October 10, 2008 03:42pm pdt

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	[x] Attachment Details

Updating DataGridView From SQL Server Using Visual Basic 2005

[x]

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9.3

Zones: Microsoft Visual Studio Express, Microsoft Visual Basic.Net, Visual Studio

Tags: Visual Basic .NET

Hello,

I am new to VB, and trying to figure out the best way display database (MS SQL server 2005) information in a program (probably inside datagridview's). I found this code snippet, which seems to work well enough. But when I attempt to use it to 'save' information to the data it generates the error 'Update requires a valid UpdateCommand when passed DataRow collection with modified rows.'. From my reading it seems that the table adapter doesn't have enough info to generate the update command from the select statement. The select is 'SELECT * FROM dbo.people'. I have already ensured that Visual Studio knows about the table and its relationships by adding all of that information (regarding primary keys, FK's, etc) into the appropriate areas (I even completed the diagrams).

Is there a way to update some part of this so that it can automatically generate and then execute the update commands?

Thanks all,

Rob

         
           
           
             Public Class Form1
    Dim connectionString As String = "server=192.168.1.15;uid=sa;pwd=;database=emp_review_data"
    Dim myDataSet As DataSet
    Dim myDataAdapter As SqlDataAdapter
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim commandString As String = "Select name, empNum from reviewData" ' empNum is unique identifier
        myDataAdapter = New SqlDataAdapter(commandString, connectionString)
        myDataSet = New DataSet()
        myDataAdapter.Fill(myDataSet, "reviewData")
        Me.DataGridView1.DataSource = myDataSet.Tables("reviewData")
    End Sub
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        myDataAdapter.Update(myDataSet, "reviewData")
    End Sub
End Class

           
         

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