System.OverflowException: Value Was Either Too Large Or Too Small For An Int32.

Mar 23, 2008

System.OverflowException: Value was either too large or too small for an
Int32.
 Why does this error originate in the following line?
"SqlCommand cmd = new SqlCommand("SELECT Count(*) FROM Contacts", conn)
........ ..........
DataSetContacts.ContactsRow row = ds.Contacts.NewContactsRow();
..................
row["ContactNumber"] = Convert.ToInt32(txtContactNo.Text);"
 
ContactNumber field is SqlDbType.Int.
 

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Hi, all experts here,



Thank you very much for your kind attention.



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With best regards,



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Hello everyone,

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-----------------------------------------------
Sub ExpiaryDate(ByVal Expr1 As String, ByVal Expr2 As String)

Dim strSQLDDL As String = "SELECT STATMENT "

Dim SQlCommand As New SQlCommand(strSQLDDL, mySqlConnection)
SQlCommand.CommandType = CommandType.Text

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Dim Course_ID As String = Int32.Parse(Expr2)

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End Sub

Everything was fine as far as i am passing an integer.
Now i need to pass a combination of numbers and letters( NVarChar)

HOW DO I GETAROUND THIS PROBLEM
WHEN I USE THIS FUNCTION I GET ERRORS
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AS AN ERROR

CAN ANYBODY PLEASE HELP
HOW DO I PASS A NVarChar instead
THANKS

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Private Sub btnPlace_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPlace.Click
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[code]...

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my stored procedureALTER PROCEDURE sp_addcustomer

(@customerid as int,
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@address as char(10),@city as char(10),
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)

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values(@customerid ,@fname ,@lname ,@companyname,@email,@address,@city,@zip,@country,@phone,@state)
RETURN
 
CODE IN C# IS
 SqlConnection cn = new SqlConnection(Session["conn"].ToString());
cn.Open();SqlCommand cmd = new SqlCommand();
cmd.Connection = cn;cmd.CommandType = CommandType.StoredProcedure;cmd.CommandText = "sp_addcustomer";
 
//SqlParameter p1, p2, p3, p4, p5, p6, p7, p8, p9, p10,p11;cmd.Parameters.Add(new SqlParameter("@customerid",SqlDbType.Int));
cmd.Parameters["@customerid"].Value =CustomerID.Text;cmd.Parameters.Add(new SqlParameter("@fname", SqlDbType.Char));
cmd.Parameters["@fname"].Value = fname.Text;cmd.Parameters.Add(new SqlParameter("@lname", SqlDbType.Char));
cmd.Parameters["@lname"].Value = lname.Text;cmd.Parameters.Add(new SqlParameter("@companyname", SqlDbType.Char));
cmd.Parameters["@companyname"].Value = companyname.Text;cmd.Parameters.Add(new SqlParameter("@email", SqlDbType.NVarChar));
cmd.Parameters["@email"].Value = email.Text;cmd.Parameters.Add(new SqlParameter("@address", SqlDbType.Char));
cmd.Parameters["@address"].Value = address.Text;cmd.Parameters.Add(new SqlParameter("@city", SqlDbType.Char));
cmd.Parameters["@city"].Value = city.Text;cmd.Parameters.Add(new SqlParameter("@zip", SqlDbType.NVarChar));
cmd.Parameters["@zip"].Value = zip.Text;cmd.Parameters.Add(new SqlParameter("@country", SqlDbType.Char));
cmd.Parameters["@country"].Value = Country.Text;cmd.Parameters.Add(new SqlParameter("@phone", SqlDbType.NVarChar));
cmd.Parameters["@phone"].Value = Phone.Text;cmd.Parameters.Add(new SqlParameter("@state", SqlDbType.Char));cmd.Parameters["@state"].Value = state.Text;
cmd.ExecuteNonQuery();
cn.Close();
Response.Redirect("main.aspx?st=Employee added successfully");
 

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cmd.Add(new SqlCeParameter("@IntColumn", SqlInt32.Null));
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cmd.Add(new SqlCeParameter("@IntColumn", DBNull.Value));

cmd.CommandText = "select count(*) from TableName where IntColumn is not @IntColumn";

cmd.Add(new SqlCeParameter("@IntColumn", SqlInt32.Null));

cmd.CommandText = "select count(*) from TableName where not IntColumn = @IntColumn";

cmd.Add(new SqlCeParameter("@IntColumn", DBNull.Value));


cmd.CommandText = "select count(*) from TableName where not IntColumn = @IntColumn";

cmd.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Int32));
cmd.Parameters["@IntColumn"].Value = SqlInt32.Null;
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cmd.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Int32));

cmd.Parameters["@IntColumn"].Value = SqlInt32.Null;

cmdGetNumRead.CommandText = "select count(*) from TableName where not IntColumn = @IntColumn";

cmd.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Int32));

cmd.Parameters["@IntColumn"].Value = DBNull.Value;

cmdGetNumRead.CommandText = "select count(*) from TableName where IntColumn is not @IntColumn";



cmd.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Int32));


cmd.Parameters["@IntColumn"].Value = DBNull.Value;


cmdGetNumRead.CommandText = "select count(*) from TableName where not IntColumn = @IntColumn";

cmd.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Variant));


cmd.Parameters["@IntColumn"].Value = SqlInt32.Null;
cmd.CommandText = "select count(*) from Meter where IntColumn is not @IntColumn";

cmd.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Variant));



cmd.Parameters["@IntColumn"].Value = SqlInt32.Null;

cmd.CommandText = "select count(*) from Meter where not IntColumn = @IntColumn";

md.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Variant));



cmd.Parameters["@IntColumn"].Value = DBNull.Value;

cmd.CommandText = "select count(*) from Meter where IntColumn is not @IntColumn";



cmd.Parameters.Add(new SqlCeParameter("@IntColumn", SqlDbType.Variant));




cmd.Parameters["@IntColumn"].Value = DBNull.Value;


cmd.CommandText = "select count(*) from Meter where not IntColumn = @IntColumn";

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C:Inetpubwwwrootusercontrol

and I have a simple index.html that tries to read from an sql db but throws

the error

System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.PermissionSet.Demand()
at System.Data.Common.DbConnectionOptions.DemandPermission()
at System.Data.SqlClient.SqlConnection.PermissionDemand()
at System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection,

etc etc

The action that failed was:
Demand
The type of the first permission that failed was:
System.Data.SqlClient.SqlClientPermission
The Zone of the assembly that failed was:
Trusted


I looked into the .net config utility but it says unrestricted and I tried adding it to the trusted internet zones in ie options security

I think that a windows form connecting to a sql database running in a webpage should be simple

to configure what am I missing?

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