Imports System.Runtime.InteropServices

Public Class Form1

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim objApp As SolidEdgeFramework.Application = Nothing
        Dim objType As Type = Nothing
        Dim objMatTable As SolidEdgeFramework.MatTable = Nothing
        Dim strLibrary As String = "Materials"
        Dim objDocument As SolidEdgePart.PartDocument = Nothing
        Dim strMaterial As String
        Dim iMatPropIndex As SolidEdgeConstants.MatTablePropIndexConstants
        Dim varGetPropVal As Object = Nothing

        Try
            ' Get SE handle
            objApp = Marshal.GetActiveObject("SolidEdge.Application")

            If objApp Is Nothing Then
                ' Get the type from the Solid Edge ProgID
                objType = Type.GetTypeFromProgID("SolidEdge.Application")
                ' Start Solid Edge
                objApp = Activator.CreateInstance(objType)
                ' Make Solid Edge visible
                objApp.Visible = True
            End If

            ' Get material table object handle
            objMatTable = objApp.GetMaterialTable()
            strMaterial = "Galvanized steel"
            iMatPropIndex = SolidEdgeConstants.MatTablePropIndexConstants.seYieldStress
            varGetPropVal = 225000000.56
            objMatTable.SetMaterialPropValueToLibrary(strMaterial, strLibrary, iMatPropIndex, varGetPropVal)

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

    End Sub

End Class