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POobject reference not set to an instance of object
 

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  1. POobject reference not set to an instance of object
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    <p>I have a webapplication that only for saving a uploadded video file's path to the sqlserver database.i have a bussiness logicslayer in the application.</p> <p>I am using asp.net/vb.net. I put this in the bll for connecting with stored procedure,</p> <pre><code> Dim Db As Database = DatabaseFactory.CreateDatabase() </code></pre> <p>there is a error that--</p> <pre><code>object reference not set to an instance of an object </code></pre> <p>if any one knows please help me. </p> <p>Here is the stack trace:</p> <pre><code>[NullReferenceException: Object reference not set to an instance of an object.] Microsoft.Practices.EnterpriseLibrary.Data.DatabaseConfigurationView.get_DefaultName() +38 Microsoft.Practices.EnterpriseLibrary.Data.DatabaseMapper.MapName(String name, IConfigurationSource configSource) +65 Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.ConfigurationNameMappingStrategy.BuildUp(IBuilderContext context, Type t, Object existing, String id) +122 Microsoft.Practices.ObjectBuilder.BuilderBase`1.DoBuildUp(IReadWriteLocator locator, Type typeToBuild, String idToBuild, Object existing, PolicyList[] transientPolicies) +316 Microsoft.Practices.ObjectBuilder.BuilderBase`1.BuildUp(IReadWriteLocator locator, Type typeToBuild, String idToBuild, Object existing, PolicyList[] transientPolicies) +168 Microsoft.Practices.ObjectBuilder.BuilderBase`1.BuildUp(IReadWriteLocator locator, String idToBuild, Object existing, PolicyList[] transientPolicies) +104 Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.EnterpriseLibraryFactory.BuildUp(IReadWriteLocator locator, IConfigurationSource configurationSource) +228 Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.EnterpriseLibraryFactory.BuildUp(IConfigurationSource configurationSource) +65 Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ObjectBuilder.NameTypeFactoryBase`1.CreateDefault() +72 Microsoft.Practices.EnterpriseLibrary.Data.DatabaseFactory.CreateDatabase() +86 Uploader.BllUpdate.SaveFileDetails() in D:\Developers\Sinoy\uploader\Uploader\Uploader\BLL\BllUpdate.vb:37 Uploader.Upload.UploadBtn_Click(Object sender, EventArgs e) in D:\Developers\Sinoy\uploader\Uploader\Uploader\Forms\Upload.aspx.vb:17 System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102 </code></pre>
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    1. PTQuestion
    1. USSantosh Panda
    1. USuser85511
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    1. COTag your question with the technology used. That looks like it might be visual basic, but I don't know what kind. You won't get an answer as it currently is.
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      1. POobject reference not set to an instance of object
      1. USPaul McMillan
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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