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QuestionRow Filter Pin
anushh18-Sep-09 8:48
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AnswerRe: Row Filter Pin
Manas Bhardwaj18-Sep-09 9:41
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Abhishek Sur18-Sep-09 11:37
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Abhishek Sur18-Sep-09 11:48
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Manas Bhardwaj18-Sep-09 11:54
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Abhishek Sur18-Sep-09 11:58
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Questionfilter datagrid rows nested within datalist Pin
janetb9918-Sep-09 7:46
Memberjanetb9918-Sep-09 7:46 
I had a setup where I had a datalist of course listings, and when the items were created I went out to a remote sql server and retrieved the faculty for each course. But, that seems to take too long to load, so I thought it would be faster to go get all the data at once on page load and then filter with data views. But, I can't seem to get there. I tested on a datagrid outside the datalist and it populates with 3 rows fine. (Number one - is my assumption correct? Number two - what am I doing wrong? Is the Public Data.dataView not available when I'm trying to call it?)

It stops on the line
'dv.RowFilter = "eid=" & myEID.ToString

with the error: Object reference not set to an instance of an object.

If I comment out the line, I get no datagrids.

Imports dsList
Partial Class orpce_hcClasses
    Inherits System.Web.UI.Page
    Public ds As New Data.DataSet
    Public myFacView As Data.DataView
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not Page.IsPostBack Then
            Dim myList As dsSql = New dsSql()   ''''instantiate the function to get dataset
            Dim myView As Data.DataView
            Dim myStr As String = ""
            ds = myList.dsListAll(go get the initial course datalist dataset)
            If ds.Tables("list").Rows.Count > 0 Then
                myView = ds.Tables("list").DefaultView
                dlList.DataSource = myView
                myView.Sort = "startSort"
                If ds.Tables("list").Rows.Count > 0 Then
                    Dim i As Integer
                    For i = 0 To ds.Tables("list").Rows.Count - 1
                        myStr &= ds.Tables("list").Rows(i)("eid").ToString & ","
                    myStr = Left(myStr, Len(myStr) - 1)
                End If
                ds = myList.dsListFac(myStr)
                myFacView = New Data.DataView
                myFacView = ds.Tables("faculty").DefaultView
            End If
        End If
    End Sub

    Protected Sub dlList_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles dlList.ItemDataBound
        Dim myEID As String = Convert.ToInt32(CType(e.Item.FindControl("txtEID"), TextBox).Text)
        Dim dv As Data.DataView
        Dim dg As DataGrid = CType(e.Item.FindControl("dgFac"), DataGrid)
        dv = myFacView
        'dv.RowFilter = "eid=" & myEID.ToString
        dg.DataSource = dv
    End Sub

Questionmaintaining session Pin
laziale18-Sep-09 6:41
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AnswerRe: maintaining session Pin
Christian Graus18-Sep-09 11:38
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QuestionDefault Positioning Pin
Alireza Loghmani18-Sep-09 4:11
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AnswerRe: Default Positioning Pin
sashidhar18-Sep-09 5:42
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Questionproblems with webservices Pin
shankbond18-Sep-09 3:40
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shankbond21-Sep-09 1:22
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QuestionLooping to find LoginView controls Pin
NoirWD18-Sep-09 3:34
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QuestionDatatable Concatination Pin
sekannak18-Sep-09 2:56
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QuestionExport to Excel Pin
arkiboys18-Sep-09 2:52
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Arun Jacob18-Sep-09 2:57
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arkiboys18-Sep-09 3:53
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AnswerRe: Export to Excel Pin
Abhishek Sur18-Sep-09 5:23
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QuestionError while transferring data to Excel Pin
nagendrathecoder18-Sep-09 2:04
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