DataSource Controls :: How To Load A DataReader

Apr 21, 2010

How do I load a datareader in a defult.aspx page using while using a database connection that is defined in the web.config file?

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Similar Messages:

Forms Data Controls :: Populate Dropdownlist In FormView With DataTable.load (DataReader)?

Jan 29, 2011

I have no problem when paging my FormView, the dropdownlist does not read the next record and keep the value of the first loaded record? All other textbox control behave normally and move from record to record excepted the ddl??Here the code.

Public Sub DoData()
Dim myConn As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("LocalSqlServer").ConnectionString)
Dim myCommand As SqlCommand = New SqlCommand("SelectSupplier", myConn)
myCommand.CommandText = "SelectSupplier"

[Code]....

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Forms Data Controls :: Dataadapter.Fill() Or DataTable.Load(Datareader) Give The Best Performance

Jan 21, 2010

i'm developing a website to my office, i have a question related data loadinf performance related.

dataadapter.Fill() or dataTable.Load(Datareader) give the best performance in asp.net ??

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DataSource Controls :: Use A DataReader With SQL?

Mar 29, 2011

I have put a SQLDataSource on my page and everything is adjusted and it works properly. I read an article
here which was indicating that you can use a DataReader in order to get data from sqldatasource, but it doesn't say how, the only thing that is said is to use DataSourceMode property in order to adjust it for a DataReader.

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DataSource Controls :: Create ConnectionString Using SQL DataReader

Sep 11, 2010

why this first connection works but the second doesn't?

[Code]....

I'm trying to use <asp:FileUpload> to upload images and as far as I know you have to use <asp:SqlDataSource> to do it but I need to create the connections string using entries stored in a database.

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DataSource Controls :: DataReader Telling Me It Needs To Be Closed

Jun 28, 2010

Dim sqlc1 As New SqlCommand("sp_navmenu 275,1,21", ERIKSDbCon)

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DataSource Controls :: How To Evaluate Nothing Value Returned By Sql Datareader In Vb.net

Aug 24, 2010

When a sql query returns NULL , I can use the following code to evaluate:

[Code]....

When a sql query returns nothing, neither IsDBNull nor is Nothing works. I don't know why some sql queries return null while some return nothing when there are no data returned. But anyway, can somebody tell me how to evaluate nothing value returned in sql datareader in vb.net? When I put the cursor over signInfo variable in debug mode, I can see Nothing show as its value. But the line does not work

[Code]....

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DataSource Controls :: How To Convert Datareader To Dataset

May 11, 2010

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

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DataSource Controls :: DataTable With DataReader Not Working?

May 17, 2010

dataTable with dataReader not working

[Code]....

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DataSource Controls :: Datareader - Loop Through Results In VB?

Feb 1, 2010

I would like to loop through my result set and generate a menu structure like this:

pagetitle
pagetitle
subtitle
subtitle
pagetitle
pagetitle

So far I have the following code but it doesn't generate the menu?

While reader.Read()
' set title
sitetitle = reader.Item("siteName")
mydata &= reader.Item("pagetitle")
' check subtitle exists, if so, build menu, loop though subtitles somehow?
if not IsDBNull(reader.Item("subtitle"))
mydata = "<ul>"
mydata &= "<li>" & reader.Item("subtitle") & "</li>"
mydata &= "</ul>"
end if
End while

Qeury and result set below:

sql:

SELECT subpages.subpageid, pages.pageid, sites.sitename, sites.siteid, pages.siteid,pages.pagetitle, subPages.subtitle FROM pages LEFT JOIN sites ON pages.siteid = sites.siteid LEFT JOIN subpages ON subpages.subpageid= pages.pageid WHERE sites.siteID = 1 ORDER BY sites.siteid, pages.pageid, subpages.subpageid ASC

results:

subpageid | pageid | siteid | siteid | pagetitle | subtitle
NULL 1 SCHS 1 1 Sandwell Community Healthcare Services NULL
NULL 2 SCHS 1 1 About Us NULL
NULL 3 SCHS 1 1 Your Services NULL
4 4 SCHS 1 1 Equality and Diversity Team at SCHS 1111
4 4 SCHS 1 1 Equality and Diversity Team at SCHS 2222
4 4 SCHS 1 1 Equality and Diversity Team at SCHS 333
4 4 SCHS 1 1 Equality and Diversity Team at SCHS 44444
NULL 5 SCHS 1 1 Single Equality Scheme NULL
NULL 6 SCHS 1 1 Diversity Strands NULL
NULL 7 SCHS 1 1 Equality Impact Assessments NULL
NULL 8 SCHS 1 1 Quality and Safety Committee NULL
NULL 9 SCHS 1 1 Contact Us NULL

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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 :: There Is Already An Open DataReader Associated With This Command Which Must Be Closed First.

May 27, 2010

protected void Page_Load(object sender, EventArgs e)

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DataSource Controls :: Retrieve Text Field Using Datareader

Feb 25, 2010

I have text field on a sql server table and I retrieve it on string variable using datareader : string result = reader["MyTextfied"] but I have this errors ( text or binary field cannot be troncated ) My text fied contains a large of text

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DataSource Controls :: Manage A Datareader With Data Field?

Mar 25, 2010

i have a datareader who read from data field from sql server, this field is datetime format now, when this field is null it returns 01/01/1900!! how can i manage it without if or some check, is there a property in datareader or sqlserver properties who i can return null value from datetime field?

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

Apr 16, 2010

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
INFO 2010-04-16 09:46:42,356 [12] Cms.dataContenido - XMLContent

This is my code:

[Code]....

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DataSource Controls :: Reading With DataReader Into List And OutOfMemoryException

Sep 23, 2010

I'm Using a DataReader to Read about 100,000 records, my code look like :

[Code]....

I have a per row computation in reading the rows on GetMyType2Info() method, and this method also another method that I return only one record by ExecuteReader(). the problem is that when the MyTypeList (List<T>) has about 21,000 Items of MyType (<T>) System.OutOfMemoryException is thrown. wanted to know how to resolve this and wanted to know more about the maximum size of List<T> capacity. in addition the execution of the main Query with 100,000 records take about 4 seconds in SQLServer a record has only types of nvarchar , float,datetime and int

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DataSource Controls :: ODBC Datareader Is Not Working With DB2 Some Tables?

Jun 2, 2010

This is the code i am used for fetching data from DB2 server (windows based server)In the same server tables created by me is working fine...eg:

oCommand.CommandText = "SELECT * from DEB.TESTUSER";

below is a table created by another application but the data reader is not working with this query ( table in the same server with same DB as above)

oCommand.CommandText = "SELECT * FROM DEB.RULE_GROUP";

If any permission or any other things i want to check .....i mean security related.....odbcadapter is also working fine....pls help regarding the datareader.....below is the complete code......

private void btnSelectRecord_Click(object sender, EventArgs e)
{
OdbcConnection oConnection = null;

[code]...

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Web Forms :: SQL DataReader Takes Lot Of Time To Load Data

Nov 29, 2012

i am having the problem that i am using datareader to get contents in my asp.net page.But the page takes a lot of time to load.How to decrease the loading time of the apage and increase the performance of my page.

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DataSource Controls :: Ckeck Sql Query Perform With Load By Using Tools For Create Load?

Feb 16, 2010

how to check performance of sql server query with load ,also wants to create load by any tolls like load runner,if any url for download load runner or any other tolls by which we can create load please give me some idea related to it.

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DataSource Controls :: MARS - "There Is Already An Open DataReader Associated With This Command Which Must Be Closed "

Feb 23, 2010

I am using MS SQL Server 2005 and i added "" to my connection string and i still have the problem

"There is already an open DataReader associated with this Command which must be closed" ;

SqlDataReader dr2;
StrSql = " SELECT * from Modules";
cmd.Connection = conn;
cmd.CommandText = StrSql; [code]....

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

Nov 15, 2010

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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C# - Already An Open DataReader Associated With This Command - When I'm Not Using Datareader

Jul 28, 2010

I am getting an error that an open DataReader associated with this Command, when I'm not using datareader(though probably executereader() is the same thing) how would I close this if I don't have a datareader present?

using (SqlConnection conn = new SqlConnection(ConnectionString))
{
SqlCommand cmd = new SqlCommand("spSelectAllTypes",conn);
cmd.CommandType = CommandType.StoredProcedure;
[code]...

I just want to be able to databind a bunch of dropdownlist in one open connection. (before I had multiple open and closes for each control)

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DataSource Controls :: Load By File Name (SSIS)?

Mar 22, 2010

What's the best approach for loading a flat flat according to its name? A Mainframe job places a file on a server for me and it always beings with MISA and I load the file monthly. After loading the file I'd like to move it into a History folder on my server.Should I use a Script Task or the Foor Loop Container to accomplish this? Keep in mind I only want to load files that begin with "MISA".

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DataSource Controls :: Code To Load Xml File Into Sql Table

Apr 29, 2010

I need to write a code in asp.net that pick xml file and load it's content into sql table. How it can be done?Which way is better, to create the table dynamically every time I pick an xml and after I done with it to delete it.. or to create the table manually once, and just fill it and truncate it during doing the job?

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DataSource Controls :: How To Load Data From Excel Sheet To Sql Server

Jan 26, 2010

how to load the data from excell sheet to sql server.. that is i have data in excell sheet with four columns..

so i am trying to create sam four columns in sql server table..

then how to trsnfer the data from excell to sqlserver?

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