Solve: Error 0x80070057 on copying files (In Windows 8.1)

When you try to copy file to your SDcard or External storage the following error message appeared:

"An unexpected error is keeping you from copying the file. If you continue to receive this error, you can use the error code to search for help with this problem."

Solution:

1. Run Command Prompt as Administrator. 

Type cmd -> Right Click -> choose Run as Administrator

Solve: Your project references the latest version of Entity Framework (for MySQL) in Visual Studio 2013

The error message while trying to create a ADO.net Entity Data Model ( Entity Framework 6 ) for MySql Database in Microsoft Visual Studio 2013

"Your project references the latest version of Entity Framework; however, an Entity Framework database provider compatible with this version could not be found for your data connection. if you have already installed a have already installed a comptible provider, ensure you have rebuilt your project before performing this action. Otherwise, exit this wizard, install a compatible provider, and rebuid your project before performing this action."

Solution: 

Solve: Unexpected error writing metadata to file 'App.exe' - Not enough storage is available to complete this operation

If you get an error 
"Unexpected error writing metadata to file 'C:\Projects.2012\obj\x86\Debug\QurSaan.exe' -- 'Not enough storage is available to complete this operation."
after build your project under Visual Studio 2010.

Solution:
1. Clean Solution
2. Close Visual Studio 2010.
3. Delete all Files under C:\Projects.2012\obj\x86\Debug\ Directory.

4. Start Visual Studio 2010 and Build Solution.

Solve: Error while displaying crystal report using visual studio 2010, 2012, 2013

The error message while trying to display crystal report using visual studio 2010
System.IO.FileNotFoundException was unhandled
Could not load file or assembly 'file:///C:\Program Files (x86)\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86\dotnet1\crdb_adoplus.dll' or one of its dependencies. The system cannot find the file specified.
 Source=mscorlib
 FileName=file:///C:\Program Files (x86)\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86\dotnet1\crdb_adoplus.dll
 FusionLog==== Pre-bind state information ===
 LOG: User = WKST04\GARYB
 LOG: Where-ref bind. Location = C:\Program Files (x86)\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win32_x86\dotnet1\crdb_adoplus.dll
 LOG: Appbase = file:///D:/S_and_G/LMS_DotNet/LMS_Solution/LMS/bin/Debug/
 LOG: Initial PrivatePath = NULL
 Calling assembly : (Unknown).

Solution: 

Solve: System.IndexOutOfRangeException on Fire Event DataGridView Rows

Fire any event on DataGridView may appear the following error:

System.IndexOutOfRangeException: Index -1 does not have a value.
    at System.Windows.Forms.CurrencyManager.get_Item(Int32 index)
    at System.Windows.Forms.CurrencyManager.get_Current()
    at System.Windows.Forms.DataGridView.DataGridViewDataConnection.OnRowEnter(DataGridViewCellEventArgs e)
    at System.Windows.Forms.DataGridView.OnRowEnter(DataGridViewCell& dataGridViewCell, Int32 columnIndex, Int32 rowIndex, Boolean canCreateNewRow, Boolean validationFailureOccurred)
    at System.Windows.Forms.DataGridView.SetCurrentCellAddressCore(Int32 columnIndex, Int32 rowIndex, Boolean setAnchorCellAddress, Boolean validateCurrentCell, Boolean throughMouseClick)
    at System.Windows.Forms.DataGridView.OnCellMouseDown(HitTestInfo hti, Boolean isShiftDown, Boolean isControlDown)
    at System.Windows.Forms.DataGridView.OnCellMouseDown(DataGridViewCellMouseEventArgs e)
    at System.Windows.Forms.DataGridView.OnMouseDown(MouseEventArgs e)
    at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
    at System.Windows.Forms.Control.WndProc(Message& m)
    at System.Windows.Forms.DataGridView.WndProc(Message& m)
    at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
    at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
    at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Solve: HTTP Error 404.2 - Not Found

The page you are requesting cannot be served because of the ISAPI and CGI Restriction list settings on the Web server.

Solution:

• Open the IIS Manager and navigate to the server level. 

Solve: HTTP Error 404.17 - Not Found

HTTP Error 404.17 - Not Found - Static File Handler

1. Install .Net Framework4.0 on your IIS server. 
2. run "aspnet_regiis -i" in "C:\Windows\Microsoft.NET\Framework\v4.0.21006"

How to: Close Windows form while doing CreateHandle()

The error Value Close() cannot be called while doing CreateHandle() usually happens when we try to close the form in the constructor or Load event.

For example,

the following code gives the error:

private void frmCustomer_Load(object sender, EventArgs e)
{
if (!Valid())
this.Close;
}

The Solution: