ADO.NET :: DataReader Or DataSet To Read An Output Parameter Not Essential?

Nov 4, 2010

I always thought we had to use a DataReader or a Dataset to read a given SQL data but i realized that it is not necessary to use them to read an SQL Output Parameter(im not a SQL expert).

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Datareader Vs Dataset - Get The Number Of Rows From The Datareader?

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I'm having a method that exports content from the database to excel files. The method taks as paramaters a DataReader param and a int param - the number of rows. For the number of rows i'm using a dataset, wich i fill using the same query as for the datareader. So I'm executing it twice... Is there a way I can avoid that? get the number of rows from the datareader?

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What is the difference between DataSet and DataReader in Asp.net with Example..

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Any one can suggest a method to convert Datareader to dataset or any alternate method

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DataSource Controls :: DataReader.Read() Not Working?

Mar 16, 2010

I have used SqlDataReaders a million times. Someone, what is wrong with this code:

SqlConnection connection = new SqlConnection(connectionString);
try
{
connection.Open();
SqlCommand command = connection.CreateCommand();

[Code]....

I have checked this against similar classes and it is exactly the same, but this one doesn't work.

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DataSource Controls :: Almost 2 Seconds To Read A Datareader Field

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I use a SqlDataReader to get fron sqlServer a row af a table. This table have a text field where I store a Xml configuration. In one case this Xml grow up to 650Kb. When I get the field from the datareader it cost amost 2 seconds:

INFO 2010-04-16 09:46:40,559 [12] Cms.dataContenido - readed
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[Code]....

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Forms Data Controls :: Binding Dropdown List Using Dataset Or Datareader?

Jan 25, 2011

- i have two drop down lists- ddl_SelectClient, ddl_SelectApplication

- when a client is selected in ddl_SelectClient, i have to show the list of the clients applications in ddl_SelectApplication

- i have written the below code in the ddl_SelectClient_SelectedIndexChanged routine to do the same

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[Code]....

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I am getting the following error when i am trying to assign values to controls on form via datareader, i know i got one row. but this particular field has no data in it.

I do have lot of other forms where i use the same style

getting this error: invalid attempt to read when no data is present

on this line: If gDatareader("CutoffDate") Is DBNull.Value Then

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SQL Reporting :: Assign Empty Dataset To The Tablix Or Conditionally Change The Dataset For The Tablix Based On A Parameter?

May 4, 2010

I have a paramater Country Which have options to select 10 different countries.. i am using 10 tablix one for each country .... When i select a country , only one tablix Gets visible and the other 9 tablix gets invisible.. The problem is that all the invisible tablix are calling sp that is dataset ... Cause it is reducing the performance of the report......how can i assign empty dataset to the tablix or conditionally change the dataset for the tablix based on a parameter...

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Mar 5, 2010

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)
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.
.
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Output Parameter Into Label?

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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
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[code]...

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ADO.NET :: ExecuteNonQuery With Output Parameter?

Feb 7, 2011

I am trying to return output parameter from stored procedure.

Here is my code:

protected void Button1_Click(object sender, EventArgs e)
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Sep 5, 2010

How can i get to see the raw jsonresult of an action in a controller? i want to make sure its returning correctly formed data.

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ADO.NET :: LINQ : Money Output Parameter?

Dec 14, 2010

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.

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DataSource Controls :: How To Get SP Output Parameter From ODS

Aug 4, 2010

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]....

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DataSource Controls :: Output Parameter Not Getting Value?

Jul 12, 2010

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.

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SQL Server :: Get The Value Of The Output Parameter In A Webmethod?

Feb 24, 2011

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?

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Read C# Method Output From Javascript?

Apr 12, 2010

I have a C# class method that return a xml document not file. How to read C# method output from javascript? I don't wont to use script manager.

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SQL Server :: How To Add An Output Parameter To A Stored Procedure

Oct 7, 2010

how do I add an output parameter to a Stored Procedure that returns a code or string to the calling app

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Way To Displaying SQL Stored Procedure Output Parameter Value

Jul 30, 2010

I 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#.

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Check If Output Parameter Is Null Before Binding?

Jan 26, 2011

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]...

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DataSource Controls :: How To Capture SQL OUTPUT Parameter

Oct 11, 2010

m 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]....

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DataSource Controls :: Output Parameter Always Returns 0?

Apr 15, 2010

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?

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Databases :: Detecting Nulls In Output Parameter Using ODP?

May 17, 2010

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.

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SQL Server :: Rounding Output Parameter From Stored Proc?

Sep 17, 2010

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.

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