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SharePoint yammer integration error: System.Exception: Unable to load the web part. IsEdit: False, IsAsync: False, FormMode: Invalid, SharedProperties: {"site_url":"http:// ","service_account":"true","webpart_guid":" ","iframe":"true","version":" "} at Yammer.SharePoint.WebParts.YammerAppsWebPart.CreateChildControls()

Hi there,  if you are searching for below error ..  System.Exception: Unable to load the web part. IsEdit: False, IsAsync: False, FormMode: Invalid, SharedProperties: {"site_url":"http:// ","service_account":"true","webpart_guid":" ","iframe":"true","version":" "} at Yammer.SharePoint.WebParts.YammerAppsWebPart.CreateChildControls()  The solution you can try could be disabling uploading file attachments to yammer. Below are the steps: 1.Select your webapplication from CA > Manage web apps 2.On the Ribbon>Yammer>Yammer Settings 3.Deselect 'Enable uploading file attachments to Yammer' 4.Click 'Save Settings'. And you are done! You can now add yammer web part to page and can check again.
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load report failed error - with formatted crystal reports, iis6 and asp.net.net

Error:  load report failed This error troubled us a lot in reports deployment on 64bit server with IIS 6   and took at least 5 hours continuous focus to fix.  We tried to troubleshoot by giving all permissions to the iis user to application folder, application pool recycled,   server reboot and even compared all deployment files in the problem environment with the one in application working environment. But we are failed to fix. 
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Test method AddItemRankTest threw exception: System.ServiceModel.ActionNotSupportedException: The message with Action 'urn:xxx.com:xxx /AddItemRank' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and …

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LINQ Errors: “The Type arguements for method cannot be inferred from the usage. Try specifying the type arguments explicitly ” & for the data context object “There is no implicit reference conversion from XXX RepositoryContainer(ReportContext) to System.Data.Objects.ObjectContext”.

Day before yesterday, we faced minor problem in compiling our wcf service which is using LINQ for DML operations.  It’s continuously yielding in giving the errors like “The Type arguments for method cannot be inferred from the usage. Try specifying the type arguments explicitly ” & for the data context object “There is no implicit reference conversion from XXX RepositoryContainer(ReportContext) to System.Data.Objects.ObjectContext  ”.
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Implement Serverside ViewState

If you think your website is running slowly and you need to improve performance by 150% in short time . This may help you a lot. ASP.NET ViewState is a great mechanism that simplifies the life of ASP.NET developers. But, as everybody knows, the .NET Framework saves the ViewState data as a hidden field on your ASPX page. If your page has only a few controls, this is not a problem. But, if your page has some Panel s and/or some DataGrid s, with the technique demonstrated on this article, you could reduce dramatically the load time of the page.
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Using IsInRole() with Forms Authentication

A Little background…. Page object provides User [ System.Security.Principal.IPrincipa l ] in order to access to the information about the current authenticated user. User is having following two important members. These members provide way to implement Role-based authorization programmatically. Identity [Property] [ System.Security.Principal.IPrincipal.Identity ] – This property provides important members like AuthenticationType, IsAuthenticated, Name. IsInRole [Method] [ System.Security.Principal . IPrincipa l ] – This method takes single parameter that is string value of Role for which to check the membership.
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