Programming Crystal Reports with ASP.NET 2.0 - Providing Login information for the CrystalReportViewer control dynamically
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The CrystalReportViewer control needs to be provided with database logon information to execute and show the report. At the same time, it is a bit awkward to have the database login page displayed for every Crystal Report. No end user likes it (and of course, it is dangerous too!).
To solve this problem, we can provide database logon information to the CrystalReportViewer control dynamically at runtime. The following is the code to achieve the same:
Imports CrystalDecisions.Shared
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles form1.Load
Dim ConnInfo As New ConnectionInfo
With ConnInfo
.ServerName = ".sqlexpress"
.DatabaseName = "Northwind"
.UserID = "sa"
.Password = "eXpress2005"
End With
For Each cnInfo As TableLogOnInfo In Me.CrystalReportViewer1.LogOnInfo
cnInfo.ConnectionInfo = ConnInfo
Next
End Sub
End Class
You must observe that the CrystalDecisions.Shared namespace is added to the top. In the above code, the database connection information is stored in ConnInfo and is defined as follows:
Dim ConnInfo As New ConnectionInfo
With ConnInfo
.ServerName = ".sqlexpress"
.DatabaseName = "Northwind"
.UserID = "sa"
.Password = "eXpress2005"
End With
The above connection information is assigned to CrystalReportViewer control using the following code:
For Each cnInfo As TableLogOnInfo In Me.CrystalReportViewer1.LogOnInfo
cnInfo.ConnectionInfo = ConnInfo
Next
Next: Hiding the toolbar and adding First, Last, Next and Previous page buttons to the report >>
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