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Hi,
Can anybody send me a tutorial on how to handle a dynamic dropdownlist in vb asp.net. What I want is to have 2 dropdownlist. In my first dropdownlist, I have the list of departments. Then in my second dropdown list, I have the list of the members of each department. So if I select Human Resource in my first drop down list, members from HR team in my second dropdown list will be enumerated and so on with other department.
I really appreciate your help. Thanks in advance.
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What you need to do is first fill the first dropdownlist(department) at the page load event and then on the SelectedIndexChanged fill the second dropdownlist(members) by getting the filtered records(members only associated with selected department).
Best Regards,
Apurva Kaushal
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Thank you very much but can you show me how? Because Im a newbie with this thing. I really appreciate it. Thanks in advance.
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If you know how to fill a dropdown list then at load event you assign the datasource(for this first you have to get the data from database) and then call the databind method. Secondly on the selectedindex change event of the first dropdown list bind the second dropdownlist(getting the corresponding data from the database).
To fill the second dropdownlist you have to pass the selected items ID(i.e. departments ID) in order to get the correct set of records.
If you still have the problem can you give the case in which exactly you are having the problem?
Best Regards,
Apurva Kaushal
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I M not Getting ur point plz send me appropriat code ..
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Do you want the code to bind the dropdownlist control, if so the here[^] you can get that.
Best Regards,
Apurva Kaushal
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Hi.. yes I already filled up a dropdown list coming from SQL data as my datasource. But I dont know how to code the second part that you are saying.
"Secondly on the selectedindex change event of the first dropdown list bind the second dropdownlist(getting the corresponding data from the database).
To fill the second dropdownlist you have to pass the selected items ID(i.e. departments ID) in order to get the correct set of records."
Can you show me in vb.net code? I really appreciate it. Thanks.
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What you need to do in the second part is you have to get the ID value of the item selected in the department dropdownlist(when you would have bind the first dropdownlist then you would have assigned the text and value field, you need to get that value of the selected item). And once you are having that you can query to get the records associated with that department ID. And once you get the desired records you have to bind the second dropdown exactly like you have done with the first one. I think now it would have been clear. 
Best Regards,
Apurva Kaushal
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Hi all,
In my Asp .net Application.. I need to store the date in a variable.. For that i wrote the following code
Dim thisDate, startDate, endDate As Date
Dim thisMonth, thisYear As Integer
thisDate = Now.Date
thisMonth = Month(thisDate)
thisYear = Year(thisDate)
If thisMonth = 1 Or 3 Or 5 Or 7 Or 8 Or 10 Or 12 Then
startDate = "1/thisMonth/thisYear"
endDate = "31/thisMonth/thisYear"
ElseIf thisMonth = 4 Or 6 Or 9 Or 11 Then
startDate = "1/thisMonth/thisYear"
endDate = "30/thisMonth/thisYear"
Else
startDate = "1/thisMonth/thisYear"
endDate = "28/thisMonth/thisYear"
End If
But it shows the error message as,
Cast from string "1/thisMonth/thisYear" to type 'Date' is not valid.
Please help me in this issue..
-- modified at 0:01 Tuesday 21st November, 2006
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JVVS wrote: If thisMonth = 1 Or 3 Or 5 Or 7 Or 8 Or 10 Or 12 Then
The Or operator doesn't work that way. You can't use it to compare one value to several values. You have to make each operand a complete condition.
JVVS wrote: startDate = "1/thisMonth/thisYear"
You can't use a variable inside a string. You have to concatenate the string values.
Why are you trying to create a string to be converted to a date? Use the constructor of the DateTime structure that takes year, month and day.
---
b { font-weight: normal; }
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Guffa wrote: JVVS wrote:
If thisMonth = 1 Or 3 Or 5 Or 7 Or 8 Or 10 Or 12 Then
How can i check without or operator..
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You don't have to do it without the or operator, you only have to use it correctly:
If thisMonth = 1 Or thisMonth = 3 Or thisMonth = 5 Or thisMonth = 7 Or thisMonth = 8 Or thisMonth = 10 Or thisMonth = 12 Then
---
b { font-weight: normal; }
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Hi,
Can we access html controls created through javascript in ASP.NET code behind ?
var arrInput = new Array(0);
var arrInputValue = new Array(0);
function addInput() {
//arrInput.push(createInput(arrInput.length));
arrInput.push(arrInput.length);
//arrInputValue.push(arrInputValue.length);
arrInputValue.push("");
display();
}
function display() {
document.getElementById('parah').innerHTML="";
for (intI=0;intI<arrInput.length;intI++) {
document.getElementById('parah').innerHTML+=createInput(arrInput[intI], arrInputValue[intI]);
}
}
function saveValue(intId,strValue) {
arrInputValue[intId]=strValue;
}
function createInput(id,value) {
//alert(id);
return "<input type='text' id='test "+ id +"' onChange='javascript:saveValue("+ id +",this.value)' value='"+ value +"'><br>";
//alert(test);
}
function deleteInput() {
if (arrInput.length > 0) {
arrInput.pop();
arrInputValue.pop();
}
display();
}
Dynamic creation of input boxes
Add more input field(s)
Remove field(s)
<asp:button id="MySubmit" runat="server" text="submit">
Can i access the controls data in codebehind ? i dont see it getting enumerated in the Controls collection ?
foreach (Control c in Controls)
Response.Write(c.ClientID.ToString() + c.GetType().ToString() + "
");
Rajaraman Soundararajan
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I have an ASP page that is the basic 'home' location (called user_area.asp) for all of my clients who log into my website. In the user_area.asp page, it calls for some common elements with an #INCLUDE FILE statement that are standard and not variable. (Such as 'header_inc.asp' and 'footer_inc.asp')
If I have a field in my Cutsomer Data Base (.mdb) called 'Custom2' and that field would contain a URL to something like:
mysite.com / clients / clientname / client.asp
What I would need to do is be able to use the #INCLUDE FILE statement to call for the 'Custom2' field so that I could include the clients 'client.asp' within the 'user_area.asp' page.
This 'Custom2' variable in my database would change accrdingly to whomever logged into the system. Since none of the clients have the same exact download files, the 'Custom2' variable would always change and the #INCLUDE FILE statement would always point and display a seperate client.asp page withing the user_area.asp page.
Thoughts? Resolution?
Code below...
========================================================================
<%@ LANGUAGE="VBSCRIPT" %>
<% LOGIN_PAGE = "Yes" %>
<!--#INCLUDE FILE="call_check_user_inc.asp"-->
<html>
<head>
<title><% =App_Name %></title>
<script src="../../Scripts/AC_RunActiveContent.js" type="text/javascript"></script>
</head>
<BODY <%=BodyTag%>>
<!--#INCLUDE FILE="header_inc.asp"-->
<%
User_ID = Session("User_ID")
%>
<div align="center"><center>
<table width="650" border="0" cellpadding="0" cellspacing="0">
<tr>
<td><font face="Arial"><font size="2"><br>
</font>
</font>
<div align="center">
<table border="0" cellpadding="0" bgcolor="#C0C0C0" cellspacing="0" width="500">
<tr>
<td colspan="3" bgcolor="#ECECE6">
<p align="center"><font face="Arial" size="1"> </font><font face="Arial" size="3"><b><% =Session("Company_Name") %>
User Area </b></font> </td>
</tr>
<tr>
<td colspan="3" bgcolor="#FFFFFF"><font face="Arial"><font size="2">Thank you for signing in
<% =Session("First_Name") %>,</font><br>
<br>
<font size="2">
You can edit your account info from this screen. </font></td>
</tr>
<tr>
<td width="77" bgcolor="#FFFFFF"> </td>
<td width="393" bgcolor="#FFFFFF"><font size="-1"><a href="edit.asp"><font face="Geneva, Arial, Helvetica, sans-serif">Edit Account Info </font></a></font></td>
<td width="30" bgcolor="#FFFFFF"> </td>
</tr>
<tr>
<td bgcolor="#FFFFFF"> </td>
<td bgcolor="#FFFFFF"><font size="-1"><font face="Geneva, Arial, Helvetica, sans-serif"><a href="<% Response.Write(Session("Custom1")) %>">Downloads</a></font></font></td>
<td bgcolor="#FFFFFF"> </td>
</tr>
<tr>
<td bgcolor="#FFFFFF"> </td>
<td bgcolor="#FFFFFF"> </td>
<td bgcolor="#FFFFFF"> </td>
</tr>
<tr>
<td bgcolor="#FFFFFF"> </td>
<td bgcolor="#FFFFFF"> </td>
</tr>
</table>
</div>
</td>
</tr>
</table>
</center></div>
<br>
<br>
<!--#INCLUDE FILE="footer_inc.asp"-->
</body>
</html>
Dave Steele
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I'm building a web accounting application in ASP.NET 2.0 using VS 2005 and SQL Express. I already developed a VB6 accounting app but re-developing in ASP.NET 2.0 is a bit difficult.
My problem is in making the form/web page look very much like the actual business form, say a sales invoice. In VB6 I could use the DBGrid control to add data but in ASP.NET 2.0 the GridView can only edit, select or delete. How to Create an Invoice-like Form in ASP NET 2.0 ?
I am at the moment trying to use a FormView for the invoice header so that I can rearrange the textboxes so that it looks like an invoice header (eg. invoice number, date on the right top edge, address on the left top edge, etc)
For the line item details (Stock Code, Description, Qty, Price and Amount) I put another FormView with a row of text boxes and an Insert link at the end and then a GridView just below it so that the columns are aligned with the input text boxes above. When users enter the input in the one-row text boxes above the grid, they can inserted into the grid row by row and the text boxes become blank again to accept new input.
I have tried to use the DetailView control to make my programming easier but I find no way to convert it into one single row rather than what it is now (1 column, a new rows for each field).
Anybody knows of a better way ?
Ezani
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I am trying to understand how to send HTML emails to the users. The content of the emails can vary according to the users, e.g.:
Dear [CustomerName]
Thanks for your orders. Your order number is [OrderNumber].....
How can I create / manage email content such as above.
I am also interested to know how does Amazon create their emails. Because the whole content of their emails is tailored for each individual customer.
Thanks
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Hey,
Check out Syed Moshiur Murshed's tutorial for sending email using GMail[^].
in his tutorial you can see that one of the properties he configed was:
<br />
mailMsg.BodyFormat = MailFormat.Text;<br />
MailFormat is an enum that one of his options is "HTML" that sends the email in html format (as you asked) and by using the class MailMessage you can render a html code and send it to the customer..
something like:
<br />
string customerName = ".....";<br />
long customerId = 539482;<br />
string messege = "<html><body>Hello " + customerName + " your Id is " + customerId.ToString() + "</body></html>";<br />
and then by using the Body property in MailMessage you can set the mail's text to the messege
by using:
<br />
mailMsg.Body = messege;
Hope I helped...
Good luck 
Tal Kain.
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Hello,
I have an Imagebutton with the folowing tag:
<asp:ImageButton runat="server" CommandArgument="0" ID="btnNota0" meta:resourcekey="img1" SkinID="Note0" OnClick="btnNote_Click" />
I need to create this button at runtime and adding it with the Controls.Add method.
The aspx file have a resx file in the LocalResources folder with the key "img1.Tooltip" to have the tooltip of the button localizable.
My problem is how can I create the button at runtime and use the same resource key?
Is this simple?
Thanks to everyone for the replies.
Regards
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Dim image1 As New ImageButton
image1.ID = "btnNota0"
Panel1.Controls.Add(m)
AddHandler image1.Click, btnNote_Click
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Hello,
I have a contact form in my web site which is working just fine on my
computer!
When I uploaded my web site to my hosting server I get an error when I
SUBMIT my form, i.e., when I click submit to send the email:
Security Exception
Description: The application attempted to perform an operation not
allowed by the security policy. To grant this application the required
permission please contact your system administrator or change the
application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request for the
permission of type 'System.Security.Permissions.FileIOPermission,
mscorlib, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089' failed.
Source Error:
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.
Stack Trace:
[SecurityException: Request for the permission of type
'System.Security.Permissions.FileIOPermission, mscorlib,
Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
failed.]
System.Security.CodeAccessSecurityEngine.Check(Object demand,
StackCrawlMark& stackMark, Boolean isPermSet) +0
System.Security.CodeAccessPermission.Demand() +59
System.IO.FileStream.Init(String path, FileMode mode, FileAccess
access, Int32 rights, Boolean useRights, FileShare share, Int32
bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String
msgPath, Boolean bFromProxy) +678
System.IO.FileStream..ctor(String path, FileMode mode, FileAccess
access, FileShare share) +114
System.Configuration.Internal.InternalConfigHost.StaticOpenStreamForRead(String
streamName) +80
System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String
streamName, Boolean assertPermissions) +115
System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String
streamName) +7
System.Configuration.Internal.DelegatingConfigHost.OpenStreamForRead(String
streamName) +10
System.Configuration.UpdateConfigHost.OpenStreamForRead(String
streamName) +42
System.Configuration.BaseConfigurationRecord.InitConfigFromFile()
+443
Maybe the error comes from me getting data from Web.Config?
I have this code inside a custom control but here it is:
1 Private Sub bSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bSubmit.Click
2
3 ' Create new mail message
4 Dim message As New System.Net.Mail.MailMessage
5
6 ' Define mail message properties
7 With message
8
9 ' Define various properties
10 .To.Add(New System.Net.Mail.MailAddress(Me.ToAddress, Me.ToName))
11 .Body = tbMessage.Text
12 .IsBodyHtml = True
13
14 ' Define fromMailAddress
15 If Me.NameVisible Then
16 .From = New System.Net.Mail.MailAddress(tbEmail.Text, tbName.Text)
17 Else
18 .From = New System.Net.Mail.MailAddress(tbEmail.Text)
19 End If
20
21 ' Define subject
22 If Me.SubjectVisible Then
23 .Subject = tbSubject.Text
24 End If
25
26 End With
27
28 ' Create and define the SMTP client
29 Dim smtpClient As New System.Net.Mail.SmtpClient
30
31 ' Create access to configuration file
32 Dim configurationFile As Configuration = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~/Web.Config")
33
34 ' Create mail settings section group
35 Dim mailSettings As System.Net.Configuration.MailSettingsSectionGroup = configurationFile.GetSectionGroup("system.net/mailSettings")
36
37 ' Define smtp client properties
38 If Not mailSettings Is Nothing Then
39 With smtpClient
40 .Port = mailSettings.Smtp.Network.Port
41 .Host = mailSettings.Smtp.Network.Host
42 .Credentials = New System.Net.NetworkCredential(mailSettings.Smtp.Network.UserName, mailSettings.Smtp.Network.Password)
43 End With
44 End If
45
46 ' Send the mail message and define sent property
47 Try
48
49 ' Send the mail message
50 smtpClient.Send(message)
51
52 ' Define sent property
53 Me.Sent = True
54
55 Catch ex As Exception
56
57 ' Define sent property
58 Me.Sent = False
59
60 End Try
61
62 ' Raise the OnFormSubmited event
63 RaiseEvent FormSubmited(Me, EventArgs.Empty)
64
65 End Sub
Maybe the problem comes from line 32? I am sure about this ...
Anyway, could someone help me out and send me some sugestions?
Thanks,
Miguel
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Try
Dim mailSettings As System.Net.Configuration.MailSettingsSectionGroup = ConfigurationManager.GetSectionGroup("system.net/mailSettings")
and remove 32, and 35
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Hi everybody!
I have a UserControl and all it's functionality is placed in an assembly (DLL). The UserControl generates a form with a number of TableRows containing a title, a input field and some other information. My problem is that every TableRow has a Tooltip set, and I don't want to show this. How on earth can I access the TableRow in the UserControl from the main-page's Page_Load and disable the Tooltip? My wish it that i somehow can access all the Tables TableRow's and disable them in a loop (like foreach (TableRow t in Table-placed-in-DLL-and-placed-in-usercontrol)...). Is it possible? Or do I have to solve this with javascript (hope not)?
Thank you!
pahlsson
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If you have developed the user control then provide a public property to disable/enable tooltip by using a for each loop that loops through all tablerows and assigns a blank string
If you didn't develop, see whether the table is exposed as a property and manipulate it using server side code
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I wan to access a control on parent form,
am trying it by using window.parent.opener.document.getElementById("control name");
actually when i see the html content of that page the control name is prefixed by
"ctl00_ctl02_control name"
so am not able to access the control with the control name can any one help me how to register and use same name in javascript also for the asp.net server control
Krishna
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try this:
supose ur control name is abc_control then
window.parent.opener.document.getElementById('<% abc_control.ClientID %>');
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