I'm developing a web app using VS2005. I have a webpage with panel containing a gridview populated by a SQLdatasource. The SQLdatasource in turn is populated by a stored procedure that can take up to 5 parameters. The user types in up to 5 separate words (searchterms) in a text box which are then parsed and passed to the stored proc in the datasource which performs a fulltext search. The gridview then becomes visible. My problem is that unless the user types in 5 searchterms (no less), the gridview returns zero rows. 5 searchterms returns the proper results. Somehow, I need to be able to pass in null or empty values for unneeded parameters.
I've tested the stored procedure in Query Analyzer and from within the SQLdatasource configuration (using Test Query) using 0 up to 5 parameters and it works fine, so that's not my problem. Here's the code that runs after the user types in their search term(s) and presses a button:Public Sub FTSearch_Command(ByVal sender As Object, ByVal e As CommandEventArgs) Handles btnFullText.Command
Public Shared Sub My_UpdateCountsManaged( ByRef paramInOut As Integer)
'here I perform update statement using "paramInOut" passed form calling code
.......
'then I return value to the calling code
paramInOut = 555
End Sub
End Class
Calling code specifies a parameter like this:
Code Snippet
Dim param as Sqlparameter = New SqlParameter("@paramInOut", SqlDbType.Int)
param.Direction = ParameterDirection.InputOutput
param.Value = 999
cmd.Parameters.Add(param)
When I execute the code, it surely gets back "555" from SP, the problem is that SP never gets "999" from calling code despite ParamDirection is InputOutput. It always receives 0. I am afraid I don't understand something fundamental ?
How to pass a null to SelectParameters in SqlDataSource? The type of "CreateDate" is DateTime, the following code can be run correctly! SqlDataSource1.SelectParameters["CreateDate"].ConvertEmptyStringToNull = true;SqlDataSource1.SelectParameters["CreateDate"].DefaultValue = "2006-11-12"; now I hope to pass null value to the Parameter "CreateDate", but the following 3 section codes don't work! SqlDataSource1.SelectParameters["CreateDate"].ConvertEmptyStringToNull = true;SqlDataSource1.SelectParameters["CreateDate"].DefaultValue = string.Empty; or SqlDataSource1.SelectParameters["CreateDate"].ConvertEmptyStringToNull = true;SqlDataSource1.SelectParameters["CreateDate"].DefaultValue =null; or SqlDataSource1.SelectParameters["CreateDate"].ConvertEmptyStringToNull = true;SqlDataSource1.SelectParameters["CreateDate"].DefaultValue = "";
Either method is in the “ASPX� file This is a DataSource for a “DetailsView� which has on top of “DeleteCommand� an “InsertCommand� a “SelectCommand� and an “UpdateCommand�. It is related to a GridView and the “@DonationRecID� comes from this GridView. Method 1. Using an SQL Query – this works fine <asp:SqlDataSource ID="donationDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:FUND %>" DeleteCommand="DELETE FROM [Donations] WHERE [DonationRecID] = @DonationRecID"> Method 2. – using a stored procedure – this bombs because I have no clue as to how to pass “@DonationRecID� to the stored procedure "Donations_Delete". <asp:SqlDataSource ID="donationDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:FUND %>" DeleteCommand="Donations_Delete" DeleteCommandType="StoredProcedure"> How do I pass “@DonationRecID� to the "Donations_Delete" stored procedure? Does anyone have an example of how I can do this in the “ASPX.CS� file instead.
sSQL = "spBPT_Fuel_Set_Status_Approved" cmdDailyPrices.CommandText = sSQL cmdDailyPrices.Parameters.Add("@user", "Philippe") cmdDailyPrices.Parameters.Add("@verbose", "0") cmdDailyPrices.Parameters.Add("@Day_1_add", rowBand1.Cells(DayParameters.AddFactor).Value) cmdDailyPrices.Parameters.Add("@Day_1_multiply", rowBand1.Cells(DayParameters.MultiplyFactor).Value) cmdDailyPrices.Parameters.Add("@Day_2_add", "NULL") cmdDailyPrices.Parameters.Add("@Day_2_multiply", "NULL") For @Day_2_add and @Day_2_multiply parameters I want to pass the value as NULL not string "NULL" could you please let me know how to do this?
I am using SQL Reporting Services to generate reports. I am calling the stored procedure from the reporting services. The procedure has parameters which take null. I am stuck with passing null to the parameter from the reporting services. I shows the error and the report is not generated. Could you please suggest the way to pass null to the stored procedure parameter from the SQL Reporting Services.
I'm in sql server mgmt 2005 and i highlighted a stored proc and clicked on "execute". I need to pass a null value in as the first param value to test this stored proc. what is the syntax, is below correct?
Hi, I'm reasonably new to ASP.NET 2.0 I'm in my wizard_FinishButtonClick event, and from here, I want to take data from the form and some session variables and put it into my database via a stored procedure. I also want the stored procedure to return an output value. I do not need to perform a select or a delete. For the life of me, I can't find a single example online or in my reference books that tells me how to accomplish this task using a SqlDataSource control. I can find lots of examples on sqldatasources that have a select statements (I don't need one) and use insert and update sql statements instead of stored procedures (I use stored procedures). I desperately need the syntax to: a) create the SqlDataSource with the appropriate syntax for calling a stored procedure to update and/or insert (again, this design side of VS2005 won't let me configure this datasource without including a select statement...which I don't need). b) syntax on how to create the parameters that will be sent to the stored procedure for this sqldatasource (including output parameters). c) syntax on how to set the values for these parameters (again...coming from form controls and session variables) d) syntax on how to execute, in the code-behind, the stored procedure via the sqldatasource. If anybody has sample code or a link or two, I would be most appreciative. Thank you in advance for any help!
I have a stored proc that I'd like to return an output param from. I'm using a SQLDataSource and invoking the Update method which calls the sproc.The proc looks like this currently: ALTER proc [dbo].[k_sp_Load_IMIS_to_POP_x]@vcOutputMsg varchar(255) OUTPUT AS SET NOCOUNT ON ; select @vcOutputMsg = 'asdf'
The code behind looks like this:protected void SqlDataSource1_Updated(object sender, SqlDataSourceStatusEventArgs e) { //handle error on return string returnmessage = (string)e.Command.Parameters["@vcOutputMsg"].Value; }
On the page source side, the params are defined declaratively: <UpdateParameters> <asp:Parameter Direction="ReturnValue" Name="RETURN_VALUE" Type="Int32" /> <asp:Parameter Direction="InputOutput" Name="vcOutputMsg" Type="String" /> </UpdateParameters>
When I run it, the code behind throws the following exception - "Unable to cast object of type 'System.DBNull' to type 'System.String'" PLEASE HELP! What am I doing wrong? Is there a better way to get output from a stored proc?
1) I have a report with many parameters that I want users to be able to pick from. Allow them to pick 1, many or all to build their report dynamically. I'm all set on the TSQL side, but on the Reporting Services side I have to allow each parameter to be null with a default of NULL. In by doing this, the report will auto run, which I do not want to happen. The only resolution I've found thus far was by adding a parameter that does nothing, with a NULL default value. Yet It sticks out like a sore thumb on the report and I want to get rid of it. If I check in "Hidden" in the parameter options, my report errors out stating that the parameter requires a value.
2) Is it possible to have a parameter that has available values from a dataset have a NULL checkbox like those of parameters that do not have available values?
3) Is it possible to add back/forward buttons inside of a report instead of just at the report header by default?
I'm trying to pass my SqlDataSource a parameter that is defined in the code-behind file for the same page. I've tried the method below but it does not work. Is there a better way?SubmitForm.ascx page: <asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ connection string...... %>" SelectCommand="sp_CourseMaterialShipment_GetCourses" SelectCommandType="StoredProcedure"> <SelectParameters> <asp:Parameter DefaultValue="<% ProgramID %>" Name="programID" Type="Int32" /> </SelectParameters></asp:SqlDataSource> SubmitForm.ascx.vb page:Private ProgramID as string = "25"Public ReadOnly Property ProgramID() As String Get Return _ProgramID End GetEnd Property ThanksJason
Is there no way to pass identity info back through SqlDataSource? You can only do that with ADO.NET code? In other words, if I want to run a complex INSERT statement to a table that uses Identity, I can't take that key value back through something like SCOPE_IDENTITY() and use it? I know how to do this with ADO code, but I can't figure out how to do it purely with SqlDataSource. I was hoping to do this without having to write a new Insert statement -- just using the one that's already in the SqlDataSource control. But there doesn't seem to be any facility for Identity in there. I tried embedding a separate select statement after the insert statement and a semi-colon, but that didn't seem to do anything. Thanks!
how do i pass the paramenters and storedprocedure to dataview from code-behind? the below code have sqldatasource control but i want to pass through code-behind everything...
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" EmptyDataText="There are no data records to display." DataKeyNames="NewsId"> <Columns> <asp:BoundField DataField="NewsId" HeaderText="NewsId" InsertVisible="False" ReadOnly="True" SortExpression="NewsId" /> <asp:BoundField DataField="PostDate" HeaderText="PostDate" SortExpression="PostDate" /> <asp:BoundField DataField="PostedBy" HeaderText="PostedBy" SortExpression="PostedBy" /> <asp:BoundField DataField="PostedByName" HeaderText="PostedByName" SortExpression="PostedByName" /> <asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" /> <asp:BoundField DataField="Body" HeaderText="Body" SortExpression="Body" /> <asp:BoundField DataField="LastUpdated" HeaderText="LastUpdated" SortExpression="LastUpdated" /> <asp:CheckBoxField DataField="IsVisible" HeaderText="IsVisible" SortExpression="IsVisible" /> </Columns> </asp:GridView> i have storedprocdure which accepts 4 parameters 3 paramenters which user will supply and 1 parameter will be supplied from code-behindwhat i mean by that is:the 4 parameters storedprocedure accepts is:empid, start_date, end_date (user will supply those 3 parameters)internal_id - which internally pass along with other 3 parmeterssomething like this:internal_id, empid, start_date, end_dateany thoughts?thanks.
UpdateCommand="UPDATE PsnQualifications SET quantity=@quantity WHERE rowstatus=1 and qualId=@original_qualId"
DeleteCommand="UPDATE PsnQualifications SET rowStatus=0, lastUpdateOn=getdate(), lastUpdateBy=@createdBy WHERE rowstatus=1 and qualId=@original_qualId"
i have a sqldatasource on my asp.net page -- select * from table where id = @id i want to set the @id in the backend and set the result to textbox1.text how do i do this?
I have a table with a foreign key field. I need to retrieve all the records where the foreign key matches any of a set. In plain ol' SQL this is accomplished with the IN(a,b,c) statement but I can't get that to work in a stored procedure.
How would I do this? I can imagine that I could parse the input string and create a temporary table and use that to do a join but that seems rather convoluted.
Any tips highly appreciated! If I'm not being clear I'll gladly post more details.
I am working through a tutorial and have stumbled into something that does not quite make sense to me. I was wondering if someone could help me understand this.
I have created this SP, this all makes sense to me due to the assignment of the artistname column value to the @artistname variable. In other words what is on the right of the equal sign is assigned to what is on the left.
create procedure ShowPopStyle @style varchar(30), @artistname varchar(30) output as select @artistname = artistname from artists where style = @style go
Now when you execute this SP, what does not makes sense to me is if I need to declare a variable to hold the output, which I presume is null, shouldn't the @returnname be on the left side of the equal sign instead of the right?
declare @returnname varchar(30) -- variable for the output from the procedure exec showpopstyle 'Pop', @artistname = @returnname output print @returnname
This is my SProc: CREATE PROCEDURE dbo.ap_Select_ModelRequests_RequestDateTime /* Input or Output Parameters *//* Note that if you declare a parameter for OUTPUT, it can still be used to accept values. *//* as is this procedure will very well expect a value for @numberRows */@selectDate datetime ,@selectCountry int ,@numberRows int OUTPUT AS SELECT DISTINCT configname FROM ModelRequests JOIN CC_host.dbo.usr_smc As t2 ON t2.user_id = ModelRequests.username JOIN Countries ON Countries.Country_Short = t2.country WHERE RequestDateTime >= @selectDate and RequestDateTime < dateadd(dd,1, @selectDate) AND configname <> '' AND interfacename LIKE '%DOWNLOAD%' AND result = 0 AND Country_ID = @selectCountry ORDER BY configname /* @@ROWCOUNT returns the number of rows that are affected by the last statement. *//* Return a scalar value of the number of rows using an output parameter. */SELECT @numberRows = @@RowCount GO And This is my code. I know there will be 100's of records that are selected in the SProc, but when trying to use the Output Parameter on my label it still says -1Protected Sub BtnGetModels_Click(ByVal sender As Object, ByVal e As System.EventArgs) Dim dateEntered As String = TxtDate.TextDim selectCountry As String = CountryList.SelectedValue Dim con As New SqlClient.SqlConnection con.ConnectionString = "Data Source=10.10;Initial Catalog=xx;Persist Security Info=True;User ID=xx;Password=xx"Dim myCommand As New SqlClient.SqlCommand myCommand.CommandText = "ap_Select_ModelRequests_RequestDateTime" myCommand.CommandType = CommandType.StoredProceduremyCommand.Parameters.AddWithValue("@selectDate", dateEntered) myCommand.Parameters.AddWithValue("@selectCountry", CInt(selectCountry))Dim myParam As New SqlParameter("@numberRows", SqlDbType.Int) myParam.Direction = ParameterDirection.Output myCommand.Parameters.Add(myParam) myCommand.Connection = con con.Open()Dim reader As SqlDataReader = myCommand.ExecuteReader()Dim rowCount As Integer = reader.RecordsAffected numberParts.Text = rowCount.ToString con.Close() End Sub
I've got a stored proc to insert a record and return the id of the record inserted in an output param.How do I access this value in my code after the proc is executed? param = comm.CreateParameter();param.ParameterName = "@MemberID";param.Direction = ParameterDirection.Output;param.DbType = DbType.Int32;comm.Parameters.Add(param); try{ rowsAffected = GenericDataAccess.ExecuteNonQuery(comm);}catch { rowsAffected = -1;}
here's my code:my $sth = $dbhSQL->prepare('{call proc(?,?,?)}');$sth->bind_param(1,"asd");$sth->bind_param(2,"klm");$sth->bind_param_inout(3,$no_go, 1000);$sth->execute;print "no go = $no_go";while(my @row=$sth->fetchrow_array){print "@row";}$sth->finish;Here's my stored procedure:CREATE PROCEDURE proc@id varchar(50),@iyt varchar(20),@no_go int OUTPUTASSET NOCOUNT ONDECLARE @id_err int,@ans_glue_err intBEGIN TRANSACTIONSELECT user_id FROM myTableWHERE user_id=@id AND iyt=@iytSET @id_err = @@ERRORIF @@ROWCOUNT <> 0BEGINSELECT date,date_mod FROM ans_glueWHERE user_id=@idSET @no_go = 0SET @ans_glue_err=@@ERRORENDELSEBEGINSET @no_go = 1ENDIF @id_err = 0 AND @ans_glue_err = 0BEGINCOMMIT TRANSACTIONENDELSEBEGINROLLBACK TRANSACTIONENDthe procedure runs perfectly in Cold Fusion, returning both recordsetsand output param, but in perl, it won't print the output param and Idon't know how to access the second recordsetHELP!
set ANSI_NULLS ON set QUOTED_IDENTIFIER ON SET NOCOUNT ON
GO -- ============================================= ALTER PROCEDURE [dbo].[spPK] -- Add the parameters for the stored procedure here @varNSC varchar(4), @varNC varchar(2), @varIIN varchar(7), @varIMCDMC varchar(8), @varOut as int output AS Declare @varPK int set @varPK = 0 BEGIN
--This checks Method 1 --NSC = @varNSC --NC = @varNC --IIN = @varIIN begin if exists (select Item_id From Item Where NSC = @varNSC and NC = @varNC and IIN = @varIIN) set @varPK = (select Item_id From Item Where NSC = @varNSC and NC = @varNC and IIN = @varIIN) set @varOut = @varPK if @varPK <> 0 Return end
[There are some more methods here]
Return
END
How do I get at the output value?
I have tried using derived column and ole db command but can't seem to grasp how to pass the value to the derived column. I can get oledb command to run using 'exec dbo.spPK ?, ?, ?, ?, ? output' but don't know what to do from here.
How can I pass NULL to a parameter, if now entry is made in the textbox? Dim KeywordParam As New SqlParameter("@Keyword", Me.KeyWordText.Text) MyCommand.Parameters.Add(KeywordParam)
hi i am using formview i have a date field textbox which selects date from ajax calender now my point is when i make this field blank at that time in my gridview rather then displaying the date field blank it shows me the value 1 Jan 1900 this is the default date of sqlserver which it returns when we leave the field '' now when i pass the value null it automatically takes it as '' in my class file my function is public object checkdate(TextBox txtdate) { if (txtdate.Text == "") { return null; } else { return txtdate.Text; } } in my cs file i wrote object checkemptydate = obj.checkdate(nextvaccinationdate); string values = patientID + ",'" + vaccination + "',convert(varchar,'" + vaccinationdate + "',106)," + checkemptydate + ",'" + remarks + "'"; note that i even tried this too string values = patientID + ",'" + vaccination + "',convert(varchar,'" + vaccinationdate + "',106)," + null + ",'" + remarks + "'"; and string values = patientID + ",'" + vaccination + "',convert(varchar,'" + vaccinationdate + "',106),convert(varchar,'" + checkemptydate + "',106),'" + remarks + "'"; but nothing is working it passes '' not null how could i solve this problem? shweta
I would like to know if it's possible to pass NULL value to the database. I want to update a column, a parameter has to be passed in to do so, i.e @value = '123'. but if there were no parameter value, i.e @value = '', I want to the value in the database to be NULL. I don't want to pass (''). can this be achieved?
The following t-sql 2012 works fine in sql management studio. However when I place it in a .net 2010 web form application, I am told the sql does not work when the parameter values are null. Thus can you tell me what I can change in the sql below that will accept null as 3 possible input values?
I have a Nullable columns. I want the value to be zero if NULL is passed.
1) having a view for every such table, 2) using ISNULL for needed columns in that view 3) using those view for inserts instead of using tables directly.
This way i can reduce the number of places to use ISNULL in all my SPs.I dont want to make it to NOT NULL, as my application impact will be high. And Default constraint does not work here.
