Architecture :: How To Pass Data Between 2 Apps On Different Servers
Feb 23, 2010
i'm facing a problem with transfering data between two web applicatins on two different servers. For example on page A
I have a login box with LoginName textbox and Password textbox and Login button. What I am trying to achieve is that when i press Login button I will transfer data from Login and Password textboxes to page B and .net code on page B will try to validate the logging user. I was trying code like this but it won't works on page A
[Code]....
and on page B in Page_Load event
[Code]....
I was thinking of using Web Service between these apps, however i am not certain that it will works.
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I am developing an application for online examination system. It is 3 - tier application. I know how PL, BLL and DAL layers interact with each other but only one way. I meant, PL called BLL and BLL called DAL. However, recently I came across a scenario where I want to transfer a data from DAL to BLL and from BLL to PL or may be directly from DAL to PL.
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protected void btnGo_Click(object sender, EventArgs e)
{
Users PwdRetrieve = new Users();
PwdRetrieve.EmailAddress = txtEmailRetrive.Text.ToString();
Session["EmailAddress"] = txtEmailRetrive.Text.ToString();
UserBAL balPR = new UserBAL();
if (balPR.CheckEmailPR(PwdRetrieve))
{
Response.Redirect("questionanswer.aspx");
}
else
{
lblErrorMsg1.Text = ("We have not found an Email Address in our databse.");
lblErrorMsg2.Text = ("Please enter a valid Email Address.");
}
}
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public bool CheckEmailPR(Users PwdRetrieve)
{
UserDAL dalPR = new UserDAL();
if (dalPR.CheckEmailPR(PwdRetrieve) > 0)
{
return true;
}
else
{
return false;
}
}
UserDAL.cs:
public int CheckEmailPR(Users PwdRetrieve)
{
int rows = 0;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString2"].ConnectionString))
{
string SP_CHECK_EMAIL = "CheckEmailForPasswordRetrival";
SqlCommand cmd = new SqlCommand(SP_CHECK_EMAIL, conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@Email", SqlDbType.VarChar).Value = PwdRetrieve.EmailAddress;
cmd.Parameters.Add("@rows", SqlDbType.Int);
cmd.Parameters["@rows"].Direction = ParameterDirection.Output;
conn.Open();
rows = Convert.ToInt32(cmd.ExecuteScalar());
rows = (int)cmd.Parameters["@rows"].Value;
conn.Close();
}
return (int)rows;
}
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protected void Page_Load(object sender, EventArgs e)
{
txtAnswer.Focus();
Users QuestionAnswer = new Users();
QuestionAnswer.EmailAddress = (string)Session["EmailAddress"];
UserBAL balQA = new UserBAL();
if (balQA.FetchQuestion(QuestionAnswer))
{
lblQuestion.Text = "Do not know how to assign a fetched question to this lable.";
}
else
{
lblErrorMsgQA.Text = ("Sorry! Please enter a correct answer.");
}
}
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public string FetchQuestion(Users QuestionAnswer)
{
UserDAL dalQA = new UserDAL();
if (dalQA.FetchQuestion(QuestionAnswer) != null)
{
}
else
{
}
}
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public string FetchQuestion(Users QuestionAnswer)
{
string question = string.Empty;
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString2"].ConnectionString))
{
string SP_FETCH_QUESTION = "FetchQuestion";
SqlCommand cmd = new SqlCommand(SP_FETCH_QUESTION, conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@Email", SqlDbType.VarChar).Value = QuestionAnswer.EmailAddress;
conn.Open();
SqlDataReader read = cmd.ExecuteReader();
while (read.Read())
{
question = read["tblSecurityQuestion"].ToString();
}
read.Close();
conn.Close();
}
return question;
}
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DataSourceID="SqlDataSource1" EnableModelValidation="True" DataKeyNames="id" >
<Columns>
<asp:CommandField ShowEditButton="True" />
<asp:BoundField DataField="id" HeaderText="id" InsertVisible="False"
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<asp:TemplateField HeaderText="NAME" SortExpression="NAME">
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</EditItemTemplate>
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<asp:ListItem>FAIL</asp:ListItem>
<asp:ListItem>APPEARED</asp:ListItem>
<asp:ListItem>NOT APPEARED</asp:ListItem>
<asp:ListItem></asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
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[code]....
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