I am trying to read data from a SQL Server 2008 database. Initially, I imported a 2007 Access db into the server. I have no problem reading this data. However, if I add new data, either through code or through SQL commands on the Server, I get an error when I try to subsequently read it. I only get the error on new data, not the imported data. Error:
System.InvalidOperationException: Invalid attempt to read when no data is present.
In my page (ASP.NET/VB.NET) I have a dropdown box which is filled with Customer Names. No Problem there. However, when I choose the customer, the rest of the form is supposed to fill with data retreived from the database. If I choose original data, it works fine. However, as soon as I choose a newly added record. It throws the Exception. I have tried to find a solution online, but most answers point to missing read code. I think my code is right, as it reads some records correctly. Is there something that is wrong with my server, or the way I am writing the records?
There is a dropdown box name CNAME on my page...
OnSelectedIndexChanged runs the following code:
sub displaydata(s as Object,e As EventArgs)
locked.checked = "True"
edit.enabled = "False"
Dim CustomerName As String = CNAME.SelectedItem.Text
Dim dread as SqlDataReader
Dim cn As New SqlConnection()
Dim cd As New SqlCommand()
cn.ConnectionString = "Data Source=localhost;Initial Catalog=AnalyticalReports;Integrated Security=True;"
cd.Connection = cn
cd.CommandText = "select Customers.CID, Customers.CNAME, Customers.CADDRESS1, Customers.CCITY, Customers.CSTATE, Customers.CZIP, Customers.CCONTACT, ISNULL(Contacts.CONNAME,'none') AS CONNAME FROM Customers JOIN Contacts ON Customers.CCONTACT = Contacts.CONID
WHERE Customers.CNAME = '"+ CustomerName+"'"
cn.Open()
dread = cd.ExecuteReader()
dread.Read()
CID.Text = dread("CID")
CNAME2.Text = dread("CNAME")
CADDRESS1.Text = dread("CADDRESS1")
CCITY.Text = dread("CCITY")
CSTATE.Text = dread("CSTATE")
CZIP.Text = dread("CZIP")
CONNAME.Text = dread("CONNAME")
cn.Close()
dread.close()
End Sub
CS1061: 'System.Data.SqlClient.SqlDataAdapter' does not contain a definition for 'Rows' and no extension method 'Rows' accepting a first argument of type 'System.Data.SqlClient.SqlDataAdapter' could be found.
I am currently working on visual studio 2008 , sql express 2005, i have copied .mdf and .ldf files , after i copied these files and try execute some existing stored procedure but exception is coming like " Failed to update database xxxxxxxxxxxxxxxxx.MDF" because the database is read-only", I dont knw what's wrong with this , i have executed same stored procedure in old .mdf and .ldf database , and its working fine . but in copied .Mdf , not working.
"The OLE DB provider "Microsoft.ACE.OLEDB.12.0" for linked server "(null)" reported an error. The provider did not give any information about the error. Cannot initialize the data source object of OLE DB provider "Microsoft.ACE.OLEDB.12.0" for linked server "(null)"."
I am running SQL 2005 on Windows SBS 2003 server.
Also on solution 3 you running the below sql query
Do i need to run it on the master database or on my database?
USE [master] GO EXEC master.dbo.sp_MSset_oledb_prop N'Microsoft.ACE.OLEDB.12.0', N'AllowInProcess', 1 GO EXEC master.dbo.sp_MSset_oledb_prop N'Microsoft.ACE.OLEDB.12.0', N'DynamicParameters', 1 GO
I am uisng asp.net 3.5 with c# as language. I want to read the database and store the data in either array or arraylist so that it can be called further in a dropdown list.
I have a lot of members data to enter into the ASPNETDB database. How can I read this data from an Access data file and input into the SQL database. All data is for user Names and Password,
ID Name Contact No Address 1 ABC XXXXXXX ABCNM2 XYZ xxxxxxx ASDFG
Now my requirement is read data from this excel sheet and den encrypt Contact No field for each row and den save data in database, how should it will be done I have to use some ready made available encryption algo for that.
I m uploading a text file. I want to read that text file line by line and I want to save that data into database if there are no errors in that text file. I have 5 different columns in database and I want to take those 5 columns data in the text file and insert into respective columns.
For this, which is the best way to do. Can we read and insert data into respective fields in no time.
am in deep trouble with retriving the data from oracle database. Please HELP ! In one line: "When i retrive the data from oracle database, it's truncate the data if it is more than 4 kb"I have oracle proc param as below:
PROCEDURE p_GetData ( ivar_id IN id_n%TYPE, oclb_owners OUT CLOB, onum_sqlcode OUT NUMBER, [code]...
I have a text file stored in my sql DB. in that .txt file I have certain numbers like:
99435 87889 33455 33555 34556
How to get the count of these numbers from the txtfile stored in the database? Also to read the file and fetch the number one by one in a string? I am using asp.net (C#)
Please try to guide me how to achieve this one. my application need to do reading the PDF document and want to store the values in Database.Actually what happens is my customers sends me the OCR scanned copied in the form of PDF file. i need to read those scanned pdf files and store the customer information into my table.
i write program in asp.net that this program connect to database frequency and database has very records, i search about solution that i connect to database for one time and another time i use this information and when table records was updated , my program connect to database twice...(for example my program connect to database one time and later when only records was updated ,connect to database...)
My plain texts are image links and pdf URLs from a database table, in groups, in the correct order but I'm not sure how to render them correctly (sample image below shows what I am trying to render)
Is there any way to make a repeater template intelligent enough to render an "image link" OR "pdf link" based off the [type] column returned in the record?
table: pk Name Type (image or pdf) URL Description URL_Thumbnail (if image) GroupId (associate these records to each other) OrderNumber (order of these records within their GroupId)
Server Error in '/AviaBellaVidaChecklist' Application.
Invalid attempt to read when no data is present. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: Invalid attempt to read when no data is present.
I am creating a BLOG and Forum, and am using tags similar to this and most other sites, I just need to know how to retrieve the tags from a culmn if the tags are stored with commas separating them, I am sure I read about it somewhere but was unable to find it.so the column would be:
tag1, tag2, tag3, etc.....
I would need to be able to:
1. Store tags, and add-on to tags already in the column
Invalid attempt to read when no data is present.Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: Invalid attempt to read when no data is present.Source Error:
