Storing Equal Signs (=) In XML Documents?
Sep 10, 2010
I'm facing a problem that Google couldn't solve yet!I'm trying to store URLs in an XML file. Problem is that these URLs contain Equal Signs (=) in them. And that generates an error.Here is my code: (**token is a variable that contains the URL)
Dim child As String = vbCrLf & "<Link URL='" & token & "'></Link>"
Dim fragment As XmlDocumentFragment = doc.CreateDocumentFragment
fragment.InnerXml = child
The error message: (Error line and position are meaningless here) '=' is an unexpected token. The expected token is ';'. Line 2, position 133.I've replaced all '&' symbols with '&' in case they were the ones causing the error, but no luck so far.
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Here is the code:
Code:
Dim intusercount As Integer = 0
Using connection As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Database.mdf;Integrated Security=True;User Instance=True")
Using command As New SqlCommand("SELECT [ID] FROM [Members] WHERE [Username]=@Username AND [Password]=@Password", connection)
command.Parameters.Add("@Username", Data.SqlDbType.VarChar).Value = TextBox1.Text
command.Parameters.Add("@Password", Data.SqlDbType.VarChar).Value = TextBox2.Text
connection.Open()
intusercount = command.ExecuteScalar
connection.Close()
If intusercount > 0 Then
MsgBox("Good")
Else
MsgBox("Bad")
End If
End Using
End Using
Error:
The data types text and varchar are incompatible in the equal to operator.
Source Error:
Quote:
Line 11: command.Parameters.Add("@Password", Data.SqlDbType.VarChar).Value = TextBox2.Text
Line 12: connection.Open()
Line 13: intusercount = command.ExecuteScalar
Line 14: connection.Close()
Line 15: If intusercount > 0 Then
Stack:
Code:
[SqlException (0x80131904): The data types text and varchar are incompatible in the equal to operator.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +2030802
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +5009584
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2275
System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +33
System.Data.SqlClient.SqlDataReader.get_MetaData() +86
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +311
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +987
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
System.Data.SqlClient.SqlCommand.ExecuteScalar() +139
_Default.Button1_Click(Object sender, EventArgs e) in C:UsersUserDocumentsVisual Studio 2010WebSitesWebSite13Default.aspx.vb:13
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System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +112
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System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563
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