how to use dll in another project in asp.net?

anjali khan

11y1.9k.NET

how to use dll in different web based project in asp.net

i created project like useddllindiffproject

i bulid so dll will be created

i want use this dll to another web based project but how?

please send me step by step explation..

dont send me any url becz i checked but my application is not working..

please share the ans as soon as possible ..i am sending the code also

and my code is

18 Replies

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Sujeet Suman11y ago
Anjali please give me some time. Right now I am also busy in some major issue.
anjali khan11y ago
hi Sujeet ,

can u give the ans for the below qus?
how to create custom control for the label and checkbox in asp.net

i created simple webform and used it...now i want to make this code in custom control

so please tell me how to do it??

i want to create 1 label and 2 checkbox in coutom control page..

so if i click on chkbox1 so checkbox2 should be unchecked and if i click on 2nd chkbox
so chkbox2 should be unchecked..

for this i am using java script
jscript code///
anjali khan11y ago
i m getting like

System.Web.HttpException: The file '/Usedindiffproject/assignment/chechbox1.aspx' does not exist.
anjali khan11y ago
hi Friends ,

how to provide the path in different project..
i took one button in different project and provided the path

i am using like this
Server.Transfer("~//Usedindiffproject//assignment//chechbox1.aspx");
but this is not working..
Sumit Joshi11y ago
What is the error you are getting.
anjali khan11y ago
hi ,

i used dll in another project but it is not working...
Sujeet Suman11y ago
Welcome Anjali.............

If my contribution is helpful for you then please accept my Answer.
anjali khan11y ago
hi Sanjeev ,
u r right.i seen that article..
thanks for the update as on time...but my problem is

i want create 1 lable with 2 checkbox ..
i already send a code ..
now i want this application use to different project but how i dont know..
Sumit Joshi11y ago
Hi anjali khan,

If you want to use DLL in your project
First add Reference to that dll
second use namespace in your project

If helpfull mark as Correct Answer
Sujeet Suman11y ago
Anjali please first let us know what you need exactly. There is an very good article available on
C-SharpCorner. Please once go through below link:

http://www.c-sharpcorner.com/uploadfile/sapnabeniwal/create-custom-web-control-in-asp-net/
anjali khan11y ago
hi Friends,

can anyone suggest me how to make custom control for the above code in asp.net?
anjali khan11y ago
no yar,
i want to make custom control but how dont know
firstly tell me how to create custom control for the label and 2 checkbox in asp.net
Sujeet Suman11y ago
So Anjali I think already you having Custom Control DLLs.

Suppose your Custom Control DLL name is "CustomControl.Dll".
To add the custom control to the Toolbox
On the View menu, click Toolbox.
In the Toolbox, right-click and select Choose Items.
In the Choose Toolbox Items dialog box, select the .NET Framework Components tab, and then click theBrowse button to locate the CustomControl01.Dll which DLL you want to add.
Select the check box for the CustomControl.Dll control and click OK.
The CustomControl01 appears in the Toolbox
So now you can use this in your present application like normal server control.
Suthish Nair11y ago
So you want to reuse the checkbox's in another project? If that the case your method wont work. I think its a User Control, then just add the .ascx file as "Existing" to the other project.

http://webproject.scottgu.com/CSharp/usercontrols/usercontrols.aspx

Another method is to create a Control Library, and add as reference etc

Please do browse more on this topic.
anjali khan11y ago
but how to use with class library..

because i created web page with code so how to use this ..
Yadlapalli Srikanth11y ago
Steps to create and use the Dll in Visual studio IDE
1. Select File -->new project -->Class Library
2. Build the same
3. Open bin dedug folder you can find (Project name).dll
4.Now you can use the dll in other projects

Using the Dll
1.Right click on the project select Add references
2. Select browse from the left pane
3. Select the location of the dll and add the same
4. dll will be added.
anjali khan11y ago
i created simple project with checkbox which i send

this project dll i want to use in diff poject..

i gave the reference it is added..

but if i run the diff project using this dll so it is not working..

what should i do...
Suthish Nair11y ago
Hi Anjali,

If you are looking to just add a dll into your project, then add the dll using the Browse button in the Add Reference dialog from solution explorer.

Or, explain in detail what you trying to achieve here.

how to use dll in another project in asp.net?

User Control

To add the custom control to the Toolbox