PPGEDI.Entities\Validation\PropertyValidator.cs Line: 192
Stack Trace:
[FileNotFoundException: The configuration file entlib.config could not be found.]
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.FileConfigurationSource.GetRootedCurrentConfigurationFile(String configurationFile) +221
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.FileConfigurationSource..ctor(String configurationFilepath, Boolean refresh, Int32 refreshInterval) +45
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.FileConfigurationSource..ctor(String configurationFilepath, Boolean refresh) +48
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.FileConfigurationSource..ctor(String configurationFilepath) +39
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.FileConfigurationSourceElement.CreateSource() +64
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ConfigurationSourceFactory.Create(String name) +355
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ConfigurationSourceFactory.Create() +96
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.EnterpriseLibraryContainer.CreateDefaultContainer() +25
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.EnterpriseLibraryContainer.SetCurrentContainerIfNotSet() +84
Microsoft.Practices.EnterpriseLibrary.Common.Configuration.EnterpriseLibraryContainer.get_Current() +22
Microsoft.Practices.EnterpriseLibrary.Validation.ValidationFactory.get_DefaultCompositeValidatorFactory() +25
Microsoft.Practices.EnterpriseLibrary.Validation.PropertyValidationFactory.GetPropertyValidatorFromAttributes(Type type, PropertyInfo propertyInfo, String ruleset, MemberAccessValidatorBuilderFactory memberAccessValidatorBuilderFactory) +166
Microsoft.Practices.EnterpriseLibrary.Validation.PropertyValidationFactory.GetPropertyValidator(Type type, PropertyInfo propertyInfo, String ruleset, ValidationSpecificationSource validationSpecificationSource, MemberAccessValidatorBuilderFactory memberAccessValidatorBuilderFactory) +264
Microsoft.Practices.EnterpriseLibrary.Validation.PropertyValidationFactory.GetPropertyValidator(Type type, PropertyInfo propertyInfo, String ruleset, ValidationSpecificationSource validationSpecificationSource, MemberValueAccessBuilder memberValueAccessBuilder) +71
Microsoft.Practices.EnterpriseLibrary.Validation.Integration.ValidationIntegrationHelper.GetValidator() +106
PPGEDI.Entities.Validation.PropertyValidator.DoValidate(Object objectToValidate, Object currentTarget, String key, ValidationResults validationResults) in PPGEDI.Entities\Validation\PropertyValidator.cs:192
Microsoft.Practices.EnterpriseLibrary.Validation.Validator.Validate(Object target) +80
PPGEDI.Entities.EntityBaseCore.Validate(String propertyName) in PPGEDI.Entities\EntityBaseCore.generated.cs:477
PPGEDI.Entities.EntityBaseCore.OnPropertyChanged(PropertyChangedEventArgs e) in PPGEDI.Entities\EntityBaseCore.generated.cs:342
PPGEDI.Entities.EntityBaseCore.OnPropertyChanged(String propertyName) in PPGEDI.Entities\EntityBaseCore.generated.cs:329
PPGEDI.Entities.SuppliersEntityBase.set_Name(String value) in SuppliersEntityBase.generated.cs:279
PPGEDI.Supplier.Supplier_Main_Config.UpdateSupplier(Object sender, EventArgs e) in Supplier_Main_Config.aspx.cs:29
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +118
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +112
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.225
The following method seems to be the one that is causing the exception:
/// <summary>
/// Does the validate.
/// </summary>
/// <param name="objectToValidate">The object to validate.</param>
/// <param name="currentTarget">The current target.</param>
/// <param name="key">The key.</param>
/// <param name="validationResults">The validation results.</param>
public override void DoValidate(object objectToValidate, object currentTarget, string key, ValidationResults validationResults)
{
// Exception Error on next line!!!
Validator validator = new ValidationIntegrationHelper(this).GetValidator();
if (validator != null)
{
ValidationResults results = validator.Validate(this);
if (!results.IsValid)
{
validationResults.AddAllResults(results);
}
}
}
Now, here is the weirdest thing. I put breakpoints in to trace through and find the issue. I hit F5 in my browser, and there was no exception error. After some trial and error, I've found that I get this exception error every time I submit the form, but if I hit F5, it resubmits fine without error, and the update does happen in the database. It would be greatly appreciated if someone could advise as to why this would be happening and what I can do to fix this error. The entlib.config file is indeed in the project, It was generated as well, and I've verified that it does actually exist.
The information on the EntLib that is being called with the ValidationIntegrationHelper is:
Assembly Microsoft.Practices.EnterpriseLibrary.Validation.dll, v2.0.50727
UPDATE: I still haven't been able to figure out how to fix this, so I did a terrible thing, I put a try/catch block around the code in DoValidate, so that it won't blow up on me. I needed to get this not to break while the clients are using it, but I still need to figure out why it is doing this, and fix it, instead of ignoring it before we are into production. If it just handles validation, then I can handle ignoring it, because I'm validating on the front side before saving or updating the entities.
The issue seems to be just in the Enterpise Library validation. I regenerated the project with NetTiers validation and I don't have the issue. I wasn't able to figure out what the issue was, but generating the project with the NetTiers validation made the problem go away.
I'm using localReport to print PDF (SQL REPORTVIEWER). It works fine on localhost. When I move the application to Production (64 bits windows 2008) it gives me an error. (see below)
I put the renderedbytes in a Session in USERCONTROL and I do window.open('Program1.aspx')...
In page load of Program1.aspx I try to retrieve the Session variable and process....
I think this statement cause the error "Response.BinaryWrite (...) etc".
It works on my local pc (Vista 32bits)...
Can someone please what the errors says? and How can I solve this on production??????
thank you..
USERCONTROL1.ASCX
byte[] renderedBytes;
renderedBytes = localReport.Render(
reportType,
deviceInfo,
out mimeType,
out encoding,
out fileNameExtension,
out streams,
out warnings);
Session["report"] = Print.RenderReport(listEnt, Language);
PROGRAM2.ASPX
protected void Page_Load(object sender, EventArgs e)
{
string extension = "PDF";
Response.ContentType = "application/pdf";
// set the MIME type here
Response.AddHeader("content-disposition", "inline: filename=Test." + extension);
Response.BinaryWrite((byte[])Session["report"]);
Response.End();
}
Server Error in '/' Application.
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
System.Web.HttpResponse.BinaryWrite(Byte[] buffer) +13
ConfederatieBouw.CustomModules.Controle_InhoudingsPlicht.WebForm1.Page_Load(Object sender, EventArgs e) +191
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsync
Are you running a web farm in production? If so, how are you storing session state? The default is InProc, which means the session will only exist on one server in the farm, and if the follow up request goes to another server, that would explain the issue. The fix this scenario, you will need to setup some sort of session state that can be shared across servers (such as a session state server or SQL Server session state).
Here is some info on the various session state providers:
http://msdn.microsoft.com/en-us/library/ms178586.aspx
Session["report"] is null. You're not setting it to renderBytes in the user control.
Also, it's a really bad idea to store this in a Session. Your binary data has to be serialized/encoded and then deserialized/unencoded whenever you set the Session[] value, which performs poorly. Create a property on the user control to accept the report object and write it to the output stream there, or just do it in the page itself. I'm not sure that it makes sense to put this in a user control instead of a regulat class, anyway.
Here's what's going on. I'm opening a file on FTP that exists using a WebClient. The file exists and the function has worked in the past, but now for some reason throws an exception. (System.Net.WebException: The remote server returned an error: (550) File unavailable (e.g., file not found, no access).). The funny thing is, the script still opens the file and does what it's supposed to. Has anyone ever heard of anything like this?
WebClient downloadRequest = new WebClient();
downloadRequest.Credentials = new NetworkCredential(pusername, ppassword);
byte[] downloadBytes = downloadRequest.DownloadData(purl);
Here's the stack trace:
[WebException: The remote server returned an error: (550) File unavailable (e.g., file not found, no access).]
System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request) +287
System.Net.WebClient.DownloadData(Uri address) +106
System.Net.WebClient.DownloadData(String address) +29
ftp_connect.copyFile(String purl, String pusername, String ppassword, String pubordev) in d:\wwwdev\test\ftp\ftpconnect.aspx.cs:112
ftp_connect.copyFolder(String purl, String pusername, String ppassword, String pubordev) in d:\wwwdev\test\ftp\ftpconnect.aspx.cs:160
ftp_connect.Page_Load(Object sender, EventArgs e) in d:\wwwdev\test\ftp\ftpconnect.aspx.cs:93
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
Presumably the file is there from a previous successful run?
The script might be using a version of the file saved when the Web request was still working.
Maybe the file is in user by some other client/user.
It turns out that I was calling a function which called the function I was trying to get to.
So, the solution I guess was to look at the stack. Should have done that first.