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In order to dynamically add a user control (or any control for that matter) to the page you need to add it to an appropriate controls collection. Each control has a controls collection as does the page.
So, create your user control then add it to the controls collection you want (probably the page, or possibly the controls collection of the other user control)
Remember dyanmically created controls will not be recreated at each postback. It is your responsibility to recreate the control on each post back. So long as you create the control during the page load event then you will get the viewstate along with it. (Although, maybe not in during the Page Load event itself).
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Hi,
i have uploaded my site to web server goddady.com
i have a button to download dyanmically generated excel file.This button is ajax enabled.....When i am click on this button it will popup a message like
"That assembly does not allow partially trusted callers"
This is my web.config file
Code: ( xml )
1. <?xml version="1.0"?>
2.
3. <configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
4.
5. <configSections>
6. <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectio nGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
7. <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
8. <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHa ndlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
9. <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSecti onGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
10. <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializatio nSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="Everywhere"/>
11. <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSe ction, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
12. <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationSe rviceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
13. </sectionGroup>
14. </sectionGroup>
15. </sectionGroup>
16. </configSections>
17.
18. <appSettings>
19.
20. </appSettings>
21. <connectionStrings/>
22. <system.web>
23.
24. <compilation debug="false">
25. <assemblies>
26. <add assembly="System.DirectoryServices, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
27. <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
28. <add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
29. <add assembly="System.Messaging, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
30. <add assembly="System.Configuration.Install, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
31. <add assembly="System.Transactions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
32. <add assembly="Microsoft.Office.Interop.Excel, Version=11.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"/>
33. <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
34. </assemblies>
35. <buildProviders>
36. <add extension=".rdlc" type="Microsoft.Reporting.RdlBuildProvider, Microsoft.ReportViewer.Common, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
37. </buildProviders>
38. </compilation>
39.
40. <authentication mode="Windows"/>
41.
42. <pages styleSheetTheme="Smoke">
43. <controls>
44. <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
45. </controls>
46. </pages>
47.
48. <customErrors mode="Off" defaultRedirect="Error.aspx">
49. </customErrors>
50.
51. <httpHandlers>
52. <remove verb="*" path="*.asmx"/>
53. <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
54. <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
55. <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>
56. </httpHandlers>
57. <httpModules>
58. <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
59. </httpModules>
60. <identity impersonate="true" />
61.
62. </system.web>
63.
64. <system.web.extensions>
65. <scripting>
66. <webServices>
67.
68. </webServices>
69.
70. </scripting>
71. </system.web.extensions>
72. <system.webServer>
73. <validation validateIntegratedModeConfiguration="false"/>
74. <modules>
75. <add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
76. </modules>
77. <handlers>
78. <remove name="WebServiceHandlerFactory-Integrated"/>
79. <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
80. <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
81. <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
82. </handlers>
83. </system.webServer>
84.
85. </configuration>
This code below is for generating Excel
//launch an excel instance
Excel.Application excel = new Excel.ApplicationClass();
//set the visibility to true
excel.Visible = false;
//Add a workbook object
Excel.Workbook workbook = excel.Workbooks.Add(Server.MapPath("~\\General\\Invoice\\Invoice.xlt"));
//Create a worksheet object
Excel.Sheets sheets = workbook.Worksheets;
//from the collection of worksheet select one worksheet
Excel.Worksheet mySheet = (Excel.Worksheet)sheets.get_Item("Invoice");
//select the cell in the worksheet
Excel.Range name = (Excel.Range)mySheet.get_Range("B8", "B8");
Excel.Range school = (Excel.Range)mySheet.get_Range("B9", "B9");
Excel.Range street = (Excel.Range)mySheet.get_Range("B10", "B10");
Excel.Range city = (Excel.Range)mySheet.get_Range("B11", "B11");
Excel.Range tel = (Excel.Range)mySheet.get_Range("B12", "B12");
Excel.Range date = (Excel.Range)mySheet.get_Range("F3", "F3");
Excel.Range invoiceNo = (Excel.Range)mySheet.get_Range("F4", "F4");
Excel.Range dueDate = (Excel.Range)mySheet.get_Range("F15", "F15");
//assign text value to string
string contact = lblName.Text;
string schoolName = lblSchName.Text;
string address = lblStreet.Text;
string state = lblCity.Text;
string telephone = lblTel.Text;
string currentDate = lblDate.Text;
string invoiceNumber = lblInvoiceNo.Text;
string dateDue = lblDueDate.Text;
//Add a text in the cell
name.Value2 = contact;
school.Value2 = schoolName;
street.Value2 = address;
city.Value2 = state;
tel.Value2 = telephone;
date.Value2 = currentDate;
invoiceNo.Value2 = invoiceNumber;
dueDate.Value2 = dateDue;
string url = Server.MapPath("~\\General\\DownloadInvoice\\Invoice.xls");
try {
FileInfo TheFile = new FileInfo(url);
if (TheFile.Exists)
{
File.Delete(url);
workbook.SaveAs(url, Excel.XlFileFormat.xlWorkbookNormal, null, null, false, false, Excel.XlSaveAsAccessMode.xlShared, false, false, null, null, null);
workbook.Close(false, null, null);
}
else
{
workbook.SaveAs(url, Excel.XlFileFormat.xlWorkbookNormal, null, null, false, false, Excel.XlSaveAsAccessMode.xlShared, false, false, null, null, null);
workbook.Close(false, null, null);
}
}
catch (FileNotFoundException ex) { }
Please help me on this issue?
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Hi All!
Im have a problem of using crystal report with web page.currently im using crystalViewer in different page (that is in different folder,and also view the report as another new web page not the same one), and my main form is in the fifferent folder, i have code databinding and parameter setting also in that crystalviewer page,that is not working properly some of mistakes are there,if someone know any better idea with this pls help me to solve this.
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How can I customize the layout of my divs during runtime? I need to Know how to change the location of the divs in the site if it is possible. Thanks
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Do you mean dragging the div's ? Use javascript to do that. There is a project in codeplex named "DropThings". Look at it's code.
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10xs for your reply. My real problem is to create a GUI where a user can change the location of the divs from a webpage that allows to do so. if you know how please post again.
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Hi,
I wrote this code for sending mail but the error that the ip is refused is appeared,
what's the problem?
Dim message As New MailMessage()
Dim f1 As String = String.Empty
If FileUpload1.HasFile Then
f1 = FileUpload1.FileName
FileUpload1.SaveAs(Server.MapPath("Attach/" + file1))
Dim attach As New Attachment(Server.MapPath("Attach/" + file1))
message.Attachments.Add(attach)
End If
message.Body = txtBody.Text
Dim mailAdrs As New MailAddress(txtEmailSender.Text, txtSender.Text)
message.From = mailAdrs
message.Subject = txtSubject.Text
Dim con As New SqlConnection()
con.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings("DrMasanConnectionString").ConnectionString
Dim com As New SqlCommand()
com.CommandText = "Select Email From [User]"
com.Connection = con
con.Open()
Dim reader As SqlDataReader = com.ExecuteReader()
While reader.Read()
message.To.Add(reader("Email"))
End While
Dim smtpC As New SmtpClient()
smtpC.Host = "drmasan.com"
smtpC.Send(message)
Best wishes
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mehrdadc48 wrote: smtpC.Host = "drmasan.com"
Looks like the host name provided here is refusing connection. Have checked with the provider ?
mehrdadc48 wrote: While reader.Read()
message.To.Add(reader("Email"))
End While
mehrdadc48 wrote: FileUpload1.SaveAs(Server.MapPath("Attach/" + file1))
Dim attach As New Attachment(Server.MapPath("Attach/" + file1))
OT : AFAIK, there is a limit in the number of recipients which can be specified at the TO address. So if you have more number of users than the allowed limit, it will throw error. Also there is no need to save the file for attaching with mail, you can attach a file from stream.
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Hi,
I have an httpmodule which am using to modify the value of my querystring parameter.
What i did was to encrypt the value of the querystring parameter, am decrypting the parameter inside the BeginRequest event so my code behinde will have access to the plaintext.
the issue is when retrieve the parameter into a NameValueCollection and try to use the Set method to update the parameter value i get this error. System.NotSupportedException: Collection is read-only.
but i can't access the IsReadOnly property of the class. how do i update the decrypted parameter value to the querystring so i can have the plaintext in my code behind.
Thanks in advance
Lookman
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AFAIK, query string collection is read only. So you can't assign anything to there. Instead ,you can rewrite the path with the new values required. Use Context.RewritePath
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wat happens to the NameValueeCollection Set Method, wat is d use?
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Set() won't work because the whole collection is read only. Your best bet is rewrite the path.
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Hi,
I am using an ActiveX control in a web page, when a button is clicked the control is executed in java script code, Before executing the control, the system is displaying a prompt message that:
An activeX control on this page might be unsafe to interact with other parts of the page, Do you want to allow this interaction.
is there any way to disable such prompts.
Thanks in Advance
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Yes, get the user to disable them. This is a security feature, you can't just turn it off remotely
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Hi,
Is it possible to have a combobox in ASP.Net were a user can enter new values or edit the existing values.
I searched via google but am not getting the simplest way to do this.
Am new to ASP ,any help will be welcome.
Any links or ideas are welcome.
Many Thanks
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I doubt it. You could do some javascript to alternate between a textbox and a dropdownlist, but I don't think a HTML drop list is ever editable.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Hi All,
I want to access server controls using javascript in web user controls. I tried it by using "i=document.all.txtActualCost.value;" statement. But it is giving error. Please can anybody help me.
Thanks,
Aleem Mohammad
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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Your first port of call ( apart from google ) should be to look at the actual HTML being generated. ASP.NET generates unique client side names. That means the server side name is not it.
On the server side, txtActualCost has a property called ClientID. Emit some script that stores this value for the client side and use that.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Hi Christian,
I have tried it too, by using the i=getElementByID("txtActualCost").value;. It is too giving error. And not getting much support from google too. Please can any body help me.
Thanks,
Aleem Mohammad
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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Please read what I told you. What you're doing, won't work, for the reason I just explained. Please do what I suggested - look at the HTML and you'll see what it's called on the client. The nasty hack is to copy that value, the right way is to use the ClientID property to write out the right string into your javascript.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Sorry christian I got it. And became busy thats why I didnt inform you yaar. Sorry.
Aleem Mohammad.
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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indian143 wrote: i=getElementByID("txtActualCost").value
As CG suggested, use ClientId. If your server control is in a user control, ASP.NET prefixes the user control's id with the control id. So your getElementById('ControlName') won't work. Use ClientId instead.
var controlId = '<% ControlId.ClientId %>';
var controlObject = document.getElementById(controlId);
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I got it Navaneeth, but why document.getElementById() function is not working at my machine. I guess its browsers version problem. At clients place how can we solve this problem. Can you please suggest me yaar.
Thanks,
Aleem Mohammad.
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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indian143 wrote: but why document.getElementById() function is not working at my machine
As I told, use ClientId instead. Appending container id with control's id is a ASP.NET mechanism to keep control id unique throughout the page.
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When I began the programming for http://www.sceptermarketingtechnologies.com, I quickly noticed that Asp.net does not support the MessageBox class that I was familiar with in windows forms.
Since Asp.net runs on the server it doesn't have access to produce a modal dialog box on the client. However, by using a scripting language that runs in the clients browser a similar construct is available. In javascript the window.alert() function will produce a modal dialog similar to what you would expect from MessageBox in windows forms.
So, I decided to create a static class MessageBox with a static method Show(), which will give you the ablility to to still use the syntax MessageBox.Show("Your Message"); and then convert it into the javascript window.alert("Your Message"); and add the script to the end of the current response stream.
I've written a how to on my blog at: http://sceptermt.blogspot.com/2008/02/how-to-create-message-box-class-in-c.html that shows the source code that I used in C# for my web application and details on how it works.
You could also write overloads for the static show() method to allow the class to do a javascript confirm() or a prompt(). I haven't needed that functionality yet so I've just kept it simple.
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