When you want to crosspage from a page, and your previous page is using master pages then take caution and dont simply try to find your desired control first. You need to find your control first in contentplaceholder of your master page and yes that make sense perfectly but why cant we developers think like that and google for tutorials any ways here is the code in C# to find your desired control. If you have a FormView control in your previous page along with the master page then you also have to dig one more level to have your desired control.. here you go

protected void Page_Load(object sender, EventArgs e)
{
if (Page.PreviousPage != null)
{
ContentPlaceHolder ph = (ContentPlaceHolder)PreviousPage.Master.FindControl(”ContentPlaceHolder1″);
FormView fv = (FormView)ph.FindControl(”FormView1″);

Label SourceRequestID = (Label)fv.FindControl(”IDLabel1″);
if (SourceRequestID != null)
{
txt1.Text = SourceRequestID.Text;
}
}

}

Happy Cross Posting

While transferring one of my application to another server this problem arises to my one ASP.net 2.0 application. First i thought to chek web.config to check all the SMPT setting for new server.And yes this is also the FIRST thing to do. But i find out the was a relay error. I just need to configure my smtp server to relay properly.

Just to go your IIS -> Default SMTP Virtual Server -> Properties -> Access -> Relay Restrictions
and set the relay restricition properties according to your requirement and Eurekaaaa you are done.

Happy emailing
Nadia

I had to generate PDF in my ASP.net 2.0 web application and preferably with an open source code and i found itextsharp. But unfortunately i was unable to get a kickstart as there was not much help on it . But after some googling i got hands on one decent link which has some decent tutorials on itextsharp.

For those who dont know about iText# (iTextSharp) is a port of the iText open source java library written entirely in C# for the .NET platform. iText# is a library that allows you to generate PDF files on the fly. It is implemented as an assembly. You can download iTextSharp at this link

Here is the link Tutorials on iTextSharp. And this link will surely give you a quick start on creating PDFs in ASP.net 2.0 applications.

When this error comes this means your mail server considers itself being used as a mail relay. To remove this error you can simply add this line in your mail snippet and then happy mailing

smtpClient.DeliveryMethod = SmtpDeliveryMethod.PickupDirectoryFromIis;

I am stating here sample C# code as well

SmtpClient smtpClient = new SmtpClient(”your server”);
MailMessage message = new MailMessage(”webmaster@testsite.com”, blhblah@testsite.com”);
message.Subject = “Subject Email”;
message.Body = “Body Email”;
message.Attachments.Add(new Attachment(path +”/doc1.pdf”));
smtpClient.DeliveryMethod = SmtpDeliveryMethod.PickupDirectoryFromIis;
smtpClient.Send(message);

You have probably deployed your application with crystal report on to remote server and that server have not crystal reports installed. Find CRRedist2005_x86.msi on your local computer and isntalled it on the sever and atleast the error which the title of this post will be gone with wind

I didn’t expected this error would caused by master pages..  wiered enough…

any ways have a look at this link which worked for me

http://cosier.wordpress.com/2006/12/22/element-%e2%80%9cscriptmanager%e2%80%9d-is-not-a-known-element-this-can-occur-if-there-is-a-compilation-error-in-the-website/

even when you have done the above solution and a error  “Only one instance of a ScriptManager can be added to the page” then simply move your scriptmanager to the master page and then just add update panal and content template to the page in concern.

Hope that helps

Phew… after googling for about a day and half .. i came across many solution to this error. Actually i wanted to cascade two dropdown lists in an edit mode of a formview control. I was trying to populate dropdownlist City on the basis of Country selected in Country dropdown list. (I was using little Ajax. I had placed my two dropdowns in the updatecontrol panal with a scriptmanager )

One solution that i came across was to make EnableViewSate to false. But it didnt work for me. The solution that actually worked for me was this

Firstly I made My Country dropdownlist Autopostback property to true. And it was the “SelectedValue” property of city dropdown list  that was creating mess. I actually removed it and then my dropdown City looked like this

<asp:DropDownList ID=”DropDownList4″ runat=”server” DataSourceID=”dsCity” DataTextField =”CityName” DataValueField=”Cityid” Width=”225px” OnDataBinding =”DropDownList4_DataBound”>

Then i added two functions on two events. One on formview’s Itemupdating events and the other was on databound event of city dropdown. Here is the code

protected  void FormView1_ItemUpdating(object sender, FormViewUpdateEventArgs e)

{

e.NewValues["CountryID"] = ((DropDownList)((FormView)sender).FindControl(“DropDownList3″)).SelectedValue;

e.NewValues["Cityid"] = ((DropDownList)((FormView)sender).FindControl(“DropDownList4″)).SelectedValue;

}

protected void DropDownList4_DataBound(object sender, EventArgs e)

{

DropDownList ddl = (DropDownList)sender;

FormView frmV = (FormView)ddl.NamingContainer;

if (frmV.DataItem != null)

{

string strCity = ddl.SelectedValue.ToString();

DropDownList ddlSubdivision = (DropDownList)frmV.FindControl(“DropDownList4″);

ddl.ClearSelection();

ListItem lm = ddl.Items.FindByValue(strCity);

if (lm == null)

{ ddl.SelectedIndex = 0; }

else

{ lm.Selected = true; }

}

}

note: thanks to this link www.webswapp.com 

Configuration Error

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Line 10: <configuration> Line 11: 	<appSettings></appSettings> Line 12: 	<connectionStrings> Line 13:   <add name="ConnectionString1" connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True" Line 14:    providerName="System.Data.SqlClient" />

This error can come when you have multiple versions of .net running under IIS . There may be other reasons as well,i am stating just one of them.  You can resolve this by going into IIS ,and by going into the website in question  properties  and going into ASP.net tab and setting the correct version of the .net .

By default and for purely security purpose the search pane is disabled in IE7.  so “<a target = _search .. >” can not be uses any more.

 To enable it,one needs to go to  Tool -> internet options – > advance -> enable search pane *

* It will require a restart of IE7

For more info do visist these microsoft links

http://msdn.microsoft.com/library/default.asp?url=/workshop/essentials/whatsnew/whatsnew_70_sec.asp

http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/properties/target.asp

While i was recompiling the Vb6.0 made ActiveX Dll i found this error . There was no error in code . After little bit of search and work around on class properties i found out that i have to made the class instancing property to Multiuse and the class was compiled without any error.  (you can set the instancing property to any thing other then private to make a class publically creatable component)