how to insert data in database by using web services

Hi

I am new in web services.

I want to run my login.aspx, i have write web service but actully i got connection error with database so where should i made connection in my project

 

follwing is my login button code

 

protected void ButtonLogin_Click(object sender, EventArgs e)
{
FlexiQService serviceClient = new FlexiQService();
try
{
if (Page.IsValid)
{
if (TextBoxUserId.Text.Trim() != string.Empty & TextBoxPassword.Text != string.Empty)
{
object[] obj = serviceClient.AuthenticateWebUser(TextBoxUserId.Text.Trim(), Encrypt.EncryptPassword(TextBoxPassword.Text.Trim()));
if (obj.Length > 0) //Authenticate
{
string[] parseArray = Parse.ParseObjectArrayToStringArray(obj);
Session["User"] = parseArray;
if ((((string[])Session["User"])[3]).ToLower() == "device")
{
LabelError.Text = ErrorMessage.loginError;
}
else
{
//Redirect to create survey page.
Response.Redirect("~/Web/Home.aspx", false);
}

}
else //Not authenticate
{
LabelError.Text = ErrorMessage.loginError;
}
}
else //If UserId or Password is empty.
{
LabelError.Text = ErrorMessage.loginError1;
}
}
}
catch (WebException)
{
LabelError.Text = ErrorMessage.connectionError;
}
catch (TimeoutException)
{
LabelError.Text = ErrorMessage.connectionError;
}
catch (SqlException)
{
LabelError.Text = ErrorMessage.connectionError;
}
catch (Exception)
{
LabelError.Text = ErrorMessage.connectionError;
}
finally
{
serviceClient.Dispose();
}
} 

 

and this is my web service

 

 

[System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://tempuri.org/AuthenticateWebUser", RequestNamespace="http://tempuri.org/", ResponseNamespace="http://tempuri.org/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
public object[] AuthenticateWebUser(string loginId, string password) {
object[] results = this.Invoke("AuthenticateWebUser", new object[] {
loginId,
password});
return ((object[])(results[0]));
} 

 

 

 And this is error i got:Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.

 

can you please suggest any solution