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If you both declare and instantiate any field inside a code block, it cannot be accessed from outside that block.
Solution, move the declaration to be a field of the class.
Instead of
private void MyForm_Load(object sender, EventArgs e)
{
string myString = "Fred";
..........
..........
..........
}
use
private string myString;
private void MyForm_Load(object sender, EventArgs e)
{
myString = "Fred";
..........
..........
..........
}
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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Oh, silly me... Looks like I need to buy another book on C#. I've been trying to do this for a few weeks now but too embarrassed to ask about it until now lol. Thank you for the quick and helpful reply Mr. Henry Minute.
regards,
jay.
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Hi Guys. I have been pulling out the last hair on my head with this one.
I have two files, one with a list of numbers and another file containing more data. I want to take the data from file 1 and use that to search file2 for the same value and out put another value from file1 to a new file. I have now tried numerous ways of writing this and it just doesn't work. Below is a snippet of my code. The foreach statement doesn't work and if I run it without the foreach statement it only reads the first line of file 1 and doesn't continue to the next line.
while (!sr1.EndOfStream)
{
holdLineHid = sr1.ReadLine();
holdLineNot = sr.ReadToEnd();
if (String.IsNullOrEmpty(holdLineHid) || String.IsNullOrEmpty(holdLineNot))
continue;
string hid1 = holdLineHid.Substring(0, 11);
string newhid = holdLineHid.Substring(14, 11);
string hid2 = holdLineNot.Substring(0, 11);
string notremainder = holdLineNot.Substring(11, 683).Trim();
foreach (String hid in holdLineHid)
{
if (hid1 == hid2)
{
sw.WriteLine(newhid + notremainder);
}
For instance:
In File1 I have the following:
<br />
C0000000001 C0000013456<br />
C0000000002 C0003245678<br />
In File2 I have the following data:
<br />
C0000000003N Y Trem Chat<br />
C0000000005Y C Just Data<br />
C0000000001N D This Must Match<br />
How do I get this to run properly?
Thanks in advance.
Excellence is doing ordinary things extraordinarily well.
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The easiest way is too read the file using :
string[] lines = File.ReadAllLines(@"c:\myfile.txt");
Then just use:
foreach(string line in lines)
{
//... do what you want here...
}
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Thanks mate. I'll give this a go this evening and see how it works.
Excellence is doing ordinary things extraordinarily well.
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your foreach will only loop once as your only giving in one string in the holdLineHid (which i assume is a string)
what you want to do is create a streamreader for file 1.
Read the first line into a string and then create a while loop while not null ...
StreamReader sr = new StreamReader("file1");
string line = sr.ReadLine();
while(line != null)
{
line = sr.ReadLine();
}
sr.close();
Now, in your instance for file 1 you have put two id numbers on each line. Are they one per line in the file? or is there more than one on each line?
Then in your while loop, where i put the comment you could do the following...
StreamReader sr2 = new StreamReader("file2");
string line2 = sr2.ReadLine();
while(line2 != null)
{
string hid = line2.Substring(0, 11);
if(hid == line1)
{
break;
}
line2 = sr2.ReadLine();
}
sr2.Close();
That should do what you want
Life goes very fast. Tomorrow, today is already yesterday.
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Hi Mate. I get the jist of this but it seems that the code you have given above puts me in an infinate loop. TO answer your questions:
musefan wrote: Are they one per line in the file? or is there more than one on each line?
File 1 contains +- 1000 lines with two ID's on each line, the first ID is the one to matched to file2 and the second ID is trhe one to be written to the output file along with the remainder of the data on the matching line of file2.
Hope this makes sense. Almost like doing a match in Microsoft Access and then output a combination of the data from the two files.
Excellence is doing ordinary things extraordinarily well.
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Does anybody know why I can't instantiate a form in my program.cs class. I'm developing a solution with multiple projects. Some are win form applications, some are class libraries and some are web applications. In this case i'm working with a win forms application. I have created forms in another project and I wish to add them to a the new win form project. Intellisense is not picking up the class names. I've also made sure that the forms use the correct namespace but with no success.
Help please!
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Have you added the other project to the current project's references?
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No. I'm trying to merge the two projects into one project. There is an existing project and I'm just adding the form classes. Not the project itself. By just adding the new project and setting the references I'm able to access those forms that i need. Unfortunately my bosses don't want the solution working in that way. thus I'm forced to merge the two. I'm adding the forms classes under a folder and not in the root of the project. I can even view them in the designer. I've never encountered this problem before.
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Have you added the other project(s) to thi project's references?
Have you added the correct using (s) at the top of the file (or used fully qualified names)?
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
Why are you using VB6? Do you hate yourself? (Christian Graus)
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How about the .designer.cs file? Does that have the correct namespace?
If none of that works, temporarily comment out any references to the merged forms, clean the solution and do a rebuild.
If none of that works, I give up, although obviously you can't.
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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The .designer.cs files all contain the correct namespace. I've tried rebuilding - no success. Cleaned the solution as well. Strange thing is that I can't access the folder in my using directives.
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Is it a permissions/trust thing?
If one machine is Vista and the other XP, this can cause problems.
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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No, both projects reside om one machine running xp. I'm going to create new forms in the current project and rename them exactly the same as the forms in the other project and then attempt to replace them. Hopefully this'll work.
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Good old brute-force! 
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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Didn't work.  Now I have to copy-paste all the code 
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Hello.
I'm looking for a wey how to enable my custom toolbar from code (C# , regedit etc.)
The problem is. I have installer with a toolbar and after installation user chould ebable it manually by using mouse right button. I want to enable it automatically.
Do you have any ideas how to enable it ?
Vladimir
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Take a look at Extending Explorer with Band Objects using .NET and Windows Forms[^]. It would seem to be at least a good starting point.
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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okay i need some help with my Linq to Xml code, i want to check if the new XElement that im about to create has the same XAttribute as an old XElement, if it has the same XAttribute as another XElement then instead of adding a new XElement with same XAttribute i want it to replace the old one.
This is my c# code:
string calendarxml = "C:/Users/Miro/Documents/Visual Studio 2008/Projects/Post-it/Post-it/CalendarXml.xml";
XElement doc = XElement.Load(calendarxml);
XElement root =
new XElement("CalendarNote",
new XAttribute("Date",
monthCalendar1.SelectionStart.ToString("dddd dd MMMM yyyy")),
textBox1.Text);
doc.Add(root);
doc.Save(calendarxml);
and the output in my xmlfile looks like this:
<calendar>
<CalendarNote Date="söndag 17 maj 2009">asdasd</CalendarNote>
<CalendarNote Date="lördag 16 maj 2009">123123</CalendarNote>
<CalendarNote Date="söndag 17 maj 2009">asdad</CalendarNote>
<CalendarNote Date="lördag 16 maj 2009">123123</CalendarNote>
<CalendarNote Date="söndag 17 maj 2009">asdads</CalendarNote>
</calendar>
i dont want to have three söndag 17 maj 2009 and two lördag 16 maj 2009, i want just one, instead of adding a new one with same attribute i want it to replace the old one.
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hello
I ran into this, apparently it has to do with remoting permissioning. I have no idea where to start and my brain is fried... it seems like it happens after I signed my assemblies but since there're many dll's I signed not sure if I want to unsign them to confirm this.
<br />
Server stack trace: <br />
at System.Runtime.Serialization.FormatterServices.GetSafeUninitializedObject(Type type)<br />
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ParseObject(ParseRecord pr)<br />
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Parse(ParseRecord pr)<br />
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryObjectWithMapTyped record)<br />
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryHeaderEnum binaryHeaderEnum)<br />
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()<br />
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)<br />
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)<br />
at System.Runtime.Remoting.Channels.CoreChannel.DeserializeBinaryRequestMessage(String objectUri, Stream inputStream, Boolean bStrictBinding, TypeFilterLevel securityLevel)<br />
at System.Runtime.Remoting.Channels.BinaryServerFormatterSink.ProcessMessage(IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders, Stream& responseStream)<br />
<br />
Exception rethrown at [0]: <br />
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)<br />
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)<br />
at Util.Command.CommandRunner.set_Commands(List`1 value)<br />
at RemotingInterfaceInteractiveClient.Program.ProcessCommandFile(RemotingClientSetup& oSetup) in C:\...\RemotingInterfaceInteractiveClient\Program.cs:line 163 {Inner Exception: System.Security.SecurityException: Request failed.<br />
at System.Runtime.Serialization.FormatterServices.nativeGetSafeUninitializedObject(RuntimeType type)<br />
at System.Runtime.Serialization.FormatterServices.GetSafeUninitializedObject(Type type)<br />
The action that failed was:<br />
Demand<br />
The type of the first permission that failed was:<br />
System.Security.PermissionSet<br />
The demand was for:<br />
<PermissionSet class="System.Security.PermissionSet"<br />
version="1"<br />
Unrestricted="true"/><br />
<br />
The only permitted permissions were:<br />
<PermissionSet class="System.Security.PermissionSet"<br />
version="1"><br />
<IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"<br />
version="1"<br />
Flags="SerializationFormatter"/><br />
</PermissionSet><br />
<br />
The method that caused the failure was:<br />
System.Runtime.Remoting.Channels.ServerProcessing ProcessMessage(System.Runtime.Remoting.Channels.IServerChannelSinkStack, System.Runtime.Remoting.Messaging.IMessage, System.Runtime.Remoting.Channels.ITransportHeaders, System.IO.Stream, System.Runtime.Remoting.Messaging.IMessage ByRef, System.Runtime.Remoting.Channels.ITransportHeaders ByRef, System.IO.Stream ByRef)<br />
Any suggestion how to approach this sort of problem?
Many thanks!
dev
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I have created Windows Form application in VS 2008 using C#. In this application, I have created Crystal Report. Now I want to embed flash file (i.e. SWF file) into this Crystal Report.
I do not find any option to add Flash File into Crystal Report. How can I do it?
Please, help if have any idea about it.
Thanks.
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Dear All,
I am working on grid view i wana to assign paging index as like in google page with a constant range like 1 to 25.
Can any one guide me what i have to do for this
Please do replay..
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well you could load all your rows into a datatable or something, then you create a bunch of buttons to act as page numbers, or a drop down list, based on the number of rows in the datatable.
So if you have 128 rows you could do...
int numberOfPages = numRows % 25 == 0 ? numRows / 25 : numRows / 25 + 1;
then on each button click, you load the first 25 result starting at a number obtained by...
int startRowNumber = (pageNumber - 1) * 25;
Alternatively you can get the startRowNumber and search you datasource for each page load. Depending on what your data source is will depend how you could do this. Some databases have functionality to specify a results count and start value. But you will have to look into that yourself
Life goes very fast. Tomorrow, today is already yesterday.
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 I want to close a form after showing another form from this form and other form still shown.
(in general whole application is closed)
ankur bansal
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