How to create DataSet without Databse
Dataset represents a collection of data retrieved from the Data Source. The DataSet contains DataTableCollection and their DataRelationCollection. The DataTableCollection contains zero or more DataTable objects. The data set may comprise data for one or more members, corresponding to the number of rows. We can fill the data in Dataset without calling SQL statements. For that we manually create a DataTable and add data in it.
Imports System.Data.OleDb Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim ds As New DataSet Dim dt As DataTable Dim dr As DataRow Dim idCoulumn As DataColumn Dim nameCoulumn As DataColumn Dim i As Integer dt = New DataTable() idCoulumn = New DataColumn("ID", Type.GetType("System.Int32")) nameCoulumn = New DataColumn("Name", Type.GetType("System.String")) dt.Columns.Add(idCoulumn) dt.Columns.Add(nameCoulumn) dr = dt.NewRow() dr("ID") = 1 dr("Name") = "Name1" dt.Rows.Add(dr) dr = dt.NewRow() dr("ID") = 2 dr("Name") = "Name2" dt.Rows.Add(dr) ds.Tables.Add(dt) For i = 0 To ds.Tables(0).Rows.Count - 1 MsgBox(ds.Tables(0).Rows(i).Item(0) & " -- " & ds.Tables(0).Rows(i).Item(1)) Next i End Sub End Class
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