How can i check if an output parameter is null before i bind it to a asp literal, and if it is null i want to just make the literal
hname1.Text = cmd.Parameters("@hotel1").Value
hname1.DataBind()
hname2.Text = cmd.Parameters("@hotel2").Value
[code]...
I have article.aspx page that there is some Textboxs and fileupload control and insert when users click on btnInsert their data insert into database below is Behind code
protected void btnInsert_Click1(object sender, ImageClickEventArgs e)
{
string path = Server.MapPath(".") + "../image/House/article/pdf";
string filename = System.IO.Path.GetFileName(fuppdf.PostedFile.FileName);
string[] validext = { ".pdf" };
string ext = System.IO.Path.GetExtension(fuppdf.PostedFile.FileName);
if (Array.IndexOf(validext, ext.ToLower()) < 0)
[code]....
I have set the value of an int parameter to the attribute of a textbox.The textbox can be empty or null, how to check whether the parameter is empty or null?
View 5 RepliesHow to check the query string value null, if null then display the default value instead of object reference error.
View 1 RepliesHere is my stored proc
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
Create PROCEDURE [dbo].[sp_GetNextSeq] (
@p_NextSeqNo int = NULL OUTPUT
)
AS
BEGIN
SET NOCOUNT ON;
BEGIN TRY
BEGIN TRANSACTION
Generate Next Sequence Number
[code]...
I am using dropdownlist in my view page with some values which will display corresponding ID(primary key of other table) in my database.If i leave my dropdownlist blank and save it in database then its showing null parameter error. Can you explain how to use this reference type to overcome this error
View 2 RepliesI am developing a web application where in i have a WCF service which interacts with the database using entity framework. I want to get rid of creating Classes for each & every LINQ query
e.g
public class Emp
{
public int CD{get;set;}
public string Name{get;set;}
}
public List<Emp> GetServTypeForPromotionDue()
{
return (from a in Context.TableName
select new Emp{ a.CD, a.NAME });
}
for other table & LINQ i have to create a separate class every time. Alternative to this is to use Anonymous method which is not preferable solution. To avoid both the methods I am using Tuple Class where I return List> or List> depending on the return type. This works fine but the problem is I am binding the result of LINQ query directly to a Gridview By default Tuple has properties item1,item2,..& so on. So my griview shows these names are column names so, Is there any way I can change the property name to CD, Name instead of Tuple's Item1, Item2 before binding to grid?
I've started using Enterprise Library and have the following questions:1)How do I add output parameter to this query and how do I get it back:
public int InsertDoc(HDocument document)
{
Database db = DatabaseFactory.CreateDatabase();
int result;
var reader = db.ExecuteNonQuery("sp_InsertDocument",
document.AddedDate,document.AddedBy, document.Title))
.
.
.
}
The db.AddOutParameter requires paremetrers that I don't have like DbCommand.2)I have a few methods that work with database (I transfer from ADO.net) stored procedures, do I have to declare : Database db = DatabaseFactory.CreateDatabase(); in each one of them or I can reuse it?
instead of returning my output paremeter value in my stored procedure to my label it returns the default value i set my output parameter to. why cant i put my output parameter into my text label
Dim reader As SqlDataReader
cmd.Parameters.AddWithValue("@tour", "2365")
cmd.Parameters.Add("@tourname", SqlDbType.VarChar)
cmd.Parameters("@tourname").Direction = ParameterDirection.Output
[code]...
I am trying to return output parameter from stored procedure.
Here is my code:
protected void Button1_Click(object sender, EventArgs e)
{
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["myConn"].ConnectionString))
{
SqlCommand cmd = new SqlCommand();........
I am using LINQ.I have stored procedure as:
ALTER PROCEDURE [dbo].[usp_ATI_OA_GetCalculatedValue]
@OredrID BIGINT = 0,
@SubTotal MONEY OUTPUT,
@ShippingTotal MONEY OUTPUT,
[code]...
The problem is that, how to return OUTPT value to dTtoal and the remaining. Because now it's show assigned values as 1, 2, 3, 4 resp. I mean the bold values.But, if I execute SP using EXEC then it works fine, shows result correctly.
I have a stored procedure with output parameter. I encapsulate it with Table Adapter and BLL. Call it using ObjectDataSource in conjuction with formview, just like the one in Data Access Tutorial. How do I get the output parameter in event INSERTED of the ObjectDataSource in code behind (VB)?
My stored procedure looks like this:
[Code]....
My BLL code looks like this:
[Code]....
We have a stored procedure which creates and returns as output the next value in line:
[Code]....
Yes, the dullards who created this system not only failed to use an identity for the primary key of this table, they then proceeded to add 1 to a varchar column to create the new value, thus insuring it can never be anything but numeric.
Sigh. I'm told we cannot address that obvious deficiency now, and we have to leave the column as varchar. Double sigh.
If I execute this sproc from SSMS, the hh_num variable is returned as expected:
[Code]....
However, when I run it through the application, the parameter I set up as output does not get its Value attribute changed:
[Code]....
I've verified that the "@hh_num" maintains its direction and name through the ExecuteNonQuery call, but its Value remains an empty string.
I am trying to return a sum total figure from a stored procedure by using the output parameter. When I execute the stored procedure in SQL it returns 0 or a valid number like it should but when I try to use the webmethod listed below I keep getting a 0 even when I should get a valid number back.
ALTER PROCEDURE spGetCustSum
@CustomerCode CHAR(4),
@Sum AS INTEGER OUTPUT
AS
BEGIN......
Am I missing a step or have some wrong code in this method?
How do you evalute a null sql output paramater. I've tied several ways but can find one that works. I always get an error code of Conversion from type 'DBNull' to type 'String' is not valid.
I've tried both IsDbNull and if the value = nothing - both return the same error.
Code:
If IsDBNull(e.Command.Parameters("@JobCount")) Then
Me.lblInternalJobCount.Text = 0
Else
Me.lblInternalJobCount.Text = e.Command.Parameters("@JobCount").Value
End If
'I have also tried checking for nothing and that doesn't work either
how do I add an output parameter to a Stored Procedure that returns a code or string to the calling app
View 1 RepliesI am having some trouble with the below code snippet. It is a stored procedure which executes on load that has an output parameter which should display in a label. Familiar which Vb however not so much in C#.
View 2 Repliesm trying to capture an output parameter from an SQL insert.for
CREATE TABLE [dbo].[Test](
[TestID] [decimal](18, 0) IDENTITY(1,1) NOT NULL,
[Test1] [int] NULL,
CONSTRAINT [PK_Test] PRIMARY KEY CLUSTERED
INSERT INTO [Test] ([Test1]) OUTPUT inserted.TestID as TestOut VALUES 1))
[code]....
I have a gridview that has the header row modified in order to add new records; the gridview is bound to a sqldatasource control. In my code behind, i handle the insert in the following manner:
[Code]....
I know the insert is occuring because the new record shows up in the grid after the databind, but the output parameter is not picking up the scope_identity() value...what am i doing wrong with the output parameter?
I'm converting my application from using System.Data.OracleClient to Oracle.DataAccess.Client and I've noticed some weird behavior.
I am calling a stored procedure that sets an output parameter value. Under some circumstances, a null value gets assigned to this value and I need to detect it.
Here's how I'm declaring it using ODP.net:
cmd.Parameters.Add("p_status", OracleDbType.VarChar2, 200, DBNull.Value, ParameterDirection.Output)
The old Microsoft driver for Oracle would read the value as an empty string. However, ODP is returning a value {null} (per Visual Studio's debugger), which is not equivalent to null, DBNull.Value, nor an empty string. As a result, the code doesn't branch correctly now.
Is there a better way to write the code below? I have quite a few blocks that are similar, and this is making the code in the Viewpage very messy to work with. The data value with the associated label only needs to be output when certain conditions are met, which is almost always if the value is not null. The options I can think is to use a response.write to atleast minimize the usage of the ASP script tags, or to format the webpage is such a way that the label displays with an appropriate n/a type value.
<% if (myData.Balance != null)
{ %>
Balance: <%= String.Format("{0:C}", (myData.Balance))%>
<% } %>
I have a GridView sourced by a SQL Server stored procedure with several databound fields, including a money column for item values. My stored proc returns the data through a SELECT and everything looks good. The stored proc also has a single output parameter that sums the total value of the displayed data, and this value is displayed in a label above the GridView.
View 7 Repliesi like to pass two i/p parameters to the SP and fetch 2 output parameters.This should done using simple ADO .NET code.
View 1 Replies[Code]....
How do I get the "NewID" parameter value form the above datasource and assign it to a select parameter in a different sqldatasource?
in order to allow my design to keep recently inserted record on a formview i decided to use an output parameter.Currently I have a data layer helper and a class that allows my table to have crud operations.
I have modified my insert stored procedure to the following:
ALTER PROCEDURE [dbo].[InsertContratos]
(
@Contrato int,
@Persona int,
@FechaLegalizacion datetime,
@Vendedor smallint,
@Programa smallint,
[code]...
