Web Forms :: ExecuteScalar Requires Open And Available Connection
May 7, 2015
ExecuteScalar requires an open and available Connection. The connection's current state is closed.
namespace ITS_Group{ public partial class Login : System.Web.UI.Page {
private DataTable GetData(SqlCommand cmd) {
DataTable dt = new DataTable();
String strConnString = System.Configuration.ConfigurationManager.ConnectionStrings[1].ConnectionString;
SqlConnection con = new SqlConnection(strConnString);
[CODE]..
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Sep 13, 2010
I'm using Visual Studio 2008, and my database is SQL Server 2000.
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But when I click OK, I get the error:
Unable to add data connection. ExecuteScalar requires an open and available connection. The connection's current state is closed.
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Feb 25, 2016
Some time i getting error below ,but i am did'nt used excutereader
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This my code,
try { if (con.State != ConnectionState.Open) con.Open(); string result;
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[Code] ....
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May 7, 2015
I would like to ask why I encounter this error when multiple user accessing in my online page.
Here is the error message.
Execute Reader requires an open and available Connection's current state is connecting.
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Feb 4, 2010
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Here's the codes I use:
[Code]....
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[code]....
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Oct 11, 2012
I am created a from sending mails. I have tried ur code.. But I am getting under error.
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Jan 12, 2011
i'm trying to send email through gmail account
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[Code]....
and my code :
[Code]....
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Jun 16, 2015
How to fix this error,
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[URL].....
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Apr 2, 2010
I have used vs 2008 to develop an asp.net application.
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Apr 14, 2013
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[Code] ....
I am getting error The connection was not closed. The connection's current state is open.
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Aug 31, 2010
I have problems connecting to my database server. The database server is not local, I am connected via its IP address. It works fine in my development machine. After publishing the website to my server, it can not connect to my database server. A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)Why can't my publish server connect to the database server, whereas it works fine through the development machine?
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When should i open and close the database connection.and which are best data classes (for e.g dataset, datatable etc) should i use when connection is open or close.
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Oct 6, 2012
I use below code for my button event
int Result = _cmd.ExecuteNonQuery();
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But it didn't work it didn't go to managers.aspx page but when I replace code with below code it worked correctly it go to managers.aspx
int count = Convert.ToInt32(_cmd.ExecuteScalar());
if (count > 0)
{
Session["Login"] = true;
Response.Redirect("Managers.aspx?BehCode=" + Server.UrlEncode(Txtbeh.Text));
}
Why this happen whats exact different between two code?
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Sep 2, 2010
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this is general to any operation calling an SQL server, or anything requiring an open connection at that.Say I have anywhere from 20 to 1000 Select calls to make for each item in data being looped. For each step, I'll select from sql, store data locally in a struct, then proceed. This is not a very expensive call, so should I keep the connection open for the entire loop? Or should I open and close every step? How expensive in run time is opening a connection? I would think it'd be better to keep the connection open, but would like to get the correct response for this.
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Nov 5, 2010
Using vb.net 2005
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what I have now:
[Code]....
on the Open line i'm getting a squiggly error saying "declaration expected" for the MyCon.Open.
do I need to import something?
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