c# and xml - C# Discussion Boards

Re: Mouse Events

rich_wenger11-Nov-05 5:53

rich_wenger

11-Nov-05 5:53

Your solution works except for the following statment:

Gulfraz Khan wrote:
if (ctrl.HasChild == true)

It should actually read:
if (ctrl.HasChildren == true)

Thanks again.

From designer, create a component passing parameters

monteiz10-Nov-05 3:36

monteiz

10-Nov-05 3:36

Hi there,
i'm searching for a way to create a component from a control designer, and pass some parameters to it.

This create an instance of my object:

<br />
IDesignerHost h = (IDesignerHost)GetService(typeof(IDesignerHost));<br />
MyComponentType myComponent = (MyComponentType )h.CreateComponent(typeof(MyComponentType));<br />

What if i want to pass parameters to it?

Bye.

Re: From designer, create a component passing parameters

monteiz10-Nov-05 4:01

monteiz

10-Nov-05 4:01

I will go deeper in my question.

I have already implemented a typeConverter for my component, which looks like that:

public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destType)
{
    if (destType == typeof(InstanceDescriptor))
    {
        System.Reflection.ConstructorInfo ci = typeof(FlatTabPage).GetConstructor(new Type[] { typeof(TypeOfTheParameterIwantToPass) });

        return new InstanceDescriptor(ci, new object[] { i think the problem is here });
    }

    return base.ConvertTo(context, culture, value, destType);
}

Where i wrote I think the problem is here, i want to pass the control that actually is being designed. That is, i am designing a control A, and i want to create an instance of control B (from the A designer) passing A itself to it.

Textbox

PaulaM10-Nov-05 2:50

PaulaM

10-Nov-05 2:50

My application has a textbox,how can i make my textbox
enter numeric velues only Smile | :)

thanks

regards paula

Re: Textbox

S. Senthil Kumar10-Nov-05 3:48

S. Senthil Kumar

10-Nov-05 3:48

Did you try overriding the ProcessCmdKey[^] method?

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: Textbox

Gulfraz Khan10-Nov-05 6:17

Gulfraz Khan

10-Nov-05 6:17

Did you try the google?

Re: Textbox

Craig G Fraser10-Nov-05 22:23

Craig G Fraser

10-Nov-05 22:23

A Simple way is to use the textbox's KeyPress Event. Check for the key pressed and if it is not a valid key then cancel the event (e.cancel) which will cause the key value not to be displayed.
The code below is an example of the KeyPress event for a textbox that only allows Numerics.

Hope this helps,

Craig

private void txtValue_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)<br />
		{<br />
			string s = "0123456789" + (char)8 + (char)9 ;<br />
			if (s.IndexOf(e.KeyChar.ToString().ToUpper(),0) ==-1)<br />
			{<br />
				e.Handled = true;<br />
				return;<br />
			}<br />
		}

c# and xml

ginopilotino8210-Nov-05 2:11

ginopilotino82

10-Nov-05 2:11

i say you sorry for my bad english.
i've a problem with this code:

XmlTextReader reader = new XmlTextReader(@"c:\book.xml");<br />
					XmlDocument doc = new XmlDocument();<br />
					doc.Load(reader);<br />
<br />
					XmlNodeList nodeList;<br />
					XmlElement root = doc.DocumentElement;<br />
<br />
					nodeList = root.SelectNodes("/bookstore/book/price[text()='11.99']");<br />
<br />
					XmlElement newCd;<br />
					XmlNode padre;<br />
<br />
					foreach (XmlNode oldCd in nodeList) <br />
					{<br />
						newCd = doc.CreateElement("author");<br />
<br />
						newCd.SetAttribute("visible", "true");<br />
		<br />
						newCd.InnerXml = oldCd.InnerXml;<br />
		<br />
						padre = oldCd.ParentNode;<br />
						padre.ReplaceChild(newCd, oldCd);<br />
					<br />
<br />
					}<br />
					doc.Save(@"c:\prova2.xml");

i have an XML with this structure:

<br />
bookstore<br />
    book<br />
        price 11.99 /price<br />
        author .. author<br />
        title .. /title<br />
         ..<br />
         ..<br />
    /book<br />
/bookstore<br />

if in the code I write

nodeList = root.SelectNodes("/bookstore/book/price[text()>'11.00']");

the nodeList has 1 node because the expression is ok but i don't understand the reason that I write

nodeList = root.SelectNodes("/bookstore/book/price[text()='11.99']");

the nodeList.Count() results 0 and the program returns that there are no nodes matching the expression. the same thing happens if i try to test the content of title, author etc.

Can you help me? Sigh | :sigh:

Re: c# and xml

S. Senthil Kumar10-Nov-05 4:08

S. Senthil Kumar

10-Nov-05 4:08

Works fine for me. Maybe you are loading the wrong XML file? This is the code I used.

XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
XmlNodeList list = doc.DocumentElement.SelectNodes("/bookstore/book/price[text()='11.89']");
Console.WriteLine(list.Count);

and this is the XML file I used

<bookstore>
   <book>
	<price>11.99</price>
	<author>X</author>
	<title>Z</title>
   </book>
</bookstore>

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: c# and xml

ginopilotino8210-Nov-05 4:49

ginopilotino82

10-Nov-05 4:49

Hi Senthil,
I say you thank you for your reply!!! Smile | :)

)))
I still have a problem; if i have a document named book.xml in C:\ this code i wrote doesn't work Frown | :(

XmlTextReader reader = new XmlTextReader(@"c:\book.xml");
XmlDocument doc = new XmlDocument();
doc.Load(reader);

XmlNodeList nodeList;
XmlElement root = doc.DocumentElement;

// nodeList = root.SelectNodes("/bookstore/book/price[text()>'9.00']"); <-- this query works

nodeList = root.SelectNodes("/bookstore/book/price[text()='11.99']"); // <-- this query doesn't work

Console.Write(nodeList.Count.ToString());

if i can't solve this problem my work doesn't go on Frown | :(

Re: c# and xml

S. Senthil Kumar10-Nov-05 5:25

S. Senthil Kumar

10-Nov-05 5:25

Well, the only thing I can think of is that your XML file might be different. Did you make sure it's exactly the same as you posted?

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: c# and xml

ginopilotino8210-Nov-05 5:48

ginopilotino82

10-Nov-05 5:48

oh my god i found the problem...
there was an error in the xml...and i spent more than 4 hours on this problem... Frown | :(

thank you Senthil Smile | :)

Show more than one row on the datagrid's Footer

Fendefa10-Nov-05 1:51

Fendefa

10-Nov-05 1:51

Could someone help me with showing three summary rows on the footer of the datagrid. I need to calculate sales total for and individual.
Then the total for all the sales assistance and lastly
the grand total for the whole department.

Any ideas

Locating App path

Mark0610-Nov-05 1:50

Mark06

10-Nov-05 1:50

Hi,
I'm trying to create a log file in my application folder.
Have tried:
just "Applog.txt"
"..\Applog.txt"
"\Applog.txt"
"\\Applog.txt"

With no luck.

But if I do
"c:\\Applog.txt"
that works fine.

So what can I use to get the applog in my application folder.
Is there a function return the location from the assembly?

Regards

Re: Locating App path

S. Senthil Kumar10-Nov-05 3:44

S. Senthil Kumar

10-Nov-05 3:44

You are looking for Application.StartupPath[^].

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: Locating App path

AETaylor10-Nov-05 22:09

AETaylor

10-Nov-05 22:09

Have you tried @".\Applog.txt"

I always do as Senthil suggested:

string fileSpec = string.Format("{0}{1}Applog.txt", Application.StartupPath, Path.DirectorySeparatorChar);

How To Rotate a 2d rectangle dynamically with Mouse movements in C sharp

ArunNeyaaSoft10-Nov-05 1:43

ArunNeyaaSoft

10-Nov-05 1:43

Hi

Please Help in this situation

I have created an application to draw a image that contains Rectangles and others as a images. I just add them in the Picture box. I have completed up to creating the images but the problem comes when i want to rotate the images using the mouse. Not by using the angles given to text boxes. We have to predict the mouse movements and then we have to find the angle of the rotation for that angle we have to rotate the object. Is there any specific algorithm for that. I just have the contrl to the picture box.

With Luv,
Arun R.

-- modified at 7:44 Thursday 10th November, 2005

How To Rotate a 2d rectangle dynamically

ArunNeyaaSoft10-Nov-05 1:43

ArunNeyaaSoft

10-Nov-05 1:43

Rectangle and Measurement Studio

M.Friedel10-Nov-05 1:41

M.Friedel

10-Nov-05 1:41

Hi!

I'm using Measurement Studio 7.1.
I have the problem to get a rectangle into a graph which shows
measurement data.
This rectangle should be as scrollable and zoomable as the
graph but my rectangle i insert is fix on the screen.
e.Graphics.DrawRectangle(new Pen(Color.Turquoise,2),10,10,50,50);// works!!! but without scrolling and zooming

Hope you can help me.

M.Friedel

Is it in as for Internet Files, Cookie, and History?

yamadakun10-Nov-05 1:09

yamadakun

10-Nov-05 1:09

I want to delete Temporary Internet Files, Cookie, and History by using C#.
However, the sample etc. were not found though I searched the Internet.
Please teach when you have the sample and information.

problem with moving to vs 2005

Gil.Schmidt10-Nov-05 0:33

Gil.Schmidt

10-Nov-05 0:33

hello

i tried getting my old project that deals with processes into the new shiny c# 2005 and when i try running i get access denied from the 'System Idle Process' Process object when i try pulling the data out of TotalMilliseconds value (it worked just fine in vs2003) anyone got a clue on how to fix this?

thanks Gil

Multiple Connections

Rashid.Mahmood9-Nov-05 23:48

Rashid.Mahmood

9-Nov-05 23:48

Is it possible for a single client to have multiple connectiosn
with a single host?
if so how?

Re: Multiple Connections

Gulfraz Khan10-Nov-05 6:22

Gulfraz Khan

10-Nov-05 6:22

Are you talking about Database connections?

Re: Multiple Connections

Rashid.Mahmood11-Nov-05 2:34

Rashid.Mahmood

11-Nov-05 2:34

Dear i m asking about socket based client server
architecture.

About pdb file in C#

webC#9-Nov-05 22:49

webC#

9-Nov-05 22:49

When pdb file is generated ? Why it is generated while building a solution in Debug Mode ? Why is it not generated in Release Mode ? What is the difference between Debug Mode Build and Release Mode Build?

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