Solved

Dynamic button onclick to run code

Posted on 2007-12-03
3
843 Views
Last Modified: 2010-08-05
Hi,

I'm working in VS using vb.net with 1.1 framework. I am dynamically creating a button, but I cannot get the button to run the Function I need it to run. This is the code I am using to create the button in my code behind page:
  vHTML = vHTML & "<tr>"
                vHTML = vHTML & "<td colspan='7' align='center'>"
                vHTML = vHTML & "<input type='Submit' name ='Submit' onClick=""MarkContacted()"" value='Mark as Contacted'>"
                vHTML = vHTML & "</td>"
                vHTML = vHTML & "</tr>"
                vHTML = vHTML & "</table>"

This is the code for the function I need it to run:

 Private Function MarkContacted()
        Dim Myconn As SqlConnection
        Dim Mycomm As SqlCommand
        Dim sql As String
        Dim Success As Boolean
        Dim vDate As String
        vDate = Request("frmContactDate")    

        Dim i
        Dim vIdArray
        'Make sure something is in the collection
        If Request("Contact") = "" Then
            Response.Write("Nothing was checked!<br>")
        Else
            'Split it by comma
            vIdArray = Split(Trim(Request("Contact")), ",")
            'Open DB connection (I didnt do this)
            Try
                Myconn = New SqlConnection(ConfigurationSettings.AppSettings("connstr"))
                Myconn.Open()
                'Loop through the collection
                For i = 0 To UBound(vIdArray)
                    'build sql string
                    sql = "UPDATE tbl_eeocm_data SET [LastDateOfContact] = '" & Request("frmContactDate") & "' WHERE ID = " & vIdArray(i)
                    Mycomm = New SqlCommand(sql, Myconn)
                    Mycomm.ExecuteNonQuery()
                    Success = True
                    'Response.Write("update where id = " & vIdArray(i) & "<br>")
                    Response.Write(sql)
                    'Update record here (I didnt do this)
                Next
                'close the connection (I didnt do this)
                Myconn.Close()
            Catch Ex As Exception
                Success = False
                Response.Write("<br>" & sql & "<br><br>")
                Response.Write("<p><strong>An Error Occurred:</strong> " & Ex.ToString() & "</p>" & vbCrLf)
                Response.Write(sql & "<br>")
            Finally
                Myconn.Close()
            End Try
        End If
        ' ===============================================================
    End Function


Can anyone tell me what I am doing wrong?? I would really appreciate the help. Thanks!
0
Comment
Question by:savache27
  • 2
3 Comments
 
LVL 37

Accepted Solution

by:
samtran0331 earned 500 total points
ID: 20396195
when you do this:
vHTML = vHTML & "<input type='Submit' name ='Submit' onClick=""MarkContacted()"" value='Mark as Contacted'>"


the onclick event is a client-side javascript, so the rendered html thinks that MarkContacted is javascript not server code.

Ideally, in ASP.Net, you shouldn't have to build an html table as a string...what's the "bigger picture" here?
0
 

Author Comment

by:savache27
ID: 20396900
Thank you for the explanation. I've decided not to build the button dynamically.
0
 
LVL 37

Expert Comment

by:samtran0331
ID: 20396935
Just keep in mind that you can add buttons dynamically, but to make life easier, they should be "<asp:button..>" controls and not html <input tags
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

User art_snob (http://www.experts-exchange.com/M_6114203.html) encountered strange behavior of Android Web browser on his Mobile Web site. It took a while to find the true cause. It happens so, that the Android Web browser (at least up to OS ver. 2.…
If you need to start windows update installation remotely or as a scheduled task you will find this very helpful.
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
This video demonstrates how to create an example email signature rule for a department in a company using CodeTwo Exchange Rules. The signature will be inserted beneath users' latest emails in conversations and will be displayed in users' Sent Items…

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now