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Hi,
I have a UserControl that contains a Panel in it.
I add the UserControl to a Form.
I want (at design time) to be able to add, remove, move ,etc, controls on the Panel contained in my UserControl in the same way i would do this if the Panel was placed directly on a Form.
Any Ideas?
Thanks!
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Hi all,
I´m writing a code where I have to serialize an undefined number of objects and need to save all data in a single file. I have created a class to do the task of mapping these objects in the file such a way I can insert and retrieve an object using an identifier. But to finnish this task, I still need some way to know the size in bytes of the objects being serialized to keep track of entries in the file.
Can someone help me? is there some way to get this information from Runtime.Serialization?
I´m using BinaryFormatter.
thanks,
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When you serialize your objects, just check the length of the serialization stream:
Hashtable table = new Hashtable();<br />
table.Add(1, "One");<br />
table.Add(2, "Two");<br />
table.Add(3, "Three");<br />
<br />
BinaryFormatter formatter = new BinaryFormatter();<br />
MemoryStream stream = new MemoryStream();<br />
formatter.Serialize(stream, table);<br />
<br />
long size = stream.Length;
The most exciting phrase to hear in science, the one that heralds the most discoveries, is not 'Eureka!' ('I found it!') but 'That's funny...’
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turbochimp,
It worked fine. thank you. 
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Great! Glad I could help.
The most exciting phrase to hear in science, the one that heralds the most discoveries, is not 'Eureka!' ('I found it!') but 'That's funny...’
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When I run my C# application on the same machine on which Visual Studio is installed it starts up very very quickly. However, when I start it on a machine that does not have Visual Studio installed it takes what seems like minutes before the UI appears. The app is using an XML file for reading in it's parameters and that file is loaded in the Form_Load event. Is it the XML file that is causing the slow startup on machines that do not have Visual Studio? What can I do to make it start just as quickly as it does on my dev box.
Robert
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Does this happen everytime you try to run the app from the non VS.Net machine or just when you deploy a new .exe? by the new .exe i mean new version.
Cheers!
<bold>Looney Tunezez
"If you build it....
.....BUGS will come!" -JB
Application.Run(new Form1(this.Dispose())); <--WHAT :wtf::confused::eek:
"Stability. What an interesting concept" - Chris Maunder
<bold>
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Does the app run faster the second time you load it up? try to have another small C# program running to make sure that the .NET framework is loaded and then see if your programmer is faster. It could be the loading of the framework that is taking some additonal time. It should not be on the level of minutes, but you can run this test to make sure its not the .NET framework loading.
Steve Maier, MCSD MCAD
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It happens every time I load the application. I have 4 different apps that I load on that machine and they all take a very long time to load compared to my development box. The server is a 2.4 GHz dual xeon processor machine running Windows Server 2003, which comes with .NET preinstalled. My dev box is a 2.4 GHz single processor laptop.
I thought perhaps it was because I did not change tempuri.org in the XML file that the app has to load, because the server does not have access to the internet. However, if I delete the tempuri.ord entry I the app still loads slow.
Robert
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Hi!
I have a problem with a project I am currently working on:
I have to modify existing .xls-Files from my c# application, especially the link-paths of cells containing external content (mostly other .xls-files).
I have found several tutorials, etc how to read data from excel, but none how to write data or even links.
Greetings,
Matthias
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Hello everybody,
I am writing an application that due with time. I use the DateTimePicker to get the time from user and store it in a smalldatetime-data-type column in the database. Then, I want to display the time user entered in a DataGrid, but only date is displayed.
For example:
In the database, column 'Time' stores:
01/11/2005 06:25:14
01/10/2005 07:17:24
01/09/2005 08:05:32
And the DataGrid displays:
01/11/2005
01/10/2005
01/09/2005
How can I solve this problem?
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You will have to define the table and column styles for the grid (if not already done). The style class DataGridTextBoxColumn has a Format property where you can set the desired output.
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Thank you for your helping!!!
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Hello,
I have a question regarding a listBox. I am pulling data from a database and displaying the description in the listBox (using is as a search box). I want to be able to double click the description and pass that descriptions unique ID to a new method. Now I can pass the index of the description within the listBox but obviously this is not the same as the data’s unique ID within the database.
The only idea that I have come up with in do a count first, create an array to the size of the count and map the unique ID with the listBox index. This to me seems a very long winded way of going about this.
If anyone has any words of wisdom I will be very grateful.
Thanks.
Harold Clements
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Create a small class or struct which has two properties Description and UniqueId. Override its ToString function so that it return Description. Now you can add instances of this class to the listbox. Now when an item is double clicked just cast the selected item to your newly create class type and get the unique id from the property.
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Hi,
I am creating a generic data access module for an application and I have come across the following problem:
A form calls the function that loads data from a table to a grid. Then the code below is called in order to effect any changes in the dataset. The problem appears with a table that has 43 columns. When in the selectCommand I pass a select statement containing up to 32 columns it works without problems. When I increase the number of columns it gives a "Concurrency violation: the UpdateCommand affected 0 records." exception. Is this some because of some limitation or am I making an error in the code?
The table contains 4555 records
public void SaveDataFromGrid(DataSet dsName, string dtName, string selectCommand)
{
//DGM 20040109
//This code works only for single table updates.
//Create new Connection
OdbcConnection dbConnection = new OdbcConnection(strConnectionString);
//Set the sql command that will fill the dataset
OdbcCommand sqlCommand = new OdbcCommand(selectCommand, dbConnection);
sqlCommand.CommandTimeout = 30;
//Set the sql command that will update the dataset
//Set the data adapter
OdbcDataAdapter dbDataAdapter = new OdbcDataAdapter();
OdbcCommandBuilder cb = new OdbcCommandBuilder(dbDataAdapter);
dbDataAdapter.SelectCommand = sqlCommand;
//Open the connection
dbConnection.Open();
//Fill the dataset with the data
dbDataAdapter.Update(dsName, dtName);
//Close the database connection
dbConnection.Close();
//return true;
}
Thanks in advance for the help
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HI,
is it possible to open words and read it inside my application rather then to read it by double clicking it in windows explorer...
thanks
Josh
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I have some problems when i add some descriptions in a (.wmv) video with Windows Media Encoder SDK.
I got no error, warning or exception. However, no response after execution.
Please help.
Here is part of my code:
using WMEncoderLib;
try
{
Encoder = new WMEncoder();
IWMEncDisplayInfo Descr = Encoder.DisplayInfo;
Descr.Title = "Title";
Descr.Author = "Rock";
WMEncoder Encoder = new WMEncoder();
IWMEncFile2 File = (IWMEncFile2)Encoder.File;
File.LocalFileName = "C:\\OutputFile.wmv";
}
catch (Exception e)
{
}
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hi everybody ........
i'm trying to do connect between 2 computers through the PSTN and send files bet. them, here is the required procedure:
1.comp1 calls(by user) comp2(which is waiting for call all the time).
2.when comp2 recieves the call, it sends(auto) a file to comp1
3.when the file is recieved the call should be ended(auto).
so can any one help,because i dont know how to start.
Is there any api's for hyperterminal that i can use, or can i configure hyperterminal to do such sequence,or ?????
please if anyone know anything that would help, please help me as soon as possible.
thanx.
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Guys,
After compiling successfully my c# program I saw this message from the output box
------ Build started: Project: DTR, Configuration: Debug .NET ------
Preparing resources...
Updating references...
The dependency 'Interop.Microsoft.Office.Core' could not be found.
The dependency 'Interop.Microsoft.Office.Core' could not be found.
Performing main compilation...
Build complete -- 0 errors, 0 warnings
Building satellite assemblies...
---------------------- Done ----------------------
Build: 1 succeeded, 0 failed, 0 skipped"
at the same time I had an abnormal dlow in my program. When I display a certain in a program with the correspong criteria it didn't display the information only the page layout.
/dabuskol
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How can I create an XML file from a Dataset by using the XMLDataDocument class. Can I also verify this file with an XSD before writing.
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hi,
in .net after setting an object refrence to null garbage collector collects the object and frees the resources used for that object.i want to know if there is way to free resources without using GC?
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hi all there, i want a code that help me to insert any file type in a rtf file, i need to insert by code not drag drop by mouse so plzzzzzzzzzzzzz help me ....... 
Thanks alot
Metal Man
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My application logs its operation into a file.
As part of the application when an exception is thrown I am logging the exception.
The log shows the whole exception stacktrace and message in English and it’s fine.
However, when the application is installed on Russian Windows the exception messages (not the stacktrace) is logged in Russian.
How can I cause the exception to be written always in English?
I know that when I change the Thread.CurrentThread.CurrentUICulture to of the thread to CultureInfo.InvariantCulture just before the exception is thrown then the exception message is in English even on the Russian machine.
This solution forces me to change the CultureUI of the all the threads on creation and it’s not nice solution.
Ami
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