|
Hi,
I am getting Cryptographic Exception while calling FlushFinalBlock method of CryptoStream after decrypting a buffer. Here is my code that decrypts the buffer....
DESCryptoServiceProvider des=new DESCryptoServiceProvider();
des.BlockSize=blockSize;
des.Key=kDESKey;
des.KeySize=64;
des.Padding=PaddingMode.PKCS7;
des.Mode=CipherMode.ECB;
ICryptoTransform cryptoTransform=des.CreateDecryptor();
MemoryStream mem=new MemoryStream();
CryptoStream cryptoStream=new CryptoStream
mem,cryptoTransform,CryptoStreamMode.Write);
byte[] outputBuffer=new byte[cipherTextBytes.Length];
cryptoStream.Write
(cipherTextBytes,0,cipherTextBytes.Length);
cryptoStream.FlushFinalBlock();
outputBuffer=mem.ToArray();
cryptoStream.Close();
mem.Close();
return removeLength(outputBuffer);
As soon as i call FlushFinalBlock it throws Cryptgraphic exception with message BadData. Please help me to solve this problem...
Wasif Ehsan.
|
|
|
|
|
Hi,
I want to detect different objects with in an image using C# sharp.Then i will pick req object only from the image after applying pattern matching. So plz gide me for that and also indicate some libaray if there in C# Sharp for objects finding
|
|
|
|
|
Hi,
To deploy an asp.net 2.0 site onto the live machine, should it have IIS as well as .net 2.0 framework?
Does this mean that I have to instal VS2005 on the LIVE machine first before deployment?
Basically what should be installed on the LIVE machine please?
Thanks
|
|
|
|
|
hi,
ofcourse you need iis,its not nessary to install VS2005. you can download net framework 2.0 redistributable and install in live machine.
if the live machine has autoupdate on for windows update,it will be there.
you can verify it in IIS properties.
good luck
Where there is a will,there is a way.
|
|
|
|
|
how to assing data to a DataTable. plz help me.
|
|
|
|
|
what do you want to do exactly ??
Tamimi - Code
|
|
|
|
|
want to put values in a datatable.
|
|
|
|
|
Use following syntax
DataTable.Rows[index].Columns[name/index]=value;
If you need more guidance, feel free to reply again
Wasif Ehsan
|
|
|
|
|
hi:
DataTable objTable = new DataTable();
DataColumn col1 = new DataColumn("id");
DataColumn col2 = new DataColumn("Name");
objTable.Columns.Add(col1);
objTable.Columns.Add(col2);
DataRow objRow = objTable.NewRow();
objRow["id"] = "1";
objRow["Name"] = "Tamimi";
objTable.Rows.Add(objRow);
Tamimi - Code
|
|
|
|
|
Actualy want to put the values of DataGrid into a DataTable.how is it possible.plz help me.
|
|
|
|
|
Hi foysal cool,
I think you want to build the data table with only selected data's from datagrid ok, if it is true then you have to get the datagrid row(cell's) value by travelling through whole datagrid.
To get the datagrid cell value:
Create obj for datagrid item for that datagrid then get the value of that particular row.
foreach(DataGridItem dgi in DataGrid1.Item)
{ string name=dgi.cells["column name1"].ToString();
............
..........
}
Best Regards.,
ranandbe
-- modified at 5:06 Monday 5th June, 2006
|
|
|
|
|
lets say datatable1 and datagrid1 ...
put the the datasource for datagrid1 = datatable
then whatever you change in the grid will reflect
on the datatable1 , then use datarow.rowstatus or
datatable.getchanges to get all the changed rows
Tamimi - Code
|
|
|
|
|
|
You must set the Multiline property to true.
|
|
|
|
|
Use RichTextBox instead of TextBox.
For new line, use "\n"
|
|
|
|
|
Thanks..It Works Properly
Rahul Kulkarni
|
|
|
|
|
\n would work fine on Windows, but if your program is expected to be platform independent, use System.Environment.NewLine instead.
Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro
|
|
|
|
|
Set the MultiLine property to true, then \n will work.
Wasif Ehsan
|
|
|
|
|
Set the MultiLine property to true and to create a new line, you can use \r\n.
|
|
|
|
|
How can I get my app to display as a mini toolbar in Windows? (Like the one Windows Media Player uses)
It must be fixed to the toolbar on the bottom of the screen.
|
|
|
|
|
i want gene a rpt for c# file using crystal reports database:sqlserver
|
|
|
|
|
Good luck with this.
If you run into any problem with this and have any questions, feel free to ask them here in the forum.
---
b { font-weight: normal; }
|
|
|
|
|
hi all,
just wondering the best approach to the following situation:
I have a third party product that uses MS Access as backend and I am developing an application to enhance that program but I will use SQL database.
What is the best approach to obtain a readonly copy of the third party access database?
Do I just copy the database file then read that into my own application, then delete the copied file?
or
Can i open a read only connection to the MS Access database without disturbing the hosting applications access to the database?
There is no way that I can incorporate the functionality of the existing program into my own [clients budget does not allow for this], although this would be the ideal situation.
I also cannot write to the Access database as the host application fails whenver I change any fields within the database.
I would like to ensure that no data corruption comes about from my application accessing the MS Access databse file.
kind regards,
g00fy
|
|
|
|
|
Hi,
I have an activex control which is written in UnManaged code with the following prototype
void CSimpleAdditionAtxCtrl::VarMethod(VARIANT* VarParam)
{
AFX_MANAGE_STATE(AfxGetStaticModuleState());
}
From the C# i want to call this mwthod
[MarshalAs(UnmanagedType.AsAny)] object fieldIdSA = new string [5];
private void cmdSimpleAddition_Click(object sender, System.EventArgs e)
{
string[] myIntArray = new string[5];
fieldIdSA = myIntArray;
axSimpleAdditionAtx1.VarMethod (ref fieldIdSA); //Call UnManaged Method.
}
Which gives "Type Mismatch" whats wrong with this, please provide me alternate solution.
|
|
|
|
|
Hi all
Just for background information, I'm only just starting out with .NEt C# programming on Excel, which means that i'm not very good at all.. [=o))..
I am trying to write a simple C# program to open up 2 excel workbooks and copy the data from one Excel workbook to another. This process is required to be repeated for more than 20times, for 20 different set of workbooks ofcourse.
I have tried out 2 different methods but both methods take extremely long to complete. I do not understand why as if I do it manually in Excel, the selecting, copying & pasting processes takes 2 seconds to complete. While with the C# program, these processes take about 30 seconds to complete.
Method 1
Create a macro for copying & pasting. Simply pass through the Selection range for copying and pasting. These macros, when run inside Excel, is extremely fast. However when called from the C# program, these macros take forever to complete.
method 2
inside the C# program, use the Range[].Copy method. This takes forever to complete as well.
Can you guys please help me out with this one. That would be absolutely great.
Thanks guys
Kind regards
Sydney_Sider
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
