Custom GridView : The Official Microsoft ASP.NET Forums

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vruk27

Member

6 Points

7 Posts

Custom GridView

Feb 29, 2012 03:11 AM|LINK

Hi All,

I have cretaed Custom Gridview to add new static link button.

Req :

i)Added one property Enable Action links

if this is enabled new colum will add to the grid view.

Column is created but static link inside item template is not displying.

Code :

Public Class StaticLinkColumnTemplate
        Implements System.Web.UI.ITemplate

#Region " Variables "

        Private _id As String
        Private _label As String
        Private WithEvents lnkText As New System.Web.UI.WebControls.LinkButton
#End Region

#Region " Constructor "
        Public Sub New(ByVal id As String, ByVal label As String)
            _id = id
            _label = label
            lnkText.Text = label
        End Sub
#End Region

#Region " ITemplate Members "
        Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements System.Web.UI.ITemplate.InstantiateIn
            ' lnkText = New System.Web.UI.WebControls.LinkButton()
            lnkText.ID = _id
            lnkText.Text = _label
            AddHandler lnkText.Click, AddressOf linkButtonClicked
            container.Controls.Add(lnkText)
        End Sub
#End Region

#Region " Public Changed event "

        Public Event OnClick As EventHandler

        Private Sub linkButtonClicked(ByVal sender As Object, ByVal e As EventArgs)
            RaiseEvent OnClick(sender, e)
        End Sub

#End Region

        Protected Sub lnkText_Bind(ByVal sender As Object, ByVal e As EventArgs) Handles lnkText.DataBinding
            lnkText.Text = _label
            lnkText.Visible = True
        End Sub

    End Class
    Public Class ActionGridView
        Inherits System.Web.UI.WebControls.GridView

#Region " Variables/Constants "

        Private _keyColumn As String
        Private _keyColumnValue As String
        Private _selectionColumnAutoPostBack As Boolean
        Private _enableUserActions As Boolean
        Private _popupPanelID As String
        Private _prowIndex As Integer
        'Private WithEvents selectionTemplate As SelectionColumnTemplate
#End Region

#Region " Constructor "

        Public Sub New()
            MyBase.New()

        End Sub

#End Region

#Region " Public Properties "

        Public Property EnableUserActions() As Boolean
            Get
                Return _enableUserActions
            End Get
            Set(ByVal value As Boolean)
                _enableUserActions = value
            End Set
        End Property



        Public ReadOnly Property SelectionColumnAutoPostBack() As Boolean
            Get
                Return _selectionColumnAutoPostBack
            End Get
        End Property



#End Region

#Region " Public Methods "

        Public Function GetKeyValue(ByVal row As GridViewRow) As String
            If Not String.IsNullOrEmpty(_keyColumn) Then
                Return row.Attributes(_keyColumn)
            Else
                Return String.Empty
            End If
        End Function
#End Region

#Region " Protected Methods "


        Protected Overrides Sub OnDataBound(ByVal e As EventArgs)
            MyBase.OnDataBound(e)
            AddEnableActionsColumn(_enableUserActions)
      
       

        End Sub

        Protected Overrides Sub OnRowDataBound(ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs)
            MyBase.OnRowDataBound(e)
            'If e.Row.RowType = DataControlRowType.DataRow Then
            '    Dim lnkBtn As System.Web.UI.WebControls.LinkButton = New System.Web.UI.WebControls.LinkButton()
            '    Dim behaviorID As String = String.Concat("pce", e.Row.RowIndex)
            '    Dim pce As PopupControlExtender = TryCast(e.Row.FindControl("popupAction"), PopupControlExtender)
            '    pce.BehaviorID = behaviorID
            '    Dim OnMouseOutScript As String = String.Format("$find('{0}').hidePopup();", behaviorID)
            '    Dim OnMouseOverScript As String = String.Format("return CheckDrp('{0}');", behaviorID)
            '    lnkBtn.Attributes.Add("OnClientClick", OnMouseOverScript)
            '    lnkBtn.Attributes.Add("onClick", "return false;")
            '    e.Row.Cells("View Actions").Controls.Add(lnkBtn)
            'End If
        End Sub


        'Protected Overloads Sub OnRowDataBound(ByVal e As GridViewRowEventArgs)
        '    MyBase.OnRowDataBound(e)

        'End Sub

#End Region

#Region " Private Methods "


        Private Sub CreateLinkButtonColumn(ByVal headerText As String)
            Dim linkButtonCol As TemplateField = New TemplateField
            Dim lnkColumnTemplate As StaticLinkColumnTemplate = New StaticLinkColumnTemplate("lnkUserAction", "View Actions")
            AddHandler lnkColumnTemplate.OnClick, AddressOf OnLinkButtonClicked
            linkButtonCol.ItemTemplate = lnkColumnTemplate
            linkButtonCol.InsertItemTemplate = lnkColumnTemplate
            linkButtonCol.HeaderText = headerText
            linkButtonCol.ItemStyle.CssClass = "text"
            linkButtonCol.HeaderStyle.CssClass = "text"
            Me.Columns.Add(linkButtonCol)
        End Sub

        Private Sub AddEnableActionsColumn(ByVal value As Boolean)
            If value Then
                CreateLinkButtonColumn("View Actions")

            Else
                'TBD:
            End If
        End Sub

#End Region

#Region " Public Changed event "

        Public Event SelectionChanged As EventHandler

        Private Sub SelectedRowChanged(ByVal sender As Object, ByVal e As EventArgs)
            RaiseEvent SelectionChanged(sender, e)
        End Sub

        Public Event LinkButtonClick As EventHandler

        Private Sub OnLinkButtonClicked(ByVal sender As Object, ByVal e As EventArgs)
            RaiseEvent LinkButtonClick(sender, e)
        End Sub
#End Region

    End Class

Marked as answer by vruk27 on Jul 17, 2012 08:54 AM

Reply

peacock339

Member

22 Points

6 Posts

Re: Custom GridView

Feb 29, 2012 04:22 AM|LINK

hope this help

http://www.aspdotnetwork.com/2011/10/insertupdatedelete-in-gridview.html

www.aspdotnetwork.com

Reply

vruk27

Member

6 Points

7 Posts

Re: Custom GridView

Feb 29, 2012 12:11 PM|LINK

This is not the one i am expecting...

The same req in 70 grid pages so planing to create Custom gridview control.

Reply

duzi

Member

355 Points

90 Posts

Re: Custom GridView

Feb 29, 2012 12:19 PM|LINK

why r u using label and not a link control? even if u want it to look like a label or image, you have to add a link control - that can navigate you...

Is that what you wanted?

I'm sorry' I missed few lines.

Did you try to put public instead of private?