ADO.NET :: Reading Values From Data Access Component Individually?
Aug 2, 2010
I am trying to pick data from the database through data access layer and use those values in different text boxes on the page.Basically on a click on the form, modal popup is planned to read the database and put the values into different text boxes which can be latter changed/ updated.
What I am unable to do is accessing those values on the form itself progamatically.
My data access component is as follows:
[Code]....
How do i read these values individually and put them in different boxes!? What I dont want to do is to access these from page's .cs file.
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Here's a short explanation of my asp.net project.
1) the default page loads, it will read the Windows Login of the user opening the page.
2) I'll check if this login exists in a table stored on the webserver.
In this Access Database, there's a 2nd linked table, pointing to another access table on a network location. Now, I want to read data from this linked table. However, at this moment I receive an error:
"The Microsoft Jet database engine cannot open the file '\<ip><shared-folder>statistics.mdb'. It is already opened exclusively by another user, or you need permission to view its data".
Some extra info:
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- the user and group permissions on both access files are set to read/modify/administer for the Admin user (on the tables I want to read from)
- IIS authentication on the server is set to "Windows Authentication" (this is needed so I can read the Windows Login from the user). All other authentication modes are disables (like anonymous, ...)
- When the error occurs, no other program or process has access to the statistics.mdb (so, it can't be locked by someone else)
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<add name="AccessConnectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\<IP><shared-folder>statistics.mdb;User Id=admin; Password=;" />
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Searching for solutions, I discovered the following:
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- even if I connect directly to the table in the network I receive the error. So, I'm pretty sure I don't have sufficient rights to read from this table.
I read that not the Admin user is opening the file, but actually a user called ASP.NET. This user doesn't have the correct rights to do this. However, I'm not sure if this is true.
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Dim con As New SqlConnection(ConfigurationSettings.AppSettings("ConnectionString1"))
Dim cmd As New SqlCommand
Dim sda As New SqlDataAdapter
cmd.CommandType = CommandType.StoredProcedure
cmd.CommandText = "ETendering3"
cmd.Parameters.Add("@item", SqlDbType.NVarChar).Value = txtitem1.Text
cmd.Parameters.Add("@price", SqlDbType.Decimal).Value = txtprice1.Text
cmd.Parameters.Add("@remark", SqlDbType.NVarChar).Value = txtremark1.Text
cmd.Parameters.Add("@consump", SqlDbType.Decimal).Value = txtconsump1.Text
cmd.Parameters.Add("@value", SqlDbType.Decimal).Value = txtvalue1.Text
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Try
con.Open()
DataGrid12.DataSource = cmd.ExecuteReader()
DataGrid12.DataBind()
Finally
con.Close()
End Try
con.Dispose()
cmd.Dispose()
con = Nothing
cmd = Nothing
_______________________________________________________
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[Code]....
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[Code]....
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[Code]....
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[Code]....
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[Code]....
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[code]...
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[Code]....
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