Modify asp.net dataSet from Code

Discussion in 'ASP.NET 2.0' started by findcausene, Jul 2, 2008.

  1. findcausene

    findcausene chas28

    I need help in using code to modify the data in a dataset.
    The code I am using is:
    ------------------------------------------------------------------------------------------------------------------------------------------ '-- Open a database connection</o:p>
    Dim DBConnection As New OleDbConnection( _</o:p>
    "Provider=Microsoft.Jet.OLEDB.4.0;" &amp; _</o:p>
    "Data Source=" &amp; Server.MapPath("~/app_data/capsDb1.mdb"))</o:p>
    DBConnection.Open()</o:p>
    </o:p>
    '-- Issue an SQL command through the database connection</o:p>
    Dim SQLString As String</o:p>
    ' SQLString = "SELECT CID, SID, [Investigation Title], [Date Accessed] FROM [Status Table] ORDER BY SID"</o:p>
    SQLString = "SELECT [Questions Table].QTPriority, [AI Questions Table].AIID, [AI Questions Table].Question, [AI Questions Table].Rationale FROM ((([AI Questions Table] INNER JOIN [Questions Table] ON [AI Questions Table].AIID = [Questions Table].AIID) INNER JOIN [Status Table] ON [Questions Table].SID = [Status Table].SID) INNER JOIN [Characteristics Table] ON [Status Table].CID = [Characteristics Table].CID) WHERE ([Characteristics Table].Defect = 'Dissolution') ORDER BY [AI Questions Table].AIID Desc"</o:p>
    Dim DBCommand As New OleDbCommand(SQLString, DBConnection)</o:p>
    </o:p>
    'set up DataSet and DataAdapter</o:p>
    Dim myDataSet As New DataSet</o:p>
    </o:p>
    Dim myDataAdapter As OleDbDataAdapter</o:p>
    myDataAdapter = New OleDbDataAdapter(DBCommand)</o:p>
    myDataAdapter.Fill(myDataSet)</o:p>
    </o:p>
    Response.Write(myDataAdapter("Question"))</o:p>
    </o:p>
    'bind the dataSet to the GridView</o:p>
    GridView1.DataSource = myDataSet</o:p>
    GridView1.DataBind()</o:p>
    </o:p>
    DBConnection.Close()</o:p>
    -----------------------------------------------------------------------------
    The error message I get is
    ------------------------------------------------------------------------------------------------------------------------------------
    Server Error in '/WebSite10' Application. </o:p>



    Compilation Error </o:p>
    Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

    Compiler Error Message: BC30367: Class 'System.Data.OleDb.OleDbDataAdapter' cannot be indexed because it has no default property.

    Source Error:</o:p>






    </o:p>
    Line 30: myDataAdapter.Fill(myDataSet)</o:p>
    Line 31: </o:p>
    Line 32: Response.Write(myDataAdapter("Question"))</o:p>
    Line 33: </o:p>
    Line 34: 'bind the dataSet to the GridView</o:p>
    </o:p>
    If I change Line 32 to read myDataSet.?Question?) = ?XXX? I get the same error. What can I do that will let me modify data in the various columns? Any help will be appreciated as this has stumped me for some time.
    Thanks in advance.
    Charlie
     

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