1
Answer

Bind data to asp.net dropdownlist in gridview?

divya

divya

12y
1.6k
1


hai


   im binding database data to dropdownlist in gridview(based on another dropdown value selection ,the gridview dropdown values must load).its working fine. while im adding new row dynamically then the grid refreshes and dropdown list does not have any values in both the rows.Any one can give solution to this ??? its urgent
Answers (1)
0
John Arcadella

John Arcadella

NA 345 226.5k 20y
Hi Josh, I think you would find the following article by Paul DiLascia useful: http://msdn.microsoft.com/msdnmag/issues/03/02/CQA/default.aspx Hope this help, MCB.
0
jmales

jmales

NA 5 0 20y
OK, I'll try to explain. I have an unmanaged C++ library that works with a piece of hardware. I wrote a managed C++ wrapper for the library. My main app is in C#. The hardware (library) raises an event in the unmanaged C++ . I want to call a routine in the GUI (C#). To do that I send a delegate from the C# program to the c++ program. The managed C++ wrapper gives me the ability to declare a reference in the C# program. I do not want to declare routines in external dll's. The delegate is called. That part works. The problem is that I can't get the C++ to pass the whole array over to the C#. Only the first element in the array seems to arrive. I once had this defined as unsafe code, and passed a *byte instead of []byte - and it worked. I was just trying to make this code safe. Hope this explains my intentions. Thanks for all your patience. Josh
0
bilnaad

bilnaad

NA 686 0 20y
For the record are talking C# or C++ here ^_^
0
jmales

jmales

NA 5 0 20y
Thanks, but I already got it to work with unsafe code. This is how it looked: typedef void __stdcall FoundPidFunction ( unsigned char *pData, } However, I want it to work with safe code. Am I asking too much from MS? Josh
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bilnaad

bilnaad

NA 686 0 20y
maybe it's easier to use unsafe code. Let the unmanaged function return a pointer to the first byte in the array. Let that function take a parameter in wich to store the length of the array. Then you could use unsafe C# code to get the byte array. int length; byte* ptr = UnmanagedFunction(&length); byte[] bytes = new bytes[length]; for(int i = 0; i < length; i++) { bytes[i] = *(ptr+i); }