Imports System.Web.Configuration

Partial Public Class SegmentList
	Inherits System.Web.UI.Page

	Private Shared intDateColumn As Integer
	Private Shared dblRows As Double = 0
	Private Shared strGVFilter As String = ""

	Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
		If Not Page.IsPostBack Then dblRows = 0

		lblMessage.Text = ""
	End Sub

	Private Sub Page_LoadComplete(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.LoadComplete

		If Not Page.IsPostBack Then
			Dim arrFilter(0) As String
			Dim intStart, intEnd As Integer
			intDateColumn = gvSegment.Columns.Count - 2

			gvSegment.PageSize = WebConfigurationManager.AppSettings("PAGESIZE")
			If WebConfigurationManager.AppSettings("ULEVEL") <> 5 Then
				btnAdd1.Enabled = False
				btnAdd2.Enabled = False
			End If

			If WebConfigurationManager.AppSettings("strPage") = "SegmentDetails" Then

				If WebConfigurationManager.AppSettings("ShowMore") = True Then
					gvSegment.PageSize = WebConfigurationManager.AppSettings("MAXPAGESIZE")
				End If

				gvSegment.PageIndex = WebConfigurationManager.AppSettings("intListIndex")
				strGVFilter = WebConfigurationManager.AppSettings("intListFilter")
				Try
					arrFilter(0) = strGVFilter.Replace(" AND ", Chr(31))
					arrFilter = arrFilter(0).Split(Chr(31))
					For i As Integer = 1 To arrFilter.Length - 1
						If arrFilter(i).Contains("strSegment") Then
							intStart = arrFilter(i).LastIndexOf("'%")
							intEnd = arrFilter(i).LastIndexOf("%'")
							'ddlStatus.SelectedValue = arrFilter(i).Substring(arrFilter(i).IndexOf("=")).Trim
							txtSegment.Text = arrFilter(i).Substring(intStart + 2, intEnd - intStart - 2)
						End If
					Next

					sdsSegment.FilterExpression = strGVFilter
          'Exit Sub
				Catch ex As Exception

				End Try

			End If

			btnSearch_Click(sender, e)
		End If

		dblRows = gvSegment.PageIndex * gvSegment.PageSize		 '< has to run for every action				
	End Sub

	Private Sub Page_PreRenderComplete(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRenderComplete
		Dim s As String = ""

		btnExport.Enabled = True

		If strGVFilter.Length > 0 Then s = "WHERE " & strGVFilter
		If sqlDB.CountRows("SELECT SegmentID FROM mstSegment " & s) = 0 Then
			lblMessage.Text = "<div width='100%' align='center'>- No Segments found -</div>"
			btnExport.Enabled = False
		End If
	End Sub

	Private Sub gvSegment_Sorting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewSortEventArgs) Handles gvSegment.Sorting
		sdsSegment.FilterExpression = strGVFilter
		dblRows = 0
	End Sub

	Private Sub gvSegment_PageIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles gvSegment.PageIndexChanged
		sdsSegment.FilterExpression = strGVFilter
		WebConfigurationManager.AppSettings("intListIndex") = gvSegment.PageIndex
	End Sub

	Private Sub gvSegment_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvSegment.RowDataBound

		If e.Row.RowType = DataControlRowType.DataRow Then

			Dim btnDelete As LinkButton = CType(e.Row.Cells(e.Row.Cells.Count - 1).Controls(0), LinkButton)
			If WebConfigurationManager.AppSettings("ULEVEL") = 5 Then
				btnDelete.OnClientClick = String.Format("return confirm('Are you certain you want to delete Segment ""{0}"" ?');", _
				 DirectCast(DirectCast(e.Row.Cells(1).Controls(0), System.Web.UI.Control), System.Web.UI.WebControls.HyperLink).Text)
				'might need to change e.Row.Cells(1).Controls(0) if using inGridEdit
			Else
				btnDelete.Enabled = False
			End If
			Try
				dblRows += 1
				e.Row.Cells(0).Text = dblRows
				e.Row.Cells(intDateColumn).Text = sqlDB.SqlDate(e.Row.Cells(intDateColumn).Text, "d MMM yyyy")	' "d MMM yyyy HH:mm")
			Catch ex As Exception
				e.Row.Cells(intDateColumn).Text = Date.Now.ToString("n/a")
			End Try
		End If
	End Sub

	Private Sub gvSegment_RowDeleting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewDeleteEventArgs) Handles gvSegment.RowDeleting
		Dim intRows As Integer = 0
		lblMessage.Text = ""
		intRows += sqlDB.CountRows("SELECT strCustomerNo FROM dwdCustomer WHERE strSegment = '" & e.Keys(1) & "' ")
		intRows += sqlDB.CountRows("SELECT RepID FROM mstRep WHERE refSegmentID = " & e.Keys(0))
		intRows += sqlDB.CountRows("SELECT ChannelID FROM mstChannel WHERE refSegmentID = " & e.Keys(0))

		If intRows > 0 Then
			lblMessage.Text = "<div width='100%' align='right'>Unable to delete segment '" & e.Keys(1) & "': Segment is in use</div>"
			e.Cancel = True
		Else
			e.Cancel = False
			btnSearch_Click(sender, e:=New System.EventArgs())
		End If
	End Sub

	Protected Sub btnSearch_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSearch.Click
		sdsSegment.FilterExpression = "1=1"
		dblRows = 0

		Dim s As String

		If txtSegment.Text.Length > 0 Then
			s = sqlDB.CleanString(txtSegment.Text.Trim)
			sdsSegment.FilterExpression &= " AND strSegment LIKE '%" & s & "%'"
		End If
		
		strGVFilter = sdsSegment.FilterExpression
		WebConfigurationManager.AppSettings("intListFilter") = strGVFilter

	End Sub

	Protected Sub btnAdd_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnAdd1.Click, btnAdd2.Click
		Response.Redirect("SegmentDetails.aspx?SID=0")
	End Sub

	Protected Sub btnExport_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnExport.Click
		sdsSegment.FilterExpression = strGVFilter
		gvExport.Visible = True

		Response.Clear()
		Response.Buffer = True
		Response.ContentType = "application/vnd.ms-excel"
		Response.Charset = ""
      Response.AddHeader("Content-Disposition", _
       "attachment;filename=SegmentList_" & Session.Item("User").Replace(" ", "") & "_" & Date.Today.ToString("yyyyMMdd") & ".xls") 'v1.4.5 - 20160913 - Fixed logged In user & savings (i.e use session instead) - maanie
		Me.EnableViewState = False

		Dim oStringWriter As New System.IO.StringWriter()
		Dim oHtmlTextWriter As New System.Web.UI.HtmlTextWriter(oStringWriter)
		Dim frm As HtmlForm = New HtmlForm()
		Me.Controls.Add(frm)
		frm.Controls.Add(gvExport)
		frm.RenderControl(oHtmlTextWriter)
		Response.Write(oStringWriter.ToString())

		gvExport.Visible = False

		Response.End()
	End Sub

	Protected Sub chkResize_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs) Handles chkResize.CheckedChanged
		gvSegment.PageIndex = 0
		sdsSegment.FilterExpression = strGVFilter
		If chkResize.Checked Then
			gvSegment.PageSize = WebConfigurationManager.AppSettings("MAXPAGESIZE")
			WebConfigurationManager.AppSettings("ShowMore") = True
		Else
			gvSegment.PageSize = WebConfigurationManager.AppSettings("PAGESIZE")
			WebConfigurationManager.AppSettings("ShowMore") = False
		End If
	End Sub

End Class