I am trying to create a method which will access the database via a SqlDataAdapter. I have passed two parameters month and year. When I run it, I get the error "Object reference not set to an instance of an object". I have posted the complete code below. Please take a look..
[Code]....
I want to passed stored procedure parameters from crystal report to pass those parameter dynamically by arraylist because user will pass parameters by using data driven web pages (can be different reports with different parameter). how can i pass through parameter array lists to crystal report setreportparameters fields.
My code;
public void ConfigureReports(ArrayList valuesLists,ArrayList parameterLists) {
rptReportViewer.RefreshReport();
DataBaseHelper.myReportConnectionInfo = new ConnectionInfo();
DataBaseHelper.defineConnection = null;
[Code] ...
In my stored procedure I have declared some parameters as NULL values(Optional Parameters).
In my C#.NET code I didn't use the parameters to pass values to Stored Procedure's NULL
Parameters. So I am getting Exception.
I don't want to pass parameters from my code.Because I have declared 30 parameters in my
Stored Procedure as NULL values.
Is there any other way to execute Stored Procedure from Front End without passing values to
Optional Parameters in SQL stored procedure?
I have a grid view that populates and displays data at btn click event from the following sql statement in one of the SP:
SELECT
reg_code, pc_serial, act_code
FROM user_reg
WHERE reg_code=@reg_code
I want to pass parameters to the other Stored procedure when the edit button is clicked in order to update the 2 columns in the specific row at the time. I now how to pass parameters in a regular btn click event or function, but in the case of edit btn in grid view I don't know how to capture data from specific row and then pass it to the SP. Here is Stored Procedure to update the columns (every user always has the same reg code, but may have more than one serial number and activation code, I want to let the user update serial number and then based on the serial number generate new activation code in the SP.):
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I'm using VB.net 2.0 with a SQL server (2005) backend db. I've got a very odd problem. I'm trying to use a stored procedure with a parameter to delete a record from a table. I've tested the stored procedure by running it directly from visual studio and it works fine, but when running it through my application nothing happens. There's no error and it appears to have worked but the record is not deleted.
I've checked permissions on the backend db and giving the network ASPNet account the db owner role has no effect either.
Here's the code, there are 3 layers - the webform code, then the business logic class, then the dataconnection class.
'firstly the original code that is run from the webform when the user selects to delete the record
Partial Public Class NewPerson
Inherits System.Web.UI.Page
Private newConn As New DBConnection
Private currentNewRequest As New NewRequest(newConn)
Protected Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Dim requestID As Integer = CInt(Me.lblRecordID.Text)
Me.currentNewRequest.newRequestID = requestID
Me.newConn.openConnection()
Me.currentNewRequest.DeleteRecord()
Me.newConn.closeConnection()
End Sub
End Class
'the business logic class that is called to set the parameters etc. The newRequestID integer is set at 19, I have checked this out.
Public Class NewRequest
Private dBConnection As DBConnection
Public newRequestID As Integer
Public Sub New(ByVal dBConnection As DBConnection)
'check params
If dBConnection Is Nothing Then
Throw New ArgumentNullException("dBConnection")
End If
Me.dBConnection = dBConnection
End Sub
Public Sub DeleteRecord()
'This sub deletes a request
With Me.dBConnection
.AddParameter("@newrequestID", SqlDbType.Int, 0, newRequestID)
.ExecNonQuerySP("sp_DeleteNewRequest")
End With
End Sub
End Class
'then the data connection class
Imports System.Data.SqlClient
Public Class DBConnection
Private _ParamList As SqlParameterCollection
Private _MyComm As New SqlCommand
Private _ConnectionStr As String = ConfigurationManager.ConnectionStrings("Conn").ToString
'shared connection
Dim conn As New SqlConnection(_ConnectionStr)
'the parameter is added
Public Sub AddParameter(ByVal ParamName As String, ByVal paramType As Data.SqlDbType, ByVal Paramlength As Int16, ByVal ParamValue As String)
MyComm.Parameters.Add(ParamName, paramType, Paramlength)
If ParamValue = Nothing Or ParamValue = "00:00:00" Or ParamValue = "" Then
_MyComm.Parameters(ParamName).Value = DBNull.Value
Else
_MyComm.Parameters(ParamName).Value = ParamValue
End If
End Sub
'and this is where the stored procedure is supposed to run, no errors are generated
Public Sub ExecNonQuerySP(ByVal SPName As String)
Dim MyAdapter As New SqlDataAdapter(_MyComm)
_MyComm.CommandType = CommandType.StoredProcedure
_MyComm.CommandText = SPName
_MyComm.Connection = conn
If Not _MyTrans Is Nothing Then
_MyComm.Transaction = _MyTrans
End If
Try
_MyComm.ExecuteNonQuery()
Catch ex As Exception
Dim errorMessage As String = ex.GetType.ToString & " " & ex.Message.ToString
System.Web.HttpContext.Current.Session("DBError") = "True"
System.Web.HttpContext.Current.Session("DBEx") = errorMessage
Throw ex
Finally
End Try
End Sub
Public Sub openConnection()
conn.Open()
End Sub
Public Sub closeConnection()
conn.Close()
End Sub
End Class
The stored procedure looks like this:
ALTER PROCEDURE sp_DeleteNewRequest
/*this sp is used to delete a new account request record*/
@newrequestID int
AS
DELETE FROM NewAccountRequest WHERE
NewRequestID = @newrequestID
i have created this function with a parameter offset and i want to access the database using stored procedure but the code and stored procedure i have written below is not working...what is the right way to do it??
public bool isoffsetexist(int offset)
{
conn.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "sp_offset1";
SqlDataReader dr = cmd.ExecuteReader();
int i = 0;
while (dr.Read())
{
i++;
}
if (i == 1)
{
conn.Close();
return true;
}
else
{
conn.Close();
return false;
}
}
my stored procedure "sp_offset1" is
CREATE PROCEDURE [dbo].[sp_offset1]
@offset numeric,
@appname varchar(20),
@os varchar(20)
AS
select * from tb_offset
where @offset=" + offset + "
I have a stored procedure that works fine for classic asp, but how can I get my output parameters data back from in /MVC 2 / linq/ entities framework model . I have inported the function also, but when i try to code it i dont get results ...i know this is a matter of lack of / knowledge or exmple because i have been scouring the web for it and cannnot find into that accually works.
here is the stored proc.
[Code]....
Here was the one of the few tries I did:
[Code]....
but it executes fine does not give me an error, but also does not return the info i need to the viewmodel
I keep seeing stuff about "ref" on the net but "ref" shows " arbument # should not be passed with the ref keyword.
So i am not sure if there is a problem with the model, or with my understanding this, Now for your info I can do the same step with returning a dataset from a stored procedure fine, but I dont want a data set I just want excatly the data in the output parameters from the stored procedure.
I'm having trouble figuring this error out. I have a grid on an ASPX page that displays data from a stored procedure in an SQL Server 2008 database. When the page loads, I get the following error:
"Procedure or function <sp_name> has too many arguments specified."
Here is the code for the grid and the datasource:
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1" ShowFooter="True" OnRowDataBound="GridView1_RowDataBound"
AllowSorting="True">
[code]....
Here's the code from the stored procedure:
ALTER PROCEDURE [dbo].[sp_GatewayMerchants]
-- Add the parameters for the stored procedure here
@StartDate DateTime,
[code].....
The datasource is passing 4 parameters, and the stored procedure is accepting 4, but when the page displays I get the error mentioned above.
EDIT: Here's the code behind for the template column. But I'm not sure how this could be causing extra parameters to the SP.
protected void Command_Click(object sender, EventArgs e)
{
var merchantID = Convert.ToInt32(((LinkButton)sender).CommandArgument);
[code].....
If I remove the ASP:LINKBUTTON the code works. So why would a LINKBUTTON be causing this?
I need to update a table with values from a listbox. I am trying to create as many parameters as there are items in the list, my code below, but how do i name them differently? so that they dont' overwrite each other?
For Each item As ListItem In ris
Dim pID As New SqlParameter("@userid", SqlDbType.Int)
pID.Value = objFormat.CheckSQL(item.Value)
myCommand.Parameters.Add(pID)
Next
and on the SQL side, is it possible to write an update statement, that will take a dynamic number of parameters?
so for example, i need to update multiple users with the same value in the "active" field...
I have a working controller for another stored procedure in the database, but I am trying to test another.
When I request the URL; http://host.com/Map?minLat=0&maxLat=50&minLng=0&maxLng=50
I get the following error message, which is understandable but I can't seem to find out why it occurs;
Procedure or function 'esp_GetPlacesWithinGeoSpan' expects parameter '@MinLat', which was not supplied.
This is the code I am using.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; [code].....
i have a stored procedure to update a table. not all fields are required and some can be blank.for example, title is not required, but when it's blank i get an error
Dim ptitle As New SqlParameter("@title", SqlDbType.NVarChar, 20)
ptitle.Value = objFormat.CheckSQL(title)
myCommand.Parameters.Add(ptitle)
ex {"Procedure or Function 'sp_UpdateUser' expects parameter '@title', which was not supplied."} System.Exception
how can i fix it so that it allows for nulls if the data field is blank?
When I try the following:
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I get an error saying No overload for Add method takes 2 arguments. HOw would i pass the PaycheckID in then as a paramter?
I want to send an array of integer to sql server Stroed Procedure as parameter from vb program. How i can do this.
Secondly how I declare an parameter array in stored procedure which accept the array of integer.
I am working on LINQ. I am calling a SQL Stored Procedure with 2-3 parameters it's working fine. When i am going to call Stored Procedure with 8 to 9 parameters the auto generated column is not comming automatically. So i am unable to use LINQ with Stored Procedure with multiple parameters.
View 4 RepliesI have created a stored procedure shown below ,how will i call this from c# code behind to get the result and results are stored in dataset.
USE [Test]
GO
/****** Object: StoredProcedure [dbo].[tesproc] Script Date: 09/01/2010 13:00:54 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[tesproc]
-- Add the parameters for the stored procedure here
@a float, @b float, @c float,@d int
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
select Id, Name1,ZipCode,StreetName,StreetNumber,State1,Lat,Lng, ( 6371 * ACOS( COS( (@a/@b) ) * COS( (Lat/@b) ) * COS( ( Lng/@b ) - (@c/@b) ) + SIN( @a/@b ) * SIN( Lat/@b ) ) ) as distance from business_details where ( 6371 * ACOS( COS( (@a/@b) ) * COS( (Lat/@b) ) * COS( ( Lng/@b ) - (@c/@b) ) + SIN( @a/@b ) * SIN( Lat/@b ) ) )<@d
END
If i execute this stored procedure in sql server its working fine with this following call
exec dbo.tesproc 12.9216667 ,57.2958,77.591667,1
I have a stored procedure which handles a SELECT query on an SQL 2005 table. Works fine. Now I need to add a bunch of parameters to the query--these are all boolean, with checkbox web controls on the .aspx page to set the parameters true or false, and bit columns in the SQL table. These parameters need to be optional, so that parameter doesn't filter out any records unless it's checked. Here's the original sproc:
[Code]....
Can I just add on all those boolean parameters like so?
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I have a table with 4 columns.The first column is a list of teams.The other three columns specify whether the team member with the particular id is present on any particular day .Say for example in the third row the running Team has 2 and 3 which means team member with the id 2 and 3 are present.Multiple values are seperated by the pipe symbol '|'.I have a Query like this
Select Teamname from tblTeam where Running not like '%|2|%' and Running not like '%|3|%' and Running not like '%|7|%' and Biking not like '%|1|%' and Biking not like '%|4|%' and Biking not like '%|7|%' and shooting not like '%|3|%' and shooting not like '%|4|%' and shooting not like '%|7|%' Basically i am searching the columns with like clause.The search criteria for each column may vary.In the above query i am searching for Teams where Running column does not contain 2,3 and 7,Biking column does not contain 1,4 and 7 and the shooting column does not contain 3,4 and 7. I would like to set a stored procedure where i would be able to pass 3 set of parameters from the code behind(I am using VB.net) for Running column search,Biking column search and the shooting column search.
Can someone tell me writing a simple stored procedure.I have a table with 4 columns.The first column is list of teams.The other three columns specify whether the team member with the particular id is present or not on any particular day .Say for example in the third row the running column has 2 and 3 which means team member with the id 2 and 3 are present.Multiple values are seperated by the pipe symbol '|'.
Instead of dynamically building an sql to update data based on certain fields that are filled in, I would like to try and do it via a stored procedure I have three fields passing potentially passing to a stored procedure
myCommand.Parameters.AddWithValue("@Field1",
Field1.Text)
myCommand.Parameters.AddWithValue("@Field2",
Field2.Text)
myCommand.Parameters.AddWithValue("@Field3",
Field3.Text)
Stored Procedure accepts 3 parameters
@field1 nvarchar(20), @field2 nvarchar(20), @field3 nvarchar(20)
I want to be able to pass parameters in a variety of ways
field1, field2, field3
or
field1, field3
or
field2, field3
When I attempt thsi, it provides an error of a missing parameter when I do not supply all three. Is there any way to pass exclude parameters at times. The most important thing is that I do not want to update the field to a null when a parameter is not passed, I want it to exclude updating that field altogether
I want to return all rows from a SQL Server 2008 database table into a SQL data source if a textBox field is blank. So I made a stored procedure with an if @date IS NULL clause.
Although the stored procedure seems to be working fine in Visual Studio 2008 the actual webpage displays no results.
I am guessing I have to send a DBNull value to the stored proc if textBox.Text == string.Empty. I tried the SqlDataSource1.SelectParameters.Add but it seems that I get a conversion error from DBNull.Value to string.
Is this the source of my problems or am I missing something else? How would I pass DBNull.Value to a stored proc if a textfield is blank?
I have a name/value pair in a List<T> and needing to find the best way to pass these to a stored procedure.
Id Name
1 abc
2 bbc
3 cnn
What is the best way to accomplish this?
I have a question. How do we define date output parameters for a stored procedure?
before you answer,I should mention that I am not referring to the sql syntax definition ,which is @mydate datetime output.
This is ok,what i am asking is HOW DO I SPECIFY IT IN LINQ WHEN I NEED TO CALL THE STORED PROCEDURE IN THE SERVER SIDE CODE. I am repeating that I do I am not referring to the sql definition .
How do you turn this, into a stored procedure:
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionStringNEW %>"
SelectCommand="SELECT * FROM [Insert] WHERE ([Sellername] = @Dogname)">
<SelectParameters>
<asp:QueryStringParameter Name="Dogame" QueryStringField="ID" />
</SelectParameters>
</asp:SqlDataSource>
I'm having difficulty with the querystringparameters.
Ive tried a few ways of doing this without success and got together a simplified example so hopefully I can get an answer. When I try to INSERT using a stored procedure InsertTest (normal SQL works OK) I cannot. I need to know how to pass the @Model parameter to the Stored procedure
Have a Stored procedure which can be executed and after entering string for @Model through wizard a new record is created
My asp:SqlDataSource includes InsertCommand="InsertTest" InsertCommandType="StoredProcedure"
Also my <InsertParameters includes the asp:Parameter Name="Model" Type="String"/>
My drop down (and I think this is where the problem is ). Record is Inserted after choosing Model and pressing enter
Do I have to set one of the properties in the drop down to tell the Stored procedure the parameter being passed is the parameter Model ??
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I want to know, how do i send a multivalue parameter from C# to Stored Procedure which is used in WHERE CLAUSE in IN statement?
for eg:
CREATE PROCEDURE [dbo].[sp_GetPolicyDivOff1]
@Insid varchar(5000)=null
AS
SET NOCOUNT ON
SELECT MST_GroupCompany.GC_Name,MST_DivisionalOffice.DIV_Name FROM MST_DivisionalOffice INNER JOIN MST_GroupCompany ON
MST_DivisionalOffice.DIV_FK_GC_ID=MST_GroupCompany.GC_ID where GC_Name IN(@Insid)
Via the button1_ click event I retrieve all files in a directory (Example Follows)
[Code]....
I now need to check whether this filename exists as a field in a SQL Server table. For example, if the directory retrieves a file named ExampleFile.txt which does not exist in the (Table = TableFileStore;s Field = FileRetrievals) then I want to insert the filename.
How do I construct a stored procedure to pass the filename(s) into a stored procedure as a parameter? Do I need to also create an array of filenames and pass the array into my stored procedure? Does the stored procedure belong within the foreach loop?