DataSource Controls :: Trying To Load A Mysql Reader Text Into A Textbox But Failing?

May 24, 2010

I am trying to pass a mysql reader string variable into a textbox so on the asp front end it will automatically show the resultset as soon as the page is loaded. The following is my code:

protected void Page_Load(object sender, EventArgs e)
{
if (!Page.isPostback)

[code]...

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I have a website which uses the latest AJAX Control toolkit. On my pc, the website is loading perfectly well. The page makes use of a tab control and an update Panel - AJAX Control toolkit.Unfortunately when I uploaded the website online, on the shared web server, the website gives the following 3 errors (on IE) :

1) ASP.NET Ajax client-side framework failed to load
2) 'Sys' is unidentified
3) 'Sys' is unidentified

The page finally loads, however the ASP.NET Ajax controls do not load (Tab controls and UpdatePanel). The rest of the page loads perfectly well. I made some searches online, however still cant find a solution.

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I have an .aspx page with a gridview and a details view for looking up products. It is working perfectly. When I select "Details" on the gridview the details view accurately populates.I added an image named TagImageand need that image to display the correct one based upon the product changed when "Details" is hit. I'm using code behind and have checked my image directory string to make sure it is OK but the images do not display. Here is the vb.net code hehind I am using that successfully populates the details and was hoing it to display the picture:

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[code]....

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MySql.Data.MySqlClient.MySqlException: Invalid Attempt To Read When Reader Is Closed

Jan 15, 2010

so i have a content page that load some content into repeater one of the repeater items is UserControl, when the page is load for the first time everything is perfect, but if i try to do postback and reload the repeater i get this error:
Code:

Exception Details: MySql.Data.MySqlClient.MySqlException: Invalid attempt to Read when reader is closed.

this error is raised in the repeater databind event.

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DataSource Controls :: Loop Through Reader Using VB?

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how I can loop through the results in VB, I only ever seem to get the last row, I would like to list all rows.

My code is below

[Code]....

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Forms Data Controls :: Query - Reader DropDownList3 Click On Some Text?

Jul 21, 2010

I have this code:
SqlDataSource1.SelectCommand = "Select (AttributeName +'|'+ Value) DisplayTextField tbl_PaymentDetails FROM WHERE AttributeName =" Credit card number ';

[code]...

DropDownList3 click on some text.

Example:
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dropdownlist3 ... Test2 (read from table)
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DataSource Controls :: String Input Failing When Trying To Log On?

Feb 2, 2010

Having a bit of trouble with a logon page I created using text boxes for a User ID number and a password.

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how to edit this so if a user enters a string value instead of a numeric value, an error message can show up on a label instead of the whole project coming to a halt because of an error?

Here's the code I have for the page so far, which does the job (apart from this problem!)

using System;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
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[Code]....

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DataSource Controls :: Retrieving Tables Using Reader?

Jan 20, 2010

I'm quite new to ASP.NET and i was wondering if someone could answer some of my questions.1. What is the difference between a DataTable and an Array? Is the DataTable a serverside control? Is it exposed to the user?2. Does the reader retrieve the column names? If so- how can I capture them? Are they the first row?2. Is it possible to populate an Array using the following sort of code, and if so- how?:

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DataSource Controls :: Populating Textboxes Via Data Reader ?

Sep 29, 2010

Here is what I have tried:

txtCost.Text = string.Format("{o:c}", dr["Cost"]);

Here is the error I receive. How can I format the data that is coming from the data reader into currency format??? Also, is there a way to format it into currency without the dollar sign?

Input string was not in a correct format. Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.FormatException: Input string was not in a correct format.

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DataSource Controls :: How To Check That Data Reader Is Null

Jun 4, 2010

[Code]....

but if table is empty i.e. there is no record for Store_no=storeno then it bill_id = (Convert.ToInt32(reader[0]) + 1); give a Null exception.

I want to set bill_id=1 if there is no previous record in table of that particular store number. then How to do this.

i.e. How to check that reader[0] is null

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DataSource Controls :: Reader.close() And Transaction.commit()?

Feb 8, 2010

I'm getting "This SqlTransaction has completed; it is no longer usable" exception when try to commit my transaction after sqlreader is close.Here is the code sample

[Code]....

...so when I get to commit the transaction it raises the mentioned exception: "This SqlTransaction has completed; it is no longer usable". I have also noticet that Command.Transaction becomes NULL after reader.Close()My question is: Can I use SqlDataReader and SqlTransaction ? Maybe to use BeginExecuteReader and EndExecuteReader ?

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I have been able to successfully read a row of data from an SQL table using two column parameters. Now I would like to update this row with new information. Is this possible since the reader does not specify which row was read with the 'reader.Read();' command?

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DataSource Controls :: How To Convert Empty Textbox Text To Null On SqlCommand

Mar 22, 2010

How would I convert an empty textbox.text to null when updating/inserting using an SqlCommand? I've got this to populate the textbox:

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[Code]....

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I have a GV that is populated via a reader: Using reader As SqlDataReader = cmd.ExecuteReader() I have autogenerate edit button=T but it will not go into editmode. Must I create template to handle this?

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May 20, 2010

So far i've populated my grid view with my roomID. however using data reader I don't seem to be able to get more than one column to auto generate even though i'm now looking for three values : SELECT tt_roomEquip.roomID, tt_room.roomCapacity, tt_equip.equipTitle is my select bit of the sql, though it's only putting roomID into my grid view.

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DataSource Controls :: Invalid Attempt To Call Read When Reader Is Closed ObjectDataSource?

Feb 16, 2010

Environment is : vwd2008, asp.net 3.5, linq to sql object model, formview, stored procedure used for query.On going problem... I have a simplified page with a webform content area from a master page. The content area contains a FormView connected to an object data source thru the design view tag. The O/R designer has the Lease Table and the stored procedure in the method area.

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Apr 9, 2010

I get the following error when I try to update rows in the DebtorList table : Invalid attempt to call FieldCount when reader is closed with LINQ


// Query the database for the row to be updated.//USE DL TEST VERSION...

var queryUpdateWithoutExclusions = (

[Code]....

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Jan 14, 2010

I'm currently trying to build a html table from the results of a sql data reader. As my table has multiple records, I want the code to loop through the reader and output the details on individual lines of the page. In ASP I have done this in the past using something like

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but as I am using data readers I'm not sure what the equivalent is.

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i'm trying to read a sql file like the following and bind it to a listbox and display the names of the stored procedures the procedures that should be binded onto a listbox in this example are...

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ADO.NET :: Can't Get Reader.hasrows And Reader.read To Work Together In Code Behind

Feb 22, 2011

I have some code in my vb.net code behind that queries a database, and if there is data, outputs it from the codebehind to a datalist on my asp.net page. In addition to sending the data to the datalist on the page, I need to take the value from "mbillaty" that is returned from the sql query, and have that value be the selected value for a drop down box also on the page. I can get either the datalist to fill, or the selected value for the dropdown box to be selected depending upon which bit of code I place before the other (ARGH), but I can't get them to both work together on the page. What am I doing wrong?

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

Feb 16, 2010

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DataSource Controls :: Sql Insert Failing On Detailsview Insert Or Update?

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I am using 1 textbox with a Ajax Calendar extender to allow my user's to select a date graphically (exp: 12/15/2009). I have another textbox for the hour and minutes in military time(exp: 15:30). I think i have the code to grab the data from the 2 textbox's and combine them to be inserted into the field (exp: 12/15/2009 15:30). Here is my insert code for the Field:

[Code]....

However unless I make all the fields Nullable the insert fails, on top of that none of the other field that I have selected on the Detailsview Insert or Edit are inserted into there fields. Half of my fields have to be non-null values. So how do I fix this?

I can supply additional vb code and the aspx code if needed.

This is the error I'm getting: Cannot insert the value NULL into column 'Operation_type', table '/GAOSDB.MDF.dbo.BC_Perf_Log'; column does not allow nulls. INSERT fails. The statement has been terminated.'

This is the first non-null column.

I need to get this figured out because I have 30 other web pages that will be utilizing the same approach.

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DataSource Controls :: How To Connect To Mysql With C#

Apr 23, 2010

oledbCon.ConnectionString = "Provider=MySqlProv; Data Source=localhost; Initial Catalog = AnymoreComputers; User id=WeakUser2;Password=1234";

my site is working and running wrote in c# and mssql 2005,

now i want to make it run with mysql.....i converted all my data base...and created the same users (same names)

anc copied all to my sql .

the question is how do i connect to mysql wit c# ......

my regular connection for mssql :

oledbCon.ConnectionString = "Provider = SQLOLEDB.1; DATA Source = (local); Initial Catalog = test1; Integrated Security = SSPI; User ID=WeakUser2;Password=1234";
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oledbCon.ConnectionString = "Provider=MySqlProv; Data Source=localhost; Initial Catalog = test1; User id=WeakUser2;Password=1234";

this connection doesnt works ... where is my mistake ? what hsould i do ... ?

and this is the error ig get when i run my solution :"The ConnectionString property has not been initialized."

i am using OleDbDataAdapter and dataSet ....

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DataSource Controls :: Set Up Connectionstring At Runtime From Web.config - MySQL?

Jul 7, 2010

I want to setup the connectionstring of the SqlDatasource of a dropdown list at runtime, eg. Page Load event. I have install MySQl ODBC driver, System DSN name as "MySQL_Employee" If I have an entry in Web.config:

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how i can save a file into my mysql database..

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