Resolved Return The Results Of An Updated Webform

benshaws

New member
Joined
Sep 19, 2013
Messages
4
Programming Experience
Beginner
I have a webform that is pre-populated with data obtained from a database (A calendar event). The user can amend/change the data on the form and click a OK button that should then update the database. My code runs fine (no error messages) except the data being posted back is the original data from the page load event. I have included some message boxes to display the variables contents, so I could determine what is happening for testing purposes.

For the record I am using Visual Express Web Developer 2012. .net framework 4.0 and the database is MS Access.

VB.NET:
Imports Calendar.GlobalVariables

Public Class WebForm1
    Inherits System.Web.UI.Page


    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim ds As New DataSet
        Dim strQuery As String = "SELECT * FROM Calendar WHERE itemTitle = '" & strSelectedTitle & "' AND itemDate = '" & strSelectedDate & "'"
        Dim da As New OleDb.OleDbDataAdapter(strQuery, strConnection)

        strConnection.Close()
        strConnection.Open()

        'Create a dataset.
        da.Fill(ds, "Calendar")
        da.Dispose()
        strConnection.Close()

        'Display the results in the edit event form.
        _Date.SelectedDate = strSelectedDate
        ClrTitle.Text = strSelectedTitle
        Details.Text = (ds.Tables.Item("Calendar").Rows.Item(0).Item("itemDetails")).ToString
        ds.Dispose()
    End Sub


    Protected Sub Do_Update(sender As Object, e As EventArgs) Handles BtnUpdate.Click
        'Only update the database if the user entered valid inputs
        If Not Page.IsValid Then Exit Sub

        'strSelectedDate is a Shared Public As Date variable.
        'strSelectedTitle is a Shared Public As String variable.
        Dim strNewDate As Date = (_Date.SelectedDate).ToString
        Dim strNewTitle As String = ClrTitle.Text
        Dim strNewDetails As String = Details.Text
        Dim strUpdate As String = "UPDATE Calendar SET itemDate ='" & strNewDate & _
                                  "', itemTitle ='" & strNewTitle & _
                                  "', itemDetails ='" & strNewDetails & _
                                  "' WHERE itemDate ='" & strSelectedDate & _
                                  " AND itemTitle = '" & strSelectedTitle & "'"
        Dim myCommand As New OleDb.OleDbCommand


        MsgBox(strNewDate) 'THIS STILL HOLDS THE VARIABLE FROM THE PAGE LOAD EVENT EVEN IF CHANGED BY THE USER.
        MsgBox(strNewTitle) 'THIS STILL HOLDS THE VARIABLE FROM THE PAGE LOAD EVENT EVEN IF CHANGED BY THE USER.
        MsgBox(strNewDetails) 'THIS STILL HOLDS THE VARIABLE FROM THE PAGE LOAD EVENT EVEN IF CHANGED BY THE USER.


        myCommand.CommandText = strUpdate
        myCommand.Connection = strConnection
        strConnection.Close()
        strConnection.Open()
        myCommand.ExecuteNonQuery()
        strConnection.Close()

        Response.Redirect("~/default.aspx")   'Redirect the user to the home page.

    End Sub
End Class



HTML:
    <div>
        <table class="calendar" style="margin-left: auto; margin-right: auto;">
            <tr class="calendar">
                <td class="calendar" style="vertical-align: top"></td>
                <td class="auto-style3" style="vertical-align: top; margin-left: auto; margin-right: auto; padding: 0px">
                    <asp:Calendar ID="_Date" runat="server" AutoPostBack="True" Height="167px" Width="442px" Style="margin-left: auto; margin-right: auto; padding: 0px" BackColor="White" BorderColor="Black" BorderStyle="Solid" CellSpacing="1" Font-Names="Verdana" Font-Size="9pt" ForeColor="Black" NextPrevFormat="FullMonth">
                        <DayHeaderStyle Font-Bold="True" Font-Size="8pt" ForeColor="#333333" Height="8pt" />
                        <DayStyle BackColor="#CCCCCC" />
                        <NextPrevStyle Font-Bold="True" Font-Size="8pt" ForeColor="White" />
                        <OtherMonthDayStyle ForeColor="#999999" />
                        <SelectedDayStyle BackColor="#333399" ForeColor="White" />
                        <TitleStyle BackColor="#333399" BorderStyle="Solid" Font-Bold="True" Font-Size="12pt" ForeColor="White" Height="12pt" />
                        <TodayDayStyle BackColor="#999999" ForeColor="White" />
                    </asp:Calendar>
                </td>
            </tr>
            <tr class="calendar">
                <td class="calendar" style="vertical-align: middle">Description</td>
                <td class="auto-style3" style="vertical-align: top">
                    <asp:TextBox Width="100%" ID="ClrTitle" runat="server" /><br />
                </td>
            </tr>
            <tr class="calendar">
                <td class="calendar" style="vertical-align: top"></td>
                <td class="auto-style3" style="vertical-align: top;color:red;">
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="ClrTitle" runat="server">This is a required field</asp:RequiredFieldValidator>
                </td>
            </tr>
            <tr class="calendar">
                <td class="calendar" style="vertical-align: top">Notes</td>
                <td class="auto-style3" style="vertical-align: top">
                    <asp:TextBox ID="Details" runat="server" Height="146px" Width="100%" style="" TextMode="MultiLine"/>
                </td>
            </tr>
            <tr class="calendar">
                <td class="auto-style4"></td>
                <td class="auto-style5" style="vertical-align: top">
                    <asp:Button ID="BtnUpdate" Text="OK" OnClick="Do_Update" runat="server" Width="100px" />
                    <asp:Button ID="BtnDelete" Text="Delete" OnClick="Do_Delete" runat="server" Width="100px" />
                </td>
            </tr>
        </table>
    </div>
I would be grateful if someone would point me in the right direction with solving this.

Thanks.

Mod edit fixed code tags. Please use the code tags provided by the editor.
 
Last edited by a moderator:

benshaws

New member
Joined
Sep 19, 2013
Messages
4
Programming Experience
Beginner
As I have had no replies thought I should bump this....
 
Last edited:

benshaws

New member
Joined
Sep 19, 2013
Messages
4
Programming Experience
Beginner
Mod edit fixed code tags. Please use the code tags provided by the editor.

I probably did!

In the six years and nine months since I posted my question the forum has changed somewhat.

I am a home/hobbyist programmer and this was my first and only foray into .asp. From what I remember I took an hour to write the above and a week attempting to get it to work. Only then did I post on here (my only ever post on a programmers forum). Since then this code has sat in a folder on my desktop. Even for 'old times sake' a pointer would be nice. My original question from 2013 does just ask for a pointer - not actual code.

Cheers,
benshaws.
 

Sheepings

Senior Programmer
Staff member
Joined
Mar 7, 2014
Messages
113
Location
UK
Programming Experience
10+

Sheepings

Senior Programmer
Staff member
Joined
Mar 7, 2014
Messages
113
Location
UK
Programming Experience
10+
You're very welcome.
 
Top Bottom