C# Discussion Boards - CodeProject

Martin#24-Aug-06 21:41

24-Aug-06 21:41

sikandarhayat wrote:
i want a perticular lable

Whats different on this label?

Re: how to get single item in foreach loop ?? [modified]

sikandarhayat24-Aug-06 21:54

sikandarhayat

24-Aug-06 21:54

actually clscollection class contain a list of labels
and i want if a perticualr label name equals"name" which is exists in the collection class.

how can i extract it.

thanks for reply

sikandar

Martin#24-Aug-06 22:16

24-Aug-06 22:16

Hello,

Got it now!

foreach(Label l in clscollection)
{
if(l.Name == "yourename")
{
//thats it
}
}

All the best,

Martin

-- modified at 4:17 Friday 25th August, 2006

sikandarhayat25-Aug-06 0:04

sikandarhayat

25-Aug-06 0:04

hi
no not in that way
i mean is there any other way loop mean continous searching i want to save time i do not want to compare just assign of perticular.

if possible

thanks.

sikandar

Guffa25-Aug-06 0:08

Guffa

25-Aug-06 0:08

An ArrayList (the inner list of the CollectionBase) has nothing that supports accessing items in any other way.

You can use a HashTable and use the name of the label as key, then you can access the labels directly by name.

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Coding C#25-Aug-06 3:15

Coding C#

25-Aug-06 3:15

Hi,

you can use

lbl.Name ie,

if (lbl.Name.Equals("your constant value"))
{
//your code goes here
}

property.

hope this works.

Nitin...

Ennis Ray Lynch, Jr.25-Aug-06 3:22

Ennis Ray Lynch, Jr.

25-Aug-06 3:22

Double up the collection. Often I will use both a list and a hash in 1.1. I use the list for iteration and the hash for indexing. If the data is good enough I will keep it in an Array List sorted and Binary Search it.

On two occasions I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question. - Charles Babbage

GraphicsState and hardware

Scott Dorman1-Sep-06 14:08

Scott Dorman

1-Sep-06 14:08

Since you mentioned that clsLabelCollection inherits from CollectionBase, it should have a Contains and an IndexOf method.

Assuming that both of these are actually implemented in the collection class, you can use them to find a specific clsLabels instance:

clsLabels l = null;
if (m_clsLabelCollection.Contains("value"))
{
int i = m_clsLabelCollection.IndexOf("value");
l = m_clsLabelCollection[i];
}

You can also iterate over the collection (using foreach) and explicitly test to see if the current item is equal to the one you want. When you find the match, break out of the loop.

This would be something like this:

clsLabels l = null;
foreach(clsLabels lbl in m_clsLabelCollection)
{
if (lbl.label == "value")
{
l = lbl;
break;
}
}

I'm assuming that lbl.label is a string field and that you are looking for the label "value".

s o v a n n24-Aug-06 21:25

s o v a n n

24-Aug-06 21:25

Hello!

How many GraphicsState can we save. Does it depend on hardware capability? If so, how to get that stack size?

<br />
GraphicsState state1 = g.Save();<br />
   GraphicsState state2 = g.Save();<br />
      GraphicsState state3 = g.Save();<br />
         ...<br />
      g.Restore(state3);<br />
   g.Restore(state2);<br />
g.Restore(state1);<br />

]

Thank you.
Sovann

Re: GraphicsState and hardware

leppie25-Aug-06 0:30

leppie

25-Aug-06 0:30

s o v a n n wrote:
If so, how to get that stack size?

I dont think you want to call that recursively, its a rather expensive operation. Performace will be terrible before you hit stack overflow.

xacc.ide-0.2.0.57 - now with C# 2.0 parser and seamless VS2005 solution support!

ListBox With Tree

Aslam Bari24-Aug-06 21:05

Aslam Bari

24-Aug-06 21:05

Dear All,
I am showing some thumbnail pictures in a listbox. Thumbnails have category. Now I want to show tumbnails category wise in ListBOx. So that i can expand or collapse each category to see thumbnails like tree view. Have anybody some idea about it?

Re: ListBox With Tree

CooperWu24-Aug-06 23:19

CooperWu

24-Aug-06 23:19

can you use a listview but listbox?
because the listview has SmallImageList property. it can show picture on a item.

DateTime.ParseExact method query [modified]

chandler8324-Aug-06 20:48

chandler83

24-Aug-06 20:48

hi all,

i need to know wht input will satisfy this condition

DateTime tm=DateTime.ParseExact(sar[1],new String [] {"t","T"},CultureInfo.CurrentCulture,DateTimeStyles.AllowWhiteSpaces|DateTimeStyles.NoCurrentDateDefault);

in this above sar[] wht should i pass in

this below is my method which accepts DayofweekandTime as input.

String [] sar=delay.Split(new char [] {' '});
if(sar.Length<2) return DateTime.MinValue;
sar[0]=sar[0].Trim().ToUpper();

DateTime tm=DateTime.ParseExact(sar[1],new String [] {"t","T"},CultureInfo.CurrentCulture,DateTimeStyles.AllowWhiteSpaces|DateTimeStyles.NoCurrentDateDefault);

tm=new DateTime(2003,1,6)+new TimeSpan(0,tm.Hour,tm.Minute,tm.Second,tm.Millisecond);

for(int i=0; i<7; i++) { if(tm.ToString("ddd").ToUpper()==sar[0]) return tm; tm+=new TimeSpan(1,0,0,0); }
return DateTime.MinValue;

thanks in advance....

-- modified at 2:48 Friday 25th August, 2006

Re: DateTime.ParseExact method query

Guffa24-Aug-06 21:57

Guffa

24-Aug-06 21:57

You can input anything that matches the ShortTimePattern or LongTimePattern of the current culture.

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Get Form's textBox value into Crystal Reports text Object

M Riaz Bashir24-Aug-06 19:53

M Riaz Bashir

24-Aug-06 19:53

Hi Dear Respected Programmers

Kindly give me the solution that, How may I get Form1.textBox1.Value into my crystalReport1 ==>> Text1

Thank you very much in Advance
and
Have a nice day Smile | :)

Re: Get Form's textBox value into Crystal Reports text Object

Coding C#24-Aug-06 20:26

Coding C#

24-Aug-06 20:26

Hi.

you can use parameter property of Crystal report.
add the parameter in the crystal report and then set its value from your code.

hope this works.

Nitin...

get char from KeyChar

Tyrus18224-Aug-06 18:47

Re: get char from KeyChar

24-Aug-06 18:47

Hello in keypress event for a text box i want to convert the e.KeyChar into the actual character how do i make it do this?

Martin#24-Aug-06 19:15

Re: get char from KeyChar

24-Aug-06 19:15

Hello Tyrus,

I think two things are possible here.

Inside your keypress event:

1)
if(e.KeyChar == ??)
{
e.Handled = true;
SendKeys.Send("{???}");
}

2)
if(e.KeyChar == ??)
{
e.Handled = true;
textbox.Text.Insert....
}

All the best,

Martin

Tyrus18224-Aug-06 19:23

Re: get char from KeyChar

24-Aug-06 19:23

no im actualy an idiot apparently KeyChar is already a char :P not an enumeration.

Martin#24-Aug-06 19:27

Can not bind the data to the list view

24-Aug-06 19:27

Ohhh,

then I didn't got youre question!

All the best,

Martin

Sri harini24-Aug-06 18:37

Sri harini

24-Aug-06 18:37

Hi,

I am Developing an application for Windows Mobile,Using VS2005 c# and SQLite Database.

I cannot bind the data to the List View as Columns, I can bind only one column.

Please,Anybody help me

disable paste in a textbox

Tyrus18224-Aug-06 18:04

Re: disable paste in a textbox

24-Aug-06 18:04

hi id like to prevent people from pasting in my text box what is the best way to trap the keyboard commands and stop the paste menu from poping up on right click?

Martin#24-Aug-06 19:20

Re: disable paste in a textbox

24-Aug-06 19:20

Hello Tyrus,

In this case you should use the KeyDown Event.

this.textbox.KeyDown += new KeyEventHandler(CheckKeys);<br />
<br />
<br />
private void CheckKeys(object sender, KeyEventArgs e)<br />
{<br />
	if (e.Control && e.KeyCode == Keys.V)<br />
		e.Handled = true;<br />
}

All the best,

Martin

Tyrus18224-Aug-06 19:28