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  • J John Kuhn

    Sorry, :(( My brain ceased to function on this one. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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    terjk
    wrote on last edited by
    #24

    There must be something that links them together right? If not how come with the same code and just he change of checkbox codes, everything can't work??? Im going crazy soon.. Have been trying several ways..

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    • T terjk

      There must be something that links them together right? If not how come with the same code and just he change of checkbox codes, everything can't work??? Im going crazy soon.. Have been trying several ways..

      J Offline
      J Offline
      John Kuhn
      wrote on last edited by
      #25

      Well, yes... I'm not certain which snippet you're referring to, but in general, bear in mind that you're writing code that responds to particular events and each control event is independent of others on the same page, except for the page level events, that fire each time the page loads or posts. So, if, for example, I write an event handler for a button that creates a checkbox dynamically and stores some indication of that in Session, and later on I write an event handler that responds to the click event of another control that also dynamically creates something, I have to store some other indicator of that in Session as well, and so on, for each thing that I do. Do you see? If need be, I can point to the places in MSDN that describe the sequence of events and ASP session or state management. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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      • J John Kuhn

        Well, yes... I'm not certain which snippet you're referring to, but in general, bear in mind that you're writing code that responds to particular events and each control event is independent of others on the same page, except for the page level events, that fire each time the page loads or posts. So, if, for example, I write an event handler for a button that creates a checkbox dynamically and stores some indication of that in Session, and later on I write an event handler that responds to the click event of another control that also dynamically creates something, I have to store some other indicator of that in Session as well, and so on, for each thing that I do. Do you see? If need be, I can point to the places in MSDN that describe the sequence of events and ASP session or state management. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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        terjk
        wrote on last edited by
        #26

        Now I can leave out the dynamic checkboxes. Will be using checkboxlist instead (which can wotk with the dynamic imagebutton the previous time), so i guess this wouldn't be much of a problem as compare to the dynamic checkbox, am i right? However, I got to run the weekly form before i can click the button of the daily? Page load If Not Session("ButtonCreated") Is Nothing Then buttoncreated = CType(Session("ButtonCreated"), Boolean) Else buttoncreated = False End If If IsPostBack And buttoncreated Then createCalendar() End If private sub createcalendar() imgholi.ID = rid imgholi.ImageUrl = Server.MapPath("Pics\pencil.gif") AddHandler imgholi.Click, AddressOf ImageClickHandler cellleft.Controls.Add(imgholi) buttoncreated = True Session("ButtonCreated") = buttoncreated i have 3 calendars(Daily, weekly, monthly). If i were to select the daily calendar and click on the imagebtn, the table refreshes unless i select the weekly calendar and click the imgbtn. why?

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        • J John Kuhn

          Well, yes... I'm not certain which snippet you're referring to, but in general, bear in mind that you're writing code that responds to particular events and each control event is independent of others on the same page, except for the page level events, that fire each time the page loads or posts. So, if, for example, I write an event handler for a button that creates a checkbox dynamically and stores some indication of that in Session, and later on I write an event handler that responds to the click event of another control that also dynamically creates something, I have to store some other indicator of that in Session as well, and so on, for each thing that I do. Do you see? If need be, I can point to the places in MSDN that describe the sequence of events and ASP session or state management. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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          terjk
          wrote on last edited by
          #27

          BIG BIG PROBLEM! Any idea what error is this? An error has occurred because a control with auto-generated id '_ctl4' could not be located to raise a postback event. To avoid this error, explicitly set the ID property of controls that raise postback events. When the page is loaded the first time, everything is fine. However, when i click next, to show other day of the event calendar, It create TWO calendars instead of 1. Why is this so? Dim buttoncreated As Boolean = CType(Session("ButtonCreated"), Boolean) If IsPostBack Then If Not buttoncreated Then createCalendar() End If End If Session("ButtonCreated") = buttoncreated (in page load) Public Sub createCalendar() If Not statuscheck = 0 Then Dim img As New ImageButton img.ID = rid Session.Add("ButtonClick", imgResource) AddHandler img.Click, AddressOf ImageClickHandler img.ImageUrl = Server.MapPath("Pics\pencil.gif") cellleft.Controls.Add(img) row.Controls.Add(cellleft) buttoncreated = True Session("ButtonCreated") = buttoncreated createcalendar() is called each time user click on BUTTON GO.

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          • J John Kuhn

            Well, yes... I'm not certain which snippet you're referring to, but in general, bear in mind that you're writing code that responds to particular events and each control event is independent of others on the same page, except for the page level events, that fire each time the page loads or posts. So, if, for example, I write an event handler for a button that creates a checkbox dynamically and stores some indication of that in Session, and later on I write an event handler that responds to the click event of another control that also dynamically creates something, I have to store some other indicator of that in Session as well, and so on, for each thing that I do. Do you see? If need be, I can point to the places in MSDN that describe the sequence of events and ASP session or state management. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

            T Offline
            T Offline
            terjk
            wrote on last edited by
            #28

            BIG BIG PROBLEM! Any idea what error is this? An error has occurred because a control with auto-generated id '_ctl4' could not be located to raise a postback event. To avoid this error, explicitly set the ID property of controls that raise postback events. When the page is loaded the first time, everything is fine. However, when i click next, to show other day of the event calendar, It create TWO calendars instead of 1. Why is this so? Dim buttoncreated As Boolean = CType(Session("ButtonCreated"), Boolean) If IsPostBack Then If Not buttoncreated Then createCalendar() End If End If Session("ButtonCreated") = buttoncreated (in page load) Public Sub createCalendar() If Not statuscheck = 0 Then Dim img As New ImageButton img.ID = rid Session.Add("ButtonClick", imgResource) AddHandler img.Click, AddressOf ImageClickHandler img.ImageUrl = Server.MapPath("Pics\pencil.gif") cellleft.Controls.Add(img) row.Controls.Add(cellleft) buttoncreated = True Session("ButtonCreated") = buttoncreated createcalendar() is called each time user click on BUTTON GO.

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            • J John Kuhn

              Well, yes... I'm not certain which snippet you're referring to, but in general, bear in mind that you're writing code that responds to particular events and each control event is independent of others on the same page, except for the page level events, that fire each time the page loads or posts. So, if, for example, I write an event handler for a button that creates a checkbox dynamically and stores some indication of that in Session, and later on I write an event handler that responds to the click event of another control that also dynamically creates something, I have to store some other indicator of that in Session as well, and so on, for each thing that I do. Do you see? If need be, I can point to the places in MSDN that describe the sequence of events and ASP session or state management. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

              T Offline
              T Offline
              terjk
              wrote on last edited by
              #29

              What is the cause for this error? I have assigned a unique ID to each controls. An error has occurred because a control with auto-generated id '_ctl26' could not be located to raise a postback event. To avoid this error, explicitly set the ID property of controls that raise postback events. How i can get the value of which iamgebutton is click. i need to pass the value to another form when click.

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              • J John Kuhn

                Right... well... hmmm... The code I gave you was fairly generalized and not particularly optimized to a particular implementation. Therefore, it is difficult to characterize what you've shown here as "right" or "wrong". If anything, I'd refactor and simplify as much as possible:

                Protected checkboxExists As Boolean
                Protected buttonExists As Boolean

                Private Sub Page_Load(...) ...
                If IsPostBack Then
                Dim checkboxExists As Boolean = CType(Session("Checkbox"), Boolean)
                Dim buttonExists As Boolean = CType(Session("ButtonCreated"), Boolean)
                If checkboxExists Then
                createCheckBox()
                End If
                If buttonExists Then
                createCalendar()
                End If
                End If
                Session("CheckBox") = checkboxExists
                Session("ButtonCreated") = buttonExists
                End Sub

                This is normally the point at which it becomes increasingly difficult to impart any significant advice, unless there is something specific that is terribly wrong; at this point, you have to {code, test, debug} as many times as it takes to get it right. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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                terjk
                wrote on last edited by
                #30

                If Not Session("ButtonCreated") Is Nothing Then buttoncreated = CType(Session("ButtonCreated"), Boolean) Else buttoncreated = False End If If IsPostBack And buttoncreated Then ' calEvent_DayRender() ' createcalendar() End If How can i apply this to monthly calendar? i make sure of the calendar control method-dayrender. I cant possible just code the sub just like what i did for the other calendar -createcalendar()

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                • T terjk

                  If Not Session("ButtonCreated") Is Nothing Then buttoncreated = CType(Session("ButtonCreated"), Boolean) Else buttoncreated = False End If If IsPostBack And buttoncreated Then ' calEvent_DayRender() ' createcalendar() End If How can i apply this to monthly calendar? i make sure of the calendar control method-dayrender. I cant possible just code the sub just like what i did for the other calendar -createcalendar()

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                  John Kuhn
                  wrote on last edited by
                  #31

                  Which part -- the DayRender event or the CreateCalendar method or the setting of a session variable to indicate something already done? What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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                  • T terjk

                    What is the cause for this error? I have assigned a unique ID to each controls. An error has occurred because a control with auto-generated id '_ctl26' could not be located to raise a postback event. To avoid this error, explicitly set the ID property of controls that raise postback events. How i can get the value of which iamgebutton is click. i need to pass the value to another form when click.

                    J Offline
                    J Offline
                    John Kuhn
                    wrote on last edited by
                    #32

                    When you create a control, give it an ID. When you re-create it, give it the same ID. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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                    • J John Kuhn

                      Which part -- the DayRender event or the CreateCalendar method or the setting of a session variable to indicate something already done? What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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                      terjk
                      wrote on last edited by
                      #33

                      The DayRender event. The imagebuttons are created in this event. So what can i do so i can call this on isPostBack. Like what I have before is the createcalendar() which can be apply to postback and creating the calendar on first load.

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                      • J John Kuhn

                        Which part -- the DayRender event or the CreateCalendar method or the setting of a session variable to indicate something already done? What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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                        terjk
                        wrote on last edited by
                        #34

                        The part on creating the dynamic button on page postback. The day_render is an event unlike the createcalendar() where i can place it anywhere. day_render require parameter

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                        • T terjk

                          The DayRender event. The imagebuttons are created in this event. So what can i do so i can call this on isPostBack. Like what I have before is the createcalendar() which can be apply to postback and creating the calendar on first load.

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                          John Kuhn
                          wrote on last edited by
                          #35

                          Right, I'd try the same thing. So, you would have one method callable from wherever you choose that would create a new image button in a container:

                          Private Function CreateImageButton(...) As ImageButton
                          ' ...
                          End Function

                          Private Sub Calendar_DayRender(...) Handles Calendar.DayRender
                          ' ...
                          e.Controls.Add(CreateImageButton(...))
                          End Sub

                          Private Sub ReCreateImageButtons(...)
                          For i As Integer = 1 To MyNumberOfControls
                          something.Controls.Add(CreateImageButton(...))
                          Next
                          End Sub

                          Of course, this is just a rough sketch... I don't have enough time right now to write real code and make sure that it works. I wrote this in the "Text" window of CodeProject, not in VS or anything... What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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                          • T terjk

                            The part on creating the dynamic button on page postback. The day_render is an event unlike the createcalendar() where i can place it anywhere. day_render require parameter

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                            J Offline
                            John Kuhn
                            wrote on last edited by
                            #36

                            So, also try creating new values in Session() that indicate whether or not another something or other has already been created and needs to be recreated on post-back. What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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                            • J John Kuhn

                              Right, I'd try the same thing. So, you would have one method callable from wherever you choose that would create a new image button in a container:

                              Private Function CreateImageButton(...) As ImageButton
                              ' ...
                              End Function

                              Private Sub Calendar_DayRender(...) Handles Calendar.DayRender
                              ' ...
                              e.Controls.Add(CreateImageButton(...))
                              End Sub

                              Private Sub ReCreateImageButtons(...)
                              For i As Integer = 1 To MyNumberOfControls
                              something.Controls.Add(CreateImageButton(...))
                              Next
                              End Sub

                              Of course, this is just a rough sketch... I don't have enough time right now to write real code and make sure that it works. I wrote this in the "Text" window of CodeProject, not in VS or anything... What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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                              terjk
                              wrote on last edited by
                              #37

                              But mine day render code make use of the parameter e. Private Sub calEvent_DayRender(ByVal sender As System.Object, ByVal e As System.Web.UI.WebControls.DayRenderEventArgs) Handles calEvent.DayRender Dim yr As Integer = lblyear.Text Dim r As String 'lblmthSelect.Text = "3" Dim mth As String = lblmthSelect.Text Dim countloop As Integer = 0 Dim imgicon As System.Web.UI.WebControls.Image e.Day.IsSelectable = False If e.Day.IsOtherMonth Then e.Cell.Controls.Clear() e.Cell.Dispose() End If lblInstructions.Visible = False ' calEvent.Visible = True Dim i, j, num, k, b As Integer Dim rname As String Dim bkresource, bkInfo As DataSet Dim own As DataSet Dim txt As String Dim starting As Integer For i = 0 To cbxlistResource.Items.Count - 1 If cbxlistResource.Items(i).Selected = True Then countloop += 1 Dim number As Integer = 0 Dim row As New TableRow Dim cellleft As New TableCell Dim cellright As New TableCell Dim lblnametxt As New Label Dim divlbl As New Label rname = cbxlistResource.Items(i).Text Dim rstart As New Regex("~") Dim mstart As Match = rstart.Match(rname) If mstart.Success Then starting = mstart.Index.ToString() End If Dim totlen As Integer = rname.Length - starting Dim result As String = rname.Substring(starting, totlen) Dim totfinal As Integer = result.Length - 2 Dim finalresult As String = result.Substring(2, totfinal) Dim name As String = eresource.remove(finalresult, "(") Dim rID As String = eresource.getResourceID(name) '============= to retrieve resource owned by =============== own = eresource.getresourceownby(rID) For k = 0 To own.Tables(0).Rows.Count - 1 Dim ownccode As String = own.Tables(0).Rows(k).Item(0) Dim ownCname As String = eresource.getCNameByCC(ownccode) Dim ownDiv As String = own.Tables(0).Rows(k).Item(1) Dim resourcename As String = own.Tables(0).Rows(k).Item(2) txt = " " & ownCname

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                              • T terjk

                                But mine day render code make use of the parameter e. Private Sub calEvent_DayRender(ByVal sender As System.Object, ByVal e As System.Web.UI.WebControls.DayRenderEventArgs) Handles calEvent.DayRender Dim yr As Integer = lblyear.Text Dim r As String 'lblmthSelect.Text = "3" Dim mth As String = lblmthSelect.Text Dim countloop As Integer = 0 Dim imgicon As System.Web.UI.WebControls.Image e.Day.IsSelectable = False If e.Day.IsOtherMonth Then e.Cell.Controls.Clear() e.Cell.Dispose() End If lblInstructions.Visible = False ' calEvent.Visible = True Dim i, j, num, k, b As Integer Dim rname As String Dim bkresource, bkInfo As DataSet Dim own As DataSet Dim txt As String Dim starting As Integer For i = 0 To cbxlistResource.Items.Count - 1 If cbxlistResource.Items(i).Selected = True Then countloop += 1 Dim number As Integer = 0 Dim row As New TableRow Dim cellleft As New TableCell Dim cellright As New TableCell Dim lblnametxt As New Label Dim divlbl As New Label rname = cbxlistResource.Items(i).Text Dim rstart As New Regex("~") Dim mstart As Match = rstart.Match(rname) If mstart.Success Then starting = mstart.Index.ToString() End If Dim totlen As Integer = rname.Length - starting Dim result As String = rname.Substring(starting, totlen) Dim totfinal As Integer = result.Length - 2 Dim finalresult As String = result.Substring(2, totfinal) Dim name As String = eresource.remove(finalresult, "(") Dim rID As String = eresource.getResourceID(name) '============= to retrieve resource owned by =============== own = eresource.getresourceownby(rID) For k = 0 To own.Tables(0).Rows.Count - 1 Dim ownccode As String = own.Tables(0).Rows(k).Item(0) Dim ownCname As String = eresource.getCNameByCC(ownccode) Dim ownDiv As String = own.Tables(0).Rows(k).Item(1) Dim resourcename As String = own.Tables(0).Rows(k).Item(2) txt = " " & ownCname

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                                John Kuhn
                                wrote on last edited by
                                #38

                                Well... one of the original principles of structured programming is that you can and should break large tasks down into smaller tasks, and each task -- a function or a procedure ("sub" in VB.NET) -- can have parameters passed by the calling procedure. So, in this case, you could create one or more subs or functions, either with the "e" as a parameter, or one or more subs or functions that take as their parameter(s) a value of a property of "e":

                                Private Function DoSomething(ByVal e As DayRenderEventArgs) As Label
                                ' ...
                                End Function

                                or,

                                DoSomethingElse(e.Day.IsOtherMonth)
                                Private Sub DoSomethingElse(ByVal isOtherMonth As Boolean)
                                ' ...
                                End Sub

                                OK? What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.

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