problem about visual-c-ide-Collection of common programming errors

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  msdn
  archived-forums-v-forums visual-c-ide
  HelloI have just started working with the Club starter kit and cannot understand how to rectify this error. Has anyone a suggestion please?Dim lp As LocationsPicker = CType(FormView1.FindControl(“LocationPicker1”), LocationsPicker)The preceding line of code is throwing up anInvalidCastException was unhandled by user codeConversion from type ‘DBNull’ to type ‘string’ is not validThankyou in anticipation
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  msdn
  archived-forums-v-forums visual-c-ide
  Hi,Didn’t get any answers from my other thread. VS crashes as soon as I click anything in the form designer window. I attached a second instance of VS to it to get debug info: System.AccessViolationException was unhandled  Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.  Source=Microsoft.VisualStudio.Shell.Interop  StackTrace:       at Microsoft.VisualStudio.Shell.Interop.IVsTool
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  msdn
  archived-forums-v-forums visual-c-ide
  VS 2005 Crashes when trying to view designer view of a form. The exception thrown is System.IO.FileNotFoundException was unhandled  Message=”Could not load file or assembly ‘SomeDLL’, Version=1.0.1.411, Culture=neutral, PublicKeyToken=null’ or one of its dependencies. The system cannot find the file specified.”Where as the file is there in the referenced path. Application can be build and executed with out any problem. But cannot take designer view. The fun is it makes the whole IDE cr
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  msdn
  archived-forums-v-forums visual-c-ide
  Hi,I’m using visual studio 2010.And when i run the project on debug mode from the visual studio – and some exception is appear i see strange message box that tell me that some exception appear ( the message is “external exception e043…” ).I cant see the line in the code that make the problem and i don’t know in this way what i need to fix in the code.I think this is something with my debug option – but i don’t know how to fix/solve it.The try…catch block does not help – and this me
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  msdn
  archived-forums-v-forums visual-c-ide
  hii have to draw set of line in inkpicture control. iam drawing in two diffrent threads. using the same graphics ie g = inkpicture.cretaegraphics(). normally i call two threads randomly. now it is giving error like An unhandled exception of type ‘System.InvalidOperationException’ occurredin system.drawing.dllAdditional information: The object is currently in use elsewherei think i have to dispose g . how can i do it.
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  msdn
  archived-forums-v-forums visual-c-ide
  At least 10 to 15 times a day at random, Visual Studio crashes with “An unhandled win32 exception occurred in devenv.exe [2520]”The number in square brackets is different. It only crashes on winform applications. It happens across VS versions and machines. We get messages like this: “Unhandled exception at 0x7c812a5b in devenv.exe: 0xe0434f4d” etc…VS 2005 crashes so often, we cannot get any work at all done. I can find no hits at all searching MS – but thousands of complain
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  archived-forums-v-forums visual-c-ide
  Hi,I would like to ask for help in solving the problem I have came across recently :I have created control derived from DataGridView without specifying any columns.Then, I have put this control on a Form, and added some columns to it.Now, when I want to edit colums, exception is being thrown :”System.NullReferenceException : Object reference not set to an instance of an object”The “Stack trace” field on error dialog box is empty.I would be grateful for your advice.Best regardsTomekIt seems that
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  archived-forums-v-forums visual-c-ide
  I am wroking with Visual Studio 2005 Professional Edition. currently i developed by a ASP.NET 2.0 web Application. i create a usercontrol (combobox). combobox code given below.namespace New.Web.Controls{    using System;    using System.Collections.Specialized;    using System.Data;    using System.Text;    using System.Web.UI;    using System.Web.UI.HtmlControls;    public class ComboBox : C
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  archived-forums-v-forums visual-c-ide
  public vw_InsContract_FindItemsRow this[int index] {get {return ((vw_InsContract_FindItemsRow)(this.Rows[index]));}}I’m using VS 2005.  I above routine is throwing this exception when I try to use the X to close the program.  It is referring to a drop down combo box that returns a list of Items from a SQL database stored procedure.  How do I handle this exception so it won’t be overwritten then the code is regenerated?India
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  msdn
  archived-forums-v-forums visual-c-ide
  Hi all,When editing an XML document based on a particular set of schemas, I keep getting the following in the Errors tab:Unhandled ‘System.NullReferenceException’ in XML EditorObject reference not set to an instance of the objectThings were going fine until I did inheritance in one of the schemas in the set (complexType that has complexContent that extends a complexType)…  Now it seems that I’m toast.The problem only occurs when I open an XML document based on that schema.  Opening other docum

Originally posted 2013-11-27 12:31:10.