Now, I am getting an error:
Violation of PRIMARY KEY constraint 'PK_customers_1'. Cannot insert duplicate key in object 'customers'. The statement has been terminated.
DATETIME AS PrimaryKey? Hi Dears! declare @dtpk smalldatetime select @dtpk=getdate() print @dtpk
in the above, i m using @dtpk as a primary key value in a table to keep a track of some events that are occuring with a difference of one second. the above method gives me value to store in the Primary key Filed (EventTime smalldatetime) in the form "Dec 1 2005 7:57PM" where my requirement is to save it in the form "Dec 1 2005 7:57:12.03PM" so as to make it unique for the primary key field(EventTime smalldatetime). how to get required datetime format with the help of above statements to store as primary key in EventTime field of type smalldatetime.
I've taken over a database where for many tables the postcode field (equivilent to the US Zip Code) is the obvious primary key. [Mapping postcodes to distict or various types of area for statistical analysis]. However the people who set up the database have continually used an auto generated number for the primary key.
There are never any duplicate postcodes in the various tables, so my question is what is the advantage of either using or not using the postcodes as primary keys.
I've a question. I've an old db here with no Primary keys nearly but a lot of identity's set, one for each table (nearly). I'm wondering, could something somehow go wrong with some sp's or anything if I make primary keys of these identities? Question why I'm asking is that we're takinging about doing replication but can't since there are primary keys lacking but we dont dare to change ém into primary keys if something might go wrong since we dont have knowledge about that.
I want to know if this primary key behavior is unique to Access or if it is THE WAY that all industry-standard primary keys work. Thus, I hope not to get too messed up on my SQL Server 2005 project--or any other SQL project.
In Access, I set up a table 'tbl_Gen_Admin_sto' to store general administration expenses. This is a budget. So, there can be at most one entry per budget_year / cost_center / account_number / month. If there are two or more entries, the data is messed up, something is wrong.
Therefore, I defined a muliple-field primary key for tbl_Gen_Admin_sto. If I make a programming mistake and enter data multiple times, the primary key feature will stop my program from entering the same data multiple times.
As I often do, I copy the data into another table, in this case tbl_Gen_Admin_tmp for manipulation in a form. (I.e., I connect a form to tbl_Gen_Admin_tmp.) The tmp version is a pivoted version of the sto table. So, in sto, I have one amount field for each month. In tmp, I have no month field, but do have one amount field for every month of the year (12 amount fields).
The transfer of data to tmp went fine. The user adds, changes, and deletes records in tmp through the form. When the user is done and wants to save the changes (and not discard changes), my program deletes the selected records from sto, then inserts the records from tmp.
But lo! Access was not accepting the new records because (error message) "key violations". The delete went fine. But the insert would not take.
I deleted the multiple-field primary key index in sto. Then I created a multiple-field regular index with no duplicates allowed. Now, sto accepts the insert.
I thought that when I deleted the records, the primary key field is gone--zzzzpft! But aparently Access is keeping track of all primary keys. Even though I deleted the record, for all eternity I will never ever be able to re-insert with the same primary key.
Here is where I need your help: Am I going to run into this same primary key behavior in SQL Server 2005? If so, is it because I have encountered the fundamental definition of primary key?
(I hope you don't beat me up too much for abusing primary keys.)
I want to copy data from 4 different database to 1 database... but if the destination database have already the same Primary Key the copying stops/terminated and not copying others that is not yet in the destination...
I don't have knowledge in T-SQL like IF...ELSE my database is SQL Server 2000 but i'm using SQL 2005 Express Management for the query...
What i'm doing is like this:
Use osa (Destination Database) Go
DELETE FROM tblFaculty (*I'll delete first the datas to avoid duplication)
INSERT INTO tblFaculty (FacultyID, LastName, FirstName, MiddleName, Rank, DeptCode) (SELECT FacultyID, LastName, FirstName, MiddleName, Rank, DeptCode FROM cislucena.dbo.tMasFaculty)
INSERT INTO tblFaculty (FacultyID, LastName, FirstName, MiddleName, Rank, DeptCode) (SELECT FacultyID, LastName, FirstName, MiddleName, Rank, DeptCode FROM amapn.dbo.tMasFaculty)
INSERT INTO tblFaculty (FacultyID, LastName, FirstName, MiddleName, Rank, DeptCode) (SELECT FacultyID, LastName, FirstName, MiddleName, Rank, DeptCode FROM abe.dbo.tMasFaculty)
INSERT INTO tblFaculty (FacultyID, LastName, FirstName, MiddleName, Rank, DeptCode) (SELECT FacultyID, LastName, FirstName, MiddleName, Rank, DeptCode FROM aclc.dbo.tMasFaculty)
My problem is if the facultyID (PrimaryKey) which i'm copying is already on the destination which is osa, the copying stops/terminated regardless whether there is more to copy. On the 4 source database, there might data that other database also has. That's why the copying is terminated. All i want to do is to check first each FacultyID if it is already on the destination before copying it to avoid error or duplication of Primary Key so it won't terminate the copying.
How is this possible sir? Anyone care to help? Thanks in advance! More Power!
I have a sql server database that she deleted a record with ID as 2873. I would like to try to add this record manually, but the primary key can't be edit. How can i add this record with the same ID as she deleted?
hey. I have a formview - inertitemtemplate. In here I have a button with CommandName="Insert". In code behind under FormView1.ItemInserting I want to be able to abort the inserting in some cases. Is this possible?
I'm using a SQLDataSource and trying to do two inserts into two different tables with one InsertCommand, but it's not working. Here's the code I'm trying to use. Do you see anything wrong with the syntax? I keep getting an error that says error near ',' but I can't figure out why. Thanks
I am submitting a telephone number into a table. I have 3 boxes for the telephone number. Telephone1,Telephone2,Telephone3. I need to insert the values of the 3 text boxes into a column called phone in my table. so like InsertCommand="INSERT INTO customer_mod (phone) Values (@Telephone_1) <asp:formparameter name="Telephone_1" formfield="Telephone1+Telephone2+Telephone3" /> I don't think that is gonna work, so can you please help me make that code work?
I need to add an 'InsertCommand' to my query via sqldatasource, but i cannot see this option, i only have the 'order', 'where' and 'advanced' option, could you please advice?
My problem is when trying to insert it's coming back that "Column 'textmenu' cannot be null" who is right for that fieldCode below: <script language="vb" runat="server"> sub Page_Load(s as Object, e as EventArgs) if ( Page.IsPostBack ) then Exit sub end if end sub private sub SubmitBtn_Click(s As Object, e As EventArgs) SqlDataSource1.Insert() end sub</script> <asp:sqldatasource id="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:test %>" ProviderName="<%$ ConnectionStrings:test.ProviderName %>" insertcommand="INSERT INTO test (textmenu) VALUES (@somevalue)"> <insertparameters> <asp:ControlParameter PropertyName="text" ControlID="CompanyNameBox" Name="somevalue" Type="String" /> </insertparameters> </asp:sqldatasource> <asp:textbox id="CompanyNameBox" runat="server" /> <asp:Button id="submitButton" Text="Envoyer" OnClick="SubmitBtn_Click" runat="server"/></asp:Content> So I change the constrain to accept "null" value then I check in the table database and there is a record but no valueSo I change the sql command to "INSERT INTO test (textmenu) VALUES ('test')" and it's working I have a record and the value "test" in the tableI don't know what I'm doing wrong up here with the @value. Can anyone help? Thanks
hi everyone i have a SqlDataSourceand i want execute two T-Sql (two InsertCommand)but not successHow did i do this? Thanks 1 Protected Sub SqlDataSource1_Inserted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) Handles SqlDataSource1.Inserted2 Dim SDSTemp As SqlDataSource = Nothing3 Try4 SDSTemp = New SqlDataSource(CnStr, "")5 SDSTemp.InsertCommandType = SqlDataSourceCommandType.Text6 SDSTemp.InsertCommand = "INSERT INTO Table1 (id,t1,t2) VALUES (@id,@t1,@t2)"7 Dim id As String = e.Command.Parameters("@id").Value.ToString8 SDSTemp.InsertParameters.Add("id", id)9 SDSTemp.InsertParameters.Add("t1", CType(FormView1.FindControl("TextBox1"), TextBox).Text)10 SDSTemp.InsertParameters.Add("t2", CType(FormView1.FindControl("TextBox2"), TextBox).Text)11 SDSTemp.Insert()12 13 SDSTemp.InsertCommand = "INSERT INTO Table2 (id) VALUES (@id)"14 15 SDSTemp.InsertParameters.Add("id", id)16 17 SDSTemp.Insert()18 Catch ex As Exception19 Message.Text = ex.Message.ToString20 End Try21 End Sub22
I have a process that inserts a new record using the InsertCommand of a SqlDataSource. As part of the process, I need to insert data the is available in a different SqlDataSource. I was trying this with the Insert Parameter:
I cannot get an Oracle sequence to work in an Sqldatasource InsertCommand:I've tried the following: InsertCommand='INSERT INTO "WHSTSTICKETS" ("WHSTS_ID", "CUSTOMER_ID") VALUES (whsts_id.nextval,:CUSTOMER_ID)And: InsertCommand='INSERT INTO "WHSTSTICKETS" ("WHSTS_ID", "CUSTOMER_ID") VALUES (:Testing,:CUSTOMER_ID)<asp:Parameter DefaultValue="whsts_id.nextval" Name="testing" />AndInsertCommand='INSERT INTO "WHSTSTICKETS" ("WHSTS_ID", "CUSTOMER_ID") VALUES (whsts_id.nextval,:CUSTOMER_ID) This is the classic error I get:ORA-01036: illegal variable name/numberI did review the asp.net forums before posting this. As well, I've looked through the VWD 2005 documentation and cannot find the answer to this question. Argg! Any help is appreciated. I've also worked to try and find out how to view the SQL that the Sqldatasource is generating, but I can't find the answer to this either.
Hi, I am trying to set the InsertCommand of a SqlDataSource prior to a new record being created in DetailsView. It has to be changed because certain fields are not being used in one scenerio and it is causing Null's to be written to the database. Here is what I have tried: I set the Insert command on page Load: protected void Page_Load(object sender, EventArgs e) { SqlDataSource3.InsertCommand = "Insert into table (name,realName,type,extraValue) VALUES (@name,@realName,@type,@extraValue)"; } But I don't want to insert the "extraValue if a certain condition is true so I want to change the insert command to SqlDataSource3.InsertCommand = "Insert into table (name,realName,type) VALUES (@name,@realName,@type) I tried to do that in the following: protected void DetailsView1_ItemInserted(Object sender, System.Web.UI.WebControls.DetailsViewInsertedEventArgs e) { SqlDataSource3.InsertCommand = "Insert into table (name,realName,type,extraValue) VALUES (@name,@realName,@type,@extraValue)"; if (e.Exception != null) { ErrorMessageLabel.Text = "An error occured while entering this record. Please verify you have entered data in the correct format."; e.ExceptionHandled = true; Response.Write(e.Exception); } GridView1.DataBind(); GridView1.DataBind(); } But it doesn't seem to change, Any Help would be appreciated, Doug
I am trying to use a sqldataadapter to log a record to a table with a stored procedure call. I am getting the following error: "System.NullReferenceException: Object reference not set to an instance of an object. at ContactUs.LogEmail() in c:inetpubwwwrootMDWelcomeContactUs.aspx.vb:line 55"Here is my code: Protected Sub LogEmail() 'Trace.IsEnabled = True Dim strConnect As String = ConfigurationManager.ConnectionStrings("LocalSqlServer").ToString Dim strCommandText As String = "dbo.EmailsLogged_Insert" Dim objConnect As New SqlConnection(strConnect) Try objConnect.Open() Dim objDataAdapter As New SqlDataAdapter(strCommandText, objConnect) objDataAdapter.InsertCommand.CommandText = strCommandText'this is line 55 in my source where error is thrown objDataAdapter.InsertCommand.CommandType = CommandType.StoredProcedure With objDataAdapter.InsertCommand.Parameters .Add("@emailaddress", SqlDbType.VarChar, 255).Value = UsersEmail.Text .Add("@subject", SqlDbType.VarChar, 255).Value = Subject.Text .Add("@company", SqlDbType.VarChar, 255).Value = Company.Text .Add("@phone", SqlDbType.VarChar, 255).Value = Phone.Text .Add("@emailbody", SqlDbType.VarChar, 255).Value = Body.Text
End With objDataAdapter.InsertCommand.ExecuteNonQuery() objConnect.Close() 'then close the connection Catch SQLError As SqlException Response.Write("<H1>SQL Exception:</H1>") Response.Write("<h2>" & SQLError.Procedure & "</h2><br />") Response.Write("<h2>" & SQLError.Message & "</h2><br />") Dim lineNum As Integer Dim errMsgArray() As String = Split(SQLError.StackTrace, vbCrLf, , Microsoft.VisualBasic.CompareMethod.Text) Do While lineNum <= errMsgArray.Length - 1 If Trim$(errMsgArray(lineNum)) <> "" Then Response.Write("<br>" & errMsgArray(lineNum)) End If lineNum = lineNum + 1 Loop Catch objError As Exception Dim oMsg As String 'display error details oMsg = "<b>* Error while accessing data</b>.<br />" _ & objError.Message & "<br />" & objError.Source
Trace.Write(oMsg) Response.Write(oMsg) Response.End() End Try End Sub I think the connection is OK (debugging shows that objConnect.State is open) but I am unclear why this is incorrect code here.
Ok, so I'm a JSP guy and thing it should be easy to replace "@color" with t_color after I initialized it to red by String t_color = "red";and then calling the insert SqlDataSource1.Insert();here is insert command: InsertCommand="INSERT INTO [favcolor] ([name], [color]) VALUES (@name, @color)" I've tried InsertCommand="INSERT INTO [favcolor] ([name], [color]) VALUES (@name, "+ t_color+")" Ive tried InsertCommand="INSERT INTO [favcolor] ([name], [color]) VALUES (@name, "<%$ t_color %>" )" Is there any easy way to do this? or Can I set it like @color = t_color? Thanks in advance for ANY help JSP turning ASP (Maybe)Dan
Dear; I got a problem executenonquery in asp.net 2.0. Below as my Code: 1 Dim conn As New SqlConnection(tmpconn)2 Dim cmd1 As New SqlCommand("SP_RPTFABTRANSFER_DYEING_PREV", conn)3 4 cmd1.CommandType = CommandType.StoredProcedure5 cmd1.CommandTimeout = 9006 cmd1.Parameters.Add(New SqlParameter("@aSTDATE", SqlDbType.VarChar, 10))7 cmd1.Parameters.Add(New SqlParameter("@aEDDATE", SqlDbType.VarChar, 10))8 cmd1.Parameters.Add(New SqlParameter("@aBUYERID", SqlDbType.VarChar, 10)) 9 cmd1.Parameters.Add(New SqlParameter("@aFACTORYID", SqlDbType.VarChar, 10))10 cmd1.Parameters.Add(New SqlParameter("@aFabGrpId", SqlDbType.VarChar, 10))11 cmd1.Parameters.Add(New SqlParameter("@aFABSUPPIDFROM", SqlDbType.VarChar, 10))12 cmd1.Parameters.Add(New SqlParameter("@aFABSUPPIDTO", SqlDbType.VarChar, 10))13 cmd1.Parameters.Add(New SqlParameter("@aUSERID", SqlDbType.VarChar, 20))14 cmd1.Parameters.Add(New SqlParameter("@aDelType", SqlDbType.VarChar, 20))15 16 cmd1.Parameters("@aSTDATE").Value = lstartdt17 cmd1.Parameters("@aEDDATE").Value = lenddt18 cmd1.Parameters("@aBUYERID").Value = Trim(dropBuyer.SelectedValue)19 cmd1.Parameters("@aFACTORYID").Value = Trim(dropFactory.SelectedValue)20 cmd1.Parameters("@aFabGrpId").Value = lFabGrp21 cmd1.Parameters("@aFABSUPPIDFROM").Value = fabFrom22 cmd1.Parameters("@aFABSUPPIDTO").Value = fabTo23 cmd1.Parameters("@aUSERID").Value = Session("UID").ToString24 cmd1.Parameters("@aDelType").Value = lDelType25 Try26 conn.Open()27 cmd1.ExecuteNonQuery()28 conn.Close()29 Catch ex As Exception30 lblerr.Visible = True31 lblerr.Text = ex.Message32 Finally33 conn.Close()34 End Try Web.Config<add name="oldtextileConnectionString" connectionString="Data Source=xx.xx.xx.xx;Initial Catalog=ERP;Integrated Security=TRUE;Connection Lifetime=0;Min Pool Size =0;Max Pool Size=1000;Pooling=true;" providerName="System.Data.SqlClient"/> This Code running on asp only 2min Execute time. But i try it on Asp.net 2.0 take a long time about 15min or request time out error. Could any one can give me some tips or hits? Help much appreciated. Thanks
I hope you would help me in this problem. I use the code below for executenonquery command for mdb DB.But I do not know the changes I should made when Using SQL2005.-------------Dim connectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0; " & _ "Data Source=C:ASPNET20dataNorthwind.mdb" Dim dbConnection As New OleDbConnection(connectionString) dbConnection.Open() Dim commandString As String = "INSERT INTO Employees(FirstName, LastName) " & _ "Values(@FirstName, @LastName)" Dim dbCommand As New OleDbCommand(commandString, dbConnection) Dim firstNameParam As New OleDbParameter("@FirstName", OleDbType.VarChar, 10) firstNameParam.Value = txtFirstName.Text dbCommand.Parameters.Add(firstNameParam) Dim lastNameParam As New OleDbParameter("@LastName", OleDbType.VarChar, 20) LastNameParam.Value = txtLastName.Text dbCommand.Parameters.Add(LastNameParam) dbCommand.ExecuteNonQuery() dbConnection.Close()--------
Hi, I am trying to execute a nonquery as follows (look for bold):Dim connStringSQL As New SqlConnection("Data Source=...***...Trusted_Connection=False")'// Create the new OLEDB connection to Indexing ServiceDim connInd As New System.Data.OleDb.OleDbConnection(connStringInd)Dim commandInd As New System.Data.OleDb.OleDbDataAdapter(strQueryCombined, connInd)Dim commandSQL As New SqlCommand("GetAssetList2", connStringSQL)commandSQL.CommandType = Data.CommandType.StoredProcedureDim resultDS As New Data.DataSet()Dim resultDA As New SqlDataAdapter()'// Fill the dataset with valuescommandInd.Fill(resultDS)'// Get the XML values of the dataset to send to SQL server and run a new query...'// Return the number of resultsresultCount.Text = source.Count.ToStringresults.DataSource = sourceresults.DataBind()'// Record the searchcommandSQL = New SqlCommand("RecordSearch", connStringSQL)commandSQL.Parameters.Clear()commandSQL.Parameters.Add("@userName", Data.SqlDbType.VarChar, 50).Value = authUser.Text()commandSQL.Parameters.Add("@createdDateTime", Data.SqlDbType.DateTime).Value = DateTime.Now()commandSQL.Parameters.Add("@numRows", Data.SqlDbType.Int, 1000).Value = resultCount.TextcommandSQL.Parameters.Add("@searchString", Data.SqlDbType.VarChar, 1000).Value = searchText.TextconnStringSQL.Open()commandSQL.ExecuteNonQuery()connStringSQL.Close() The stored procedure looks like this:Use GTGAssetsDROP PROC dbo.RecordSearch;--New ProcedureGOCREATE PROC dbo.RecordSearch(@userName varchar(50),@createdDateTime DateTime,@numRows varchar(1000),@searchString varchar(1000))ASBEGINSET NOCOUNT ONINSERT INTO SearchLog (SearchString, CreatedByUser, CreatedDTTM, RowsReturned) VALUES (@searchString, @userName, @createdDateTime, @numRows)ENDGOAny ideas as to why this error is appearing? Incorrect syntax near 'RecordSearch'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near 'RecordSearch'.Source Error: Line 169: commandSQL.Parameters.Add("@searchString", Data.SqlDbType.VarChar, 1000).Value = searchText.Text Line 170: connStringSQL.Open() Line 171: commandSQL.ExecuteNonQuery() Line 172: connStringSQL.Close() Line 173: End IfMany thanks!James
When I try to insert a record with the ExecuteNonQuery command, I get the following error information. Any clues why? Thanks. SSqlException was unhandled by user code...Message="Incorrect syntax near [output of one of my field names]."...[Item detail:] In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user. My code: Private objCmd As SqlCommandPrivate strConn As New SqlConnection(ConfigurationManager.AppSettings("conn"))...objCmd = New SqlCommand("INSERT INTO tblUsers (UserID,FName,LName,PrimLang1,Ctry,Phone)" & _"VALUES('" & strUser & "','" & strFName.Text & "','" & strLName.Text & "', '" & strLang.Text & "', '" & strCtry.Text & "', '" & strPhone.Text & "'" _, strConn)strConn.Open()objCmd.ExecuteNonQuery()
Hi,I am developing a small application where in I need to take a few data from the user and put it on the DB. I have stored procs for the same. I am getting an error when I execute the ExecuteNonQuery() command. the error is as follows: System.InvalidCastException: Object must implement IConvertible. at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Intranet_New.leaveForm.btnSubmit_Click(Object sender, EventArgs e) in c:inetpubwwwrootintranet_newleaveform.aspx.cs:line 138 Snippet of code: try { con = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["SqlCon"]); cmd = new SqlCommand(); cmd.Connection = con;
( @empid as char(20), @empName as nvarchar(50), @totalLeave as decimal(9) = 12, @LeaveFrom as datetime, @LeaveTo as datetime, @TotalDays as bigint, @TypeOfLeave as nvarchar(50), @ReasonOfLeave as nvarchar(1000), @RemainigLeave as decimal(9) ) /* ( @parameter1 datatype = default value, @parameter2 datatype OUTPUT ) */ AS /* SET NOCOUNT ON */
I have created a stored procedure that takes several parameters and ultimately does an INSERT on two tables. The sp returns with an integer indicating which is positive if one or more rows were added. If I execute the SP by hand using the SQL Server Management Studio Express I get the proper results, the records are added to both tables and the return values are proper. One is an output parameter indicating the Identity value of the main record, the return value simply >0 if OK. However, when I use C#, build my connection, command and its associated parameters making sure they match the SP then I get a malfunction. The problem is that when I call ExecuteNonQuery the integer value it returns is -1 even though calling it from Mgmt. Studio gives a >0 result. Even though it returns -1 I can confirm that the records were added to BOTH tables and that the output parameter (The identity) given to me is also correct. However the return value is always -1. I have no idea what is going wrong, Since I have SQL Express 2005 I do cannot do profiling :(. I really don't see why this goes wrong and I think using ExecuteScalar is not the best choice for this type of action.
HI I am using ExecuteNonQuery to run an UPDATE statement but i keep getting the following error message: "ExecuteNonQuery: Connection property has not been initialized. " this is my code can anyone see what is wrong?
DBCommand.CommandType = CommandType.TextDBCommand.CommandText = queryCourse DBConnection.Open() ExecuteNonQuery = DBCommand.ExecuteNonQuery() DBCommand.ExecuteNonQuery() DBConnection.Close() help would be appreciated.
I have a DataAccess that has "cmd.ExecuteNonQuery" and another file SqlTableProfileProvider for a SandBox project(from ASP.NET) for a Custom TableProfileProvider. That also has a cmd.ExecuteNonQuery even thou these are 2 different files i get an error after debug.
Question is are they conflicting ? if so how can i fix this.
Code Snippets for both provided below the 2nd cmd.ExecuteNonQuery that is producing the Error is Commented in Orange...Thxs for the help Rattlerr
Incorrect syntax near ','.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Incorrect syntax near ','.
Source Error:
Line 454: cmd.CommandType = CommandType.Text; Line 455: Line 456: cmd.ExecuteNonQuery(); Line 457: Line 458: // Need to close reader before we try to update
I have an interesting error that shows up on Windows Mobile 6.0 devices but does not appear to affect Windows Mobile 5.0 devices. The application runs in .NET CF 2.0 on SQL CE 3.0 using Merge Replication. When the application starts, there is an ExecuteNonQuery prior to calling the first synchronization. It appears that once the application has replicated that you can no longer create a connection to the database and run an ExecuteNonQuery successfully. If you have already created the SqlCeConnection and just open and close it as needed that you are able to run ExecuteNonQuery commands.
In Windows Monile 6.0; however, I eventually run out of memory, like there is a leak someplace. Does anyone have any ideas for how you would actually be able to dispose of the SqlCeConnection and recreate it each time? Does calling .Close() release all the native resources on a SqlCeConnection? I am trying out one more modification, I realized the SqlCeReplication object was not being disposed of and I'm guessing this probably also uses native resources; can anyone confirm this would also potentially cause a problem?
The application works but it is aggravating to have to softboot once in awhile to recover the memory, I'd like to move beyond it. Any ideas would be great!
System.Data.SqlClient.SqlException: Line 1: Incorrect syntax near 'VSReferenceNumber'. at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at ASP.workingdatagrid2_aspx.myDataGrid_Update(Object Sender, DataGridCommandEventArgs e) in C:Inetpubwwwrootuapworkingdatagrid2.aspx:line 64
Here's the code::
<script runat="server">
//public string ConnString = "server=atw_data01;database=UAP;uid=atw_cheryl.theobald;pwd=nudibranch;"; public string ConnString = "Server=(local); user id=sa;password=;initial catalog = UAP;"; void BindData() { //-- Using the Try statement, we attempt to connect to our //-- database, execute a SqlDataAdapter to store our data, //-- populate a dataset and then bind that dataset //-- to our DataGrid. try { SqlConnection SqlConn = new SqlConnection(ConnString); string SqlString = "SELECT [uapID], [DealershipName], [AutoExchangeClientID], [VSReferenceNumber] FROM uapForm"; SqlDataAdapter SqlComm = new SqlDataAdapter(SqlString, SqlConn); DataSet customerData = new DataSet(); SqlComm.Fill(customerData, "uapForm");
//-- If we are not able to connect, display a friendly error catch (Exception e) { ErrorLabel.Text = "Not able to connect to database. See description below: <P>"; ErrorLabel.Text += e.ToString(); }
}
void myDataGrid_Update (object Sender, DataGridCommandEventArgs e) { //-- Take the data from each textbox in our editable item //-- and assign that text to a string variable string uapID = Convert.ToString(e.Item.Cells[0].Text); string DealershipName = ((TextBox) e.Item.Cells[1].Controls[0]).Text; string AutoExchangeClientID = ((TextBox) e.Item.Cells[2].Controls[0]).Text; string VSReferenceNumber = ((TextBox) e.Item.Cells[3].Controls[0]).Text;
//-- Again, using the Try statement, attempt to connect to our database //-- and make an update with the data from our datagrid SqlConnection SqlConn = new SqlConnection(ConnString); try { SqlConn.Open(); string SqlString = "UPDATE uapForm "; SqlString += "SET DealershipName = '" + DealershipName.Replace("'", "''") + "', "; SqlString += "AutoExchangeClientID = '" + AutoExchangeClientID.Replace("'", "''") + "' "; SqlString += "VSReferenceNumber = '" + VSReferenceNumber.Replace("'", "''") + "', "; SqlString += " WHERE uapID = '" + uapID + "'"; SqlCommand SqlComm = new SqlCommand(SqlString, SqlConn); SqlComm.ExecuteNonQuery(); SqlConn.Close(); SqlComm.Dispose(); SqlConn.Dispose(); }
//-- If for some reason we cannot connect, display a friendly error. catch (Exception exc) { ErrorLabel.Text = "Not able to connect to database. <br>Please See description below:<P> <P>"; ErrorLabel.Text += exc.ToString(); }
void myDataGrid_Edit(object Sender, DataGridCommandEventArgs e) { //-- Set the edit focus to the item that was selected myDataGrid.EditItemIndex = (int) e.Item.ItemIndex; //-- Rebind our datagrid BindData(); }
void Page_Load (object Sender, EventArgs e) { //-- If the page is not posting back, bind our datagrid if (!Page.IsPostBack) { BindData(); } }
