Develop Reference

Sitecore Experience editor ribbon controls are not loading for specific content author user

When opening any of the page in sitecore edit or preview mode the sitecore ribbon bar controls are not showing and instead its showing the below error (inside iframe only). the page components are getting loaded. This is happening specifically to a content author user and not for other content author users. please clarify whether there is any problem in users details.
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.]
Sitecore.ContentSearch.Client.Pipelines.Search.SearchContentSearchIndex.Process(SearchArgs args) +4314
(Object , Object[] ) +73
Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args) +468
Sitecore.Search.XpathQuerySearcher.SelectItems(String query, Database database) +245
Sitecore.Data.Database.SelectItems(String query) +80
Sitecore.Shell.Applications.WebEdit.Commands.OpenMyItems.GetHeader(CommandContext context, String header) +178
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.FillParamsFromCommand(CommandContext commandContext, RibbonCommandParams ribbonCommandParams) +97
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.GetCommandParameters(Item controlItem, CommandContext commandContext) +78
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.RenderSmallButton(HtmlTextWriter output, Item button, CommandContext commandContext) +77
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.RenderButton(HtmlTextWriter output, Item button, CommandContext commandContext) +633
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.RenderChunk(HtmlTextWriter output, Item chunk, CommandContext commandContext) +343
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.RenderChunk(HtmlTextWriter output, Item chunk, CommandContext commandContext, Boolean isContextual, String id) +243
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.RenderChunk(HtmlTextWriter output, Item chunk, CommandContext commandContext, Boolean isContextual) +160
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.RenderChunks(HtmlTextWriter output, Item strip, CommandContext commandContext, Boolean isContextual) +419
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.RenderStrips(HtmlTextWriter output, Item ribbon, Boolean isContextual, ListString visibleStripList) +1857
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.RenderStrips(HtmlTextWriter output, Item defaultRibbon, Item contextualRibbon, ListString visibleStripList) +161
Sitecore.Web.UI.WebControls.Ribbons.Ribbon.Render(HtmlTextWriter output) +746
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +78
Sitecore.Web.HtmlUtil.RenderControl(Control ctl) +79
Sitecore.Shell.Applications.WebEdit.WebEditRibbonForm.RenderRibbon(Item item) +684
Sitecore.Shell.Applications.WebEdit.WebEditRibbonForm.OnLoad(EventArgs e) +1172
[TargetInvocationException: Exception has been thrown by the target of an invocation.]
System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) +0
System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) +128
System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +142
Sitecore.Reflection.ReflectionUtil.InvokeMethod(MethodInfo method, Object[] parameters, Object obj) +89
Sitecore.Web.UI.Sheer.ClientPage.OnLoad(EventArgs e) +597
System.Web.UI.Control.LoadRecursive() +68
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3429.0

It seems the master db has not been indexed and hence the "my items" and editor ribbon bars are not loaded.
After doing the indexing the issue is resolved and i can able to see the editor ribbon bar.

Unknown error "-1073741823"

I am developing a webapplication with forms authentication enable.
I am getting this error in IIS8(Production) but not in IIS7(Test Environment)
Please let me know for more information. App Pool settings , authentication settings are looks fine.
CryptographicException: Unknown error "-1073741823".]
System.Security.Cryptography.BCryptNative.OpenAlgorithm(String algorithm, String implementation) +5919869
System.Security.Cryptography.BCryptHashAlgorithm..ctor(CngAlgorithm algorithm, String implementation) +231
System.Security.Cryptography.SHA256Cng..ctor() +174
System.Web.UI.EventValidationStore.Hash(String target, String argument) +151
System.Web.UI.DefaultEventValidationProvider.TryLoadEventValidationField(Object eventValidationField) +94
System.Web.UI.ClientScriptManager.EnsureEventValidationFieldLoaded() +298
System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) +80
System.Web.UI.WebControls.DropDownList.LoadPostData(String postDataKey, NameValueCollection postCollection) +80
System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +574
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2773

Finding error after publish my asp.net web application on Godaddy

I have already publish my web application but i am facing an error i tried a lot to fix it and i search a lot on web but i couldnt fix it, so please could you help me to fix this issue.
<connectionStrings>
<add name="BeravaConnectionString"
connectionString="Data Source=156.74.335.445; User ID=varooo; database = betop; Password:Sdvavava"
providerName="System.Data.SqlClient" />
Server Error in '/' Application.
Format of the initialization string does not conform to specification
starting at index 118.
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.ArgumentException: Format of the
initialization string does not conform to specification starting at
index 118.
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:
[ArgumentException: Format of the initialization string does not
conform to specification starting at index 118.]
System.Data.Common.DbConnectionOptions.GetKeyValuePair(String
connectionString, Int32 currentPosition, StringBuilder buffer, Boolean
useOdbcRules, String& keyname, String& keyvalue) +5360365
System.Data.Common.DbConnectionOptions.ParseInternal(Hashtable
parsetable, String connectionString, Boolean buildChain, Hashtable
synonyms, Boolean firstKey) +124
System.Data.Common.DbConnectionOptions..ctor(String connectionString,
Hashtable synonyms, Boolean useOdbcRules) +95
System.Data.SqlClient.SqlConnectionString..ctor(String
connectionString) +59
System.Data.SqlClient.SqlConnectionFactory.CreateConnectionOptions(String
connectionString, DbConnectionOptions previous) +24
System.Data.ProviderBase.DbConnectionFactory.GetConnectionPoolGroup(DbConnectionPoolKey
key, DbConnectionPoolGroupOptions poolOptions, DbConnectionOptions&
userConnectionOptions) +167
System.Data.SqlClient.SqlConnection.ConnectionString_Set(DbConnectionPoolKey
key) +61
System.Data.SqlClient.SqlConnection.set_ConnectionString(String value)
+66 System.Data.SqlClient.SqlConnection..ctor(String connectionString, SqlCredential credential) +26
System.Data.SqlClient.SqlConnection..ctor(String connectionString) +6
beravoSV.Berava.Page_Load(Object sender, EventArgs e) +311
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender,
EventArgs e) +51 System.Web.UI.Control.OnLoad(EventArgs e) +92
System.Web.UI.Control.LoadRecursive() +54
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
+772

I believe it should be Password=Sdvavava, instead of Password:Sdvavava. Use an equals sign instead of a colon, like the other parameters.

Conflict between Sharepoint List Name and Document Library Name

I my share point site I have one List named "People List" and one Wiki Page Library named "People". I have created one visual webpart to display data from People list. I have created webpart property to read listname.The webpart property name for my visual webpart is "People". When I check whether list exists in my site using the following function it returns true:-
public static bool isListExists(SPWeb spWeb, string listName)
{
return spWeb.Lists.TryGetList(listName) != null;
}
But there is no List named "People" exists in my site. Only wiki page library named "People" exists. When I added my webpart in "MySite/People/default.aspx" page I got error.
Column 'Title' does not exist. It may have been deleted by another user.
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.ArgumentException: Column 'Title' does not exist. It may have been deleted by another user.
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:
[ArgumentException: Column 'Title' does not exist. It may have been deleted by another user.]
Microsoft.SharePoint.SPFieldCollection.GetField(String strName, Boolean bThrowException) +26422968
Microsoft.SharePoint.SPListItem.GetValue(String strName, Boolean bThrowException) +47
Microsoft.SharePoint.SPListItem.get_Item(String fieldName) +12
CL.DanceStudio.Portal.CLDance_Instructor.<>c__DisplayClass3.<Select>b__1() +1155
Microsoft.SharePoint.<>c__DisplayClass4.<RunWithElevatedPrivileges>b__2() +729
Microsoft.SharePoint.Utilities.SecurityContext.RunAsProcess(CodeToRunElevated secureCode) +27491206
Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(WaitCallback secureCode, Object param) +27194345
Microsoft.SharePoint.SPSecurity.RunWithElevatedPrivileges(CodeToRunElevated secureCode) +93
CL.DanceStudio.Portal.CLDance_Instructor.CLDance_InstructorUserControl.Select() +291
CL.DanceStudio.Portal.CLDance_Instructor.CLDance_InstructorUserControl.Page_Load(Object sender, EventArgs e) +52
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.AddedControl(Control control, Int32 index) +350
CL.DanceStudio.Portal.CLDance_Instructor.CLDance_Instructor.CreateChildControls() +194
System.Web.UI.Control.EnsureChildControls() +146
System.Web.UI.Control.PreRenderRecursiveInternal() +61
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3394
I think it is due to name conflict. Please provide me a solution.

Object reference not set to an instance of an object. c# RADTreeView telerik

I am creating RadTreeView nodes dynamically and I have created it successfully.But When I try to Add a sub-category node to it,sub-category is added successfully but at the end when I am reloading tree I am getting this error:
Object reference not set to an instance of an object.
[NullReferenceException: Object reference not set to an instance of an object.]
Telerik.Web.UI.RadComboBox.OnInit(EventArgs e) +40
System.Web.UI.Control.InitRecursive(Control namingContainer) +134
System.Web.UI.Control.AddedControl(Control control, Int32 index) +191
System.Web.UI.ControlCollection.Add(Control child) +86
Telerik.Web.UI.GridPagerItem.InitializePagerItem(GridColumn[] columns) +23849
Telerik.Web.UI.GridPagerItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows) +170
Telerik.Web.UI.GridTableView.CreateTopPagerItem(Boolean useDataSource, GridColumn[] copiedColumnSet, Boolean isPagingEnabled, GridTHead thead) +93
Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) +1156
Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) +679
System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +149
System.Web.UI.Control.EnsureChildControls() +83
Telerik.Web.UI.GridTableViewBase.get_Controls() +15
Telerik.Web.UI.GridTableView.GetGridTable() +15
Telerik.Web.UI.RadGrid.PrepareRowsVisibility(GridTableView view) +33
Telerik.Web.UI.RadGrid.PrepareItems() +308
Telerik.Web.UI.RadGrid.ControlPreRender() +64
Telerik.Web.UI.RadCompositeDataBoundControl.OnPreRender(EventArgs e) +41
System.Web.UI.Control.PreRenderRecursiveInternal() +83
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +974
Dont understand this I tried to debug my code using debug point but everthing is executed alright but at the end I am getting this error.

yes after a long research on my code I got the answer that my grid was getting referenced to null.But its very sad that this is such a famous forum but no one was able to understand the stack trace.

I had this issue after a postback with a radgrid, the problem was the Datasourse was null. To fix it you only have to set DataSource = ""