Download Crystal report for VS .Net 4.0

http://www.enterupload.com/sf60a8p3rmjm/CRforVS_13_0.exe.html
then click Regular Download ( > ) button.
then click Generate Download Link ( > ) button.
then wait few sec.
then download windows will come . and save download file.

To Run Crystal report in .net 4

To Run Crystal report in .net 4 Chang app config or web.config

with adding this code block

Conditional Message Box ( Yes, No) Button Click

DialogResult dlgResult = MessageBox.Show("Size Added . Do You Want To Entry the Stock ?", "Continue?", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dlgResult == DialogResult.Yes)
{

}
else if (dlgResult == DialogResult.No)
{

}

How To Create a DLL Form a C# Class

Go to Start > Visual Studio Command Prompt > Type F: and press enter
and ten type the path of your Classfile which You want to convert as DLL file.

E.G

F:\WebSite1>csc /t:library class1.cs

Explanation 1) csc --------- is a compilation command.
2) /t:library -- is a command to convert a class file to dll.
3) class.cs ---- is the file name or class name.