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There are two ways of doing this - an easy "hack" and a "proper" way...
The easy way is simply to save your images with randomly assigned (GUID-type thing) filenames which can't be guessed. This doesn't stop people linking directly to your images once they know the filename of course, but unless your images are highly popular that is unlikely to be a problem, but it will stop them from finding images until you reveal the address.
The proper way is to write a custom handler; you can find an example here[^]. Note though that depending on your version of IIS you may need to perform some steps differently - that article assumes IIS6; once you get above this you need to write your config file differntly, for one thing...
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hi all
i have created a form for printing of sale bill.
when user create a bill a voucher number is generated. i pick that voucher number and generate its printing. while generating the printing i m creating a html for the printing and storing that html in string.
when the all html is genearated i pass that string to another page where a javascript function is called. A pop up populate and user click on print button
but now i want this printing for 10 - 20 voucher number(means continous printing). the problem is if i generate html for 10-20 voucher then i take too much time.
i dont know to do this.
any suggestion
Er. Jagwinder Singh
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Webapplications are not suitable for what you are trying to do. Consider changing your design.
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i have all builded the application now how i can change its design
Er. Jagwinder Singh
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I am using COM DLL (Which is developed in VB) in .Net to fill the Schools Name in Dropdown list but it is not filling (it is giving this error: Server Threw an Exception: RPC_E_SERVERFAULT’). In development machine it is working fine and we have another product which is not using this COM DLL that application also working fine. It seems COM DLL having some issue with Network Path
Our Product installed in Windows 2003, which is running IIS 6.0 in the same machine but our Data (Contains collection of Files) is other machine (Jai-XP PC). Both the machines are connected under one
Domain controller.
In IIS under Directory Security I gave domain user ID and password and i gave the same user for data also.
How we can solve Interop services in domain controller environment.
I hope somebody will resolve...
Thanks & Regards,
Jai Sankar N.
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simple example :- i have problem in this code how can i remove.
<body>
<form id="form1" runat="server">
<div>
<asp:scriptmanager id="ScriptManager1" runat="server" xmlns:asp="#unknown">
</asp:scriptmanager>
<asp:updatepanel id="UpdatePanel1" runat="server" xmlns:asp="#unknown">
<contenttemplate>
<asp:updatepanel id="UpdatePanel2" runat="server" childrenastriggers="False">
UpdateMode="Conditional">
<contenttemplate>
<asp:fileupload runat="server" id="fu1" />
</contenttemplate>
<triggers>
<asp:asyncpostbacktrigger controlid="btn" eventname="Click" />
</triggers>
</asp:updatepanel>
<asp:button runat="server" id="btn" text="ok" onclick="btn_Click" width="41px" />
</contenttemplate>
</asp:updatepanel>
</div>
</form>
</body>
protected void btn_Click(object sender, EventArgs e)
{
string str11 = fu1.FileName;
if (fu1.FileName != "")
{
string str = "~/images/photo/";
str = Server.MapPath(str);
str = str + "a" + ".jpg";
}
}
str11 have nothing while select a file and first update panel is also necessary for my code. please solve my problem? 
I will do my best?
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Try this:
put fileupload control and button in two separate update panel and updatemode always.
Cheers!!
Brij
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<form id="form1" runat="server">
<div>
<asp:scriptmanager id="ScriptManager1" runat="server" xmlns:asp="#unknown">
</asp:scriptmanager>
<asp:updatepanel id="UpdatePanel1" runat="server" xmlns:asp="#unknown">
<contenttemplate>
<asp:updatepanel id="UpdatePanel2" runat="server" childrenastriggers="False">
UpdateMode="Conditional">
<contenttemplate>
<asp:fileupload runat="server" id="fu1" />
</contenttemplate>
<triggers>
<asp:asyncpostbacktrigger controlid="btn" eventname="Click" />
</triggers>
</asp:updatepanel>
<asp:updatepanel id="UpdatePanel3" runat="server">
<contenttemplate>
<asp:button runat="server" id="btn" text="ok" onclick="btn_Click" width="41px" />
</contenttemplate>
</asp:updatepanel>
</contenttemplate>
</asp:updatepanel>
</div>
</form>
as u told me i do this but not work.
I will do my best?
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Can you show me where is the Closing tag of update panel
Cheers!!
Brij
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thanks for reply and for help
i want to clear you that
i have a grid view in middle panel which having datagrid control when edit and add button is clicked on right panel open edit and add panel and i want that page will not post back so i use ajax(for retriving) so i take datagrid in update panel and all panel related to that grid have another update panel.
as you answer that i have this fileupload and button on other update panel(seprate panel) than application work like firstly edit your all info and after that go for new menu if he want to edit image also. for this reason i cant take this in seprate panel.
please tell me what to do on this condition?
I will do my best?
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thanks to reply but error is shown:-
Control with ID 'btn' cannot be registered through both RegisterAsyncPostBackControl and RegisterPostBackControl. This can happen if you have conflicting triggers associated with the target control.
I will do my best?
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hi,
i am not very much clear for your question but as per your question what i can suggest you is
1> First put all the update panels in one updatepanel and
set childrenastriggers=true and updatemode=always
2> Put both the controls in one updatepanel only..
Reasons are not Important but Results are Important.
Swati Tripathi
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Thnaks to reply
yes i have already done this but problem is that i am use debug and found that fileuplod.filename is empty means it can't get file name. while i am selecting a .jpg file.
I will do my best?
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hey please check your triggers.
Reasons are not Important but Results are Important.
Swati Tripathi
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thanks  for reply
& if trigger change in place of ascncronys into autopostback than page will refresh and i dont want that my page will refresh another wise its working properly and then where i use ajax for this control. here is any other way that page will not refresh and work is done properly.
I will do my best?
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how can i save DataGridView Data into excel sheet in windows. plz help.
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plz go thru this link
http://xldennis.files.wordpress.com/2008/02/dgviewcode3.png
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Worksheet shall be created only once. after that new rows shall be inserted in it like it is done with sql. is this code like that.
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hi
well i am looking for the expression validator for this kind of string
aa1_aa2_aaa
if anyone could help......
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You could search about Regular Expression.It is simple.
studing is processing in this life.
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hi,
try this one.
^(([a-zA-Z\d]{3}_){2})([a-zA-Z\d]{3})
It will check for aplhanumeric strings seperated.
Can U give more examples of the type of string you want?
Hope to be of help.
take care
mani
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Do you mean that the first two should end with a digit:
([a-z]{2}\d_){2}[a-z]{3}
or that the first two can contain digits:
([a-z\d]{3}_){2}[a-z]{3}
or that all three can contain digits:
([a-z\d]{3}_){2}[a-z\d]{3}
?
Despite everything, the person most likely to be fooling you next is yourself.
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