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How to Find a row in DataView

The DataView provides different views of the data stored in a DataTable. The constructor for the DataView class initializes a new instance of the DataView class and accepts the DataTable as an argument. We can create DataView in two ways. Either we can use the DataView constructor, or we can create a reference to the DefaultView property of the DataTable. We can create multiple DataViews for any given DataTable.

We can search in a DataView according to the sort key values by using the Find method . The Find method returns an integer with the index of the DataRowView that matches the search criteria. If more than one row matches the search criteria, only the index of the first matching DataRowView is returned. If no matches are found, Find returns -1

Dim index As Integer = DataView.Find("Product5")




Imports System.Data.SqlClient
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim connetionString As String
        Dim connection As SqlConnection
        Dim command As SqlCommand
        Dim adapter As New SqlDataAdapter
        Dim ds As New DataSet
        Dim dv As DataView
        Dim sql As String
		connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password"
        sql = "Select  * from product"
        connection = New SqlConnection(connectionString)
        Try
            connection.Open()
            command = New SqlCommand(sql, connection)
            adapter.SelectCommand = command
            adapter.Fill(ds, "Find Row DataView")
            adapter.Dispose()
            command.Dispose()
            connection.Close()

            dv = New DataView(ds.Tables(0))
            dv.Sort = "Product_Name"
            Dim index As Integer = dv.Find("Product5")

            If index = -1 Then
                MsgBox("Item Not Found")
            Else
                MsgBox(dv(index)("Product_id").ToString() & "  " & dv(index)("Product_Name").ToString())
            End If

        Catch ex As Exception
            MsgBox(ex.ToString)
        End Try
    End Sub
End Class

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