file processing time - C# Discussion Boards

Re: multiline textbox to MSDE ntext field ?

Dave Kreskowiak15-Dec-04 12:13

Dave Kreskowiak

15-Dec-04 12:13

The problem appears to be this line:

updateCommand.Parameters.Add(new SqlParameter("@textboxA", SqlDbType.NText,16,"textboxA"));

Your telling it that the parameter is a SQL NText field that is 16 bytes long. The type and size value you give it must match the definitions in your database table. If not, you run into screwy problems like this.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Catching Textbox changes on a form

Peter Vertes14-Dec-04 9:04

Peter Vertes

14-Dec-04 9:04

Hello All,

I have a form that has 4 textboxes on it and a button. Initially the button is disabled but as soon as someone types/changes text in one of the text boxes I would like to enable the button. How can I detect changes in a text box ? Do I need to watch out for changes in each individual textbox or is it possible for the form to notify me that one of the textboxes changed ? Thanks in advance...

-Peter

Re: Catching Textbox changes on a form

SeMartens14-Dec-04 9:32

SeMartens

14-Dec-04 9:32

Hi Peter,

I think the simplest solution is to add one EventHandler for the KeyPress-Event for all 4 textboxes.

For example the eventhandler can look like this:

<br />
private void txtTextBox_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) {<br />
<br />
}<br />

To make sure that all 4 Textboxes calls this handler, simply click at the textbox (Forms-Designer in VS.NET) and select the flash-symbol from the properties page. There you have an entry called KeyPress and there you can select the method above.

Now you can call a method in this handler to verify the content of the textbox and do what you want with the button.

Wink | ;)

I hope this helps you.

Sebastian

P.S: Sorry for grammar and spelling...

Re: Catching Textbox changes on a form

Jay Shankar14-Dec-04 13:45

Jay Shankar

14-Dec-04 13:45

To add the posting of Mr. SeMartens. If you want to do some specific task in the keyPress event of a perticular textBox, You can easily do the same. Below example illustrate the same.

//add the event handler to the textBoxes, 
this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBoxesKeyPress);

this.textBox2.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBoxesKeyPress);

this.textBox3.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBoxesKeyPress);

this.textBox4.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBoxesKeyPress);

//
//

private void TextBoxesKeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) 
{
	// do the common processing here i.e. applicable to all the textBoxes
	//.........................
	//
	//processing for specific textBox
	//
	if(sender == this.textBox1)
	{
		//do processing relevent to textBox1 only
		//.......................
	}
	else if(sender == this.textBox2)
	{
		//do processing relevent to textBox1 only
		//............................
	}
	else if(sender == this.textBox3)
	{
			//do processing relevent to textBox3 only
			//............................
	}
	else if(sender == this.textBox4)
	{
		//do processing relevent to textBox4 only
		//............................
	}
	

}

Do revert back whether it could solve your purpose or not

C# Change XML Element content

marker2714-Dec-04 8:24

marker27

14-Dec-04 8:24

Hello guys,
This should have been simple, but im pretty stuck here.

I have an simple XML file where i want to change the content of the file. The file is as follows

config.xml

<Config>
<ReportServer>0</ReportServer>
<LastReportDate>20041214</LastReportDate>
</Config>

is there a simple way to change the content of the elements fx. <ReportServer> to a 1 instead of a 0 ??

Cheers

Ronni

Re: C# Change XML Element content

DavidNohejl14-Dec-04 10:49

DavidNohejl

14-Dec-04 10:49

yes there is simple way, use System.Xml.XmlDocument. Why don't you try XML forums?

David

Never forget: "Stay kul and happy" (I.A.)

Re: C# Change XML Element content

Daniel Turini14-Dec-04 20:17

Daniel Turini

14-Dec-04 20:17

Here's some sample code for you:

using System;
using System.Xml;

class Class1
{
	static void Main(string[] args)
	{
		string xmlpiece = @"<Config>
									<ReportServer>0</ReportServer>
									<LastReportDate>20041214</LastReportDate>
								</Config>
								";
		XmlDocument doc = new XmlDocument();
		doc.LoadXml(xmlpiece);
		XmlNode node = doc.SelectSingleNode("/Config/ReportServer");
		node.InnerText = "1";
		Console.WriteLine(doc.OuterXml);
	}
}

Yes, even I am blogging now!

file processing time

shaw12314-Dec-04 8:20

shaw123

14-Dec-04 8:20

Why my program process a file in 6 minute and if I reprocess same file, it take 6 seconds. I am runing on xp operating system.

Thank you

Re: file processing time

Dave Kreskowiak14-Dec-04 10:35

Dave Kreskowiak

14-Dec-04 10:35

"process" can mean anything! What, EXACTLY, are you talking about?

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: file processing time

Anonymous14-Dec-04 10:42

Anonymous

14-Dec-04 10:42

My program read customer file consist of 9000 records. I process each record and it takes around 6 minutes to process those records, if I re-process this file again, it will take only 6 second to process same input file. It seems like XP operating system keep every thing in memory.

Calling functions

thepersonof14-Dec-04 7:33

thepersonof

14-Dec-04 7:33

Hi I have some strings and for each one I would like to call a specific function.
eg.
bla -> func()
blah -> func2()
etc..

I know I could use a hashtable, except c# doesn't have an eval function (as far as I know). How could it be done? At the moment I've got a switch for this, but this must not be the fastest way.

Thanks

Re: Calling functions

Nick Parker14-Dec-04 15:40

Nick Parker

14-Dec-04 15:40

You should check into System.Reflection[^] namespace, in particular, look at the MethodInfo[^] class, it contains a method called Invoke[^] that will allow you to dynamically call a method based on it's name and some additional information.

- Nick Parker
My Blog | My Articles

Re: Calling functions

thepersonof15-Dec-04 10:04

thepersonof

15-Dec-04 10:04

Thanks very much, I've read a bit about it and come up with this code:

#region Using directives<br />
<br />
using System;<br />
using System.Collections.Generic;<br />
using System.Reflection;<br />
using System.Text;<br />
<br />
#endregion<br />
<br />
namespace ConsoleApplication1<br />
{<br />
    class Program<br />
    {<br />
        static void Main(string[] args)<br />
        {<br />
            Type t = typeof(Program);<br />
            object [] argsg = new object [] {100, 184};<br />
            t.InvokeMember("ComputeSum", BindingFlags.Default | BindingFlags.InvokeMethod<br />
                | BindingFlags.Static, null, null, argsg);<br />
        }<br />
        public static void ComputeSum(int num1, int num2)<br />
        {<br />
            Console.WriteLine(num1 + num2);<br />
            Console.ReadKey();<br />
            return;<br />
        }<br />
    }<br />
}<br />

Why does it generate a "MissingMethodException was unhandled" error?

Thanks again

ListView problem

Sebastien Lachance14-Dec-04 7:23

Sebastien Lachance

14-Dec-04 7:23

I have a Object that inherits from ListViewItem. However, when a add this instance to the ListView, there is no text or whatever in it. If I add a SubItem, then the second column is populated but the first still not.
How can i display the value on my ListViewItem in the first column ?.

Thanks in advance Dead | X|

Well.. later

Re: ListView problem

Hugo Migneron14-Dec-04 8:07

Hugo Migneron

14-Dec-04 8:07

When you create your ListViewItem object, the string you pass as a parameter is what will be displayed in the first column.
For example

<br />
ListViewItem item = new ListViewItem("Text that will be displayed in the first column");<br />
item.SubItem.add("Text that will be displayed in the second column");<br />

Hope this helps

Hugo Migneron

Re: ListView problem

Sebastien Lachance14-Dec-04 8:11

Sebastien Lachance

14-Dec-04 8:11

We can pass a ListViewItem to the items.add methods of the ListView, I can't pass a string since a need to put object into the listview. Sigh | :sigh:

Well.. later

Re: ListView problem

Hugo Migneron14-Dec-04 8:19

Hugo Migneron

14-Dec-04 8:19

I am not sure i understand correctly what you are saying, can you post your code?

Hugo Migneron

Re: ListView problem

Sebastien Lachance14-Dec-04 8:34

Sebastien Lachance

14-Dec-04 8:34

lstServerExplorer.Items.Clear();<br />
			foreach( XmlNode node in xn)<br />
			{<br />
				strProvider = node.ChildNodes[0].InnerText.ToString();<br />
				strServer = node.ChildNodes[1].InnerText.ToString();<br />
				strDatabase = node.ChildNodes[2].InnerText.ToString();<br />
				strUser = node.ChildNodes[3].InnerText.ToString();<br />
				strPassword = node.ChildNodes[4].InnerText.ToString();<br />
				itm = new ConnectionItem(strProvider, strServer, strDatabase, strUser, strPassword);<br />
				lstServerExplorer.Items.Add(itm);<br />
			}

Where itm is an instance of a class that inherits from ListViewItem. Eek! | :eek:

Well.. later

Re: ListView problem

Hugo Migneron14-Dec-04 8:41

Hugo Migneron

14-Dec-04 8:41

I would say you should call the base ListViewItem constructor in the ConnectionItem consctuctor.

public ConnectionItem(strProvider, strServer, strDatabase, strUser, strPassword):base([whatever you want to display in your first column])

Hope this helps!

Hugo Migneron

Re: ListView problem

Sebastien Lachance14-Dec-04 8:51

Sebastien Lachance

14-Dec-04 8:51

You helped me find the solution. I have used base.Text and it finnally work, thank you so much.;)

Well.. later

Traversing Sub Dirs

Anonymous14-Dec-04 6:51

Anonymous

14-Dec-04 6:51

I have a small app that I run on the files in the directory (pulls strings out of .resx files). I want to add a param to that app to do the sub dirs. How can I get all .resx files from the sub directories given a root directory? My guess is to use the Directory.GetDirectories but I bet I have to do it recursively right? Simpler way of doing it?

Any code samples?

Thanks
Darren

Re: Traversing Sub Dirs

Dave Kreskowiak14-Dec-04 7:10

Dave Kreskowiak

14-Dec-04 7:10

Anonymous wrote:
My guess is to use the Directory.GetDirectories but I bet I have to do it recursively right? Simpler way of doing it?

That is the simpler way of doing it. Write a function that takes a path as a parameter. This function will process all the files in that path. Then, it gets the list of subdirectories in that path and, one-by-one, calls itself with the new paths from that list.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Uppercase first letter of string

thepersonof14-Dec-04 6:36

thepersonof

14-Dec-04 6:36

hi how can i make the first letter of a string uppercase and the rest lowercase?

Thanks

Re: Uppercase first letter of string

SeMartens14-Dec-04 7:46

SeMartens

14-Dec-04 7:46

Hi,

i think the following method will be one option:

Divide the string with the substring-method into two pieces and use ToUpper() for the first part and ToLower() for the second one:

<br />
string s = "SOMETHING";<br />
s = s.Substring(0,1).ToUpper() + s.Substring(1, s.Length - 1).ToLower();<br />

Before you execute this, you must be sure that the string has at least one character.

Smile | :)

Hope, this helps you

Sebastian Martens

WMI question

zsiga14-Dec-04 5:30

zsiga

14-Dec-04 5:30

Which CIM object contains information about the current loged-in user?
Thank u for the answers!

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