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I want to use switch statement in windows form application how to use switch statement through buttons and textboxes ?
am stuck in this code please somebody help me and correct it namespace a
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
string s;
s = textBox1(textBox1.Text);
}
private void button1_Click(object sender, EventArgs e)
{
string s;
textBox1("1","2");
switch(s)
{
case "1":
{ Form2 f = new Form2();
f.Show();
}
}
}
}
}
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i actually want that whatever user enters in the textbox and when click on the enter buttn , i must open the next forms , let suppose if the user enters "1" it must open the form 2, similarly if he enters "2" it should open form 3
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thanx alot , and what is the purpose of combo box ?
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could u please give me /provide me the correct version ? i would be really thankful to you .
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public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
string s;
s=comboBox1.SelectedItem;
switch(s)
{
case "1":
Form2 f=new Form2();
f.Show();
break;
case"2":
Form3 a=new Form3();
a.Show();
break;
}
}
}
}
its giving me some error
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Having read your original code, and the dialog between you and Colin (and admired Colin's patient responses), I want to offer you what I hope you will experience as constructive advice:
I believe you need to get a good book on C#, and really review the basics of the language Types, and, in WinForms, review the various common controls, like ComboBox, etc.
I'd suggest either the latest version of Jesse Liberty's 'Programming C#' (O'Reilly), and, for WinForms, I'd recommend the 2004 edition of Matthew MacDonald's "Pro .NET 2.0 Windows Forms and Custom Controls in C#" (APress) since I think Matthew has a certain "genius" for teaching and building slowly from fundamental concepts. There are, of course, other books on WinForms from Chris Sells (Addison-Wesley), Erik Brown (Manning).
In asking questions on CP, I'd suggest you begin the question with a clear statement of the context you are working in (WinForms ? WPF ? ASP.NET ?), and then a clear statement of what your goal is.
This goal statement can be very general: like: "I want to have a way at run-time in my WinForms application to select a certain type of Form to be created and shown."
best, Bill
"Last year I went fishing with Salvador Dali. He was using a dotted
line. He caught every other fish." Steven Wright
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I am using XDocument to build XML and writing it out using the Save method - I am having all hell on trying to get it to output a pound (£) sign. I have tried different encodings, tried using XmlWriter etc but nothing seems to work.
I have spent all morning reading articles (mainly others asking the same question with not really anything in the way of a reply which works) so how do I get a pound sign into XML? Currently the easiest option appears to be contacting the treasury and asking them to move to the dollar.
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It's has been a while, but can you write out its unicode value of U+00A3?
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I suppose so, do I have to check every single string built into the XML through XDocument and replace pound signs with that?
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I'll see if I can find how we did it in my code base - it was a copy of years ago that I last worked on the xml generator
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Thanks, any help will be much appreciated
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I had a dig around and couldn't find anything in particular for £ signs - so I created this quick stub and it is working as expected for me
XmlDocument doc = new XmlDocument();
XmlNode node = doc.CreateNode(XmlNodeType.Element, "PoundTest", "Dummy");
node.InnerXml = "£";
doc.AppendChild(node);
doc.Save(@"c:\dummy.xml");
which outputs
<PoundTest xmlns="Dummy">£</PoundTest>
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Hmm, the issues I am having are in an attribute and I am using XDocument rather than XmlDocument.
It's interesting yours works though
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Sorry misread the XDocument bit, just added this to my original stub and it still works though
XmlAttribute elem = doc.CreateAttribute("PoundAttribute");
elem.Value = "£";
node.Attributes.Append(elem);
to give
<PoundTest PoundAttribute="£" xmlns="Dummy">£</PoundTest>
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Thanks. Time to scrap XDocument then 
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Here you go
XDocument doc = new XDocument();
XElement node = new XElement("PoundTest", "");
XAttribute attrib = new XAttribute("PoundAttribute", "£");
node.Add(attrib);
doc.Add(node);
doc.Save(@"c:\dummy.xml");
which gives
<?xml version="1.0" encoding="utf-8" ?>
<PoundTest PoundAttribute="£" />
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That works for me too.
Curiouser and curiouser.
Thanks for your help
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Glad I could help - I lived just outside Garforth for 8 years and had many a good night out in Leeds 
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Party central is Leeds although it's a long time since I used to haunt the Phono and the Warehouse
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You helped to fix it. You showed the problem wasn't in XML but in the StreamReader I am using to read the data I build into XML - you have to set Encoding on the StreamReader to Encoding.Default - apparently the default isn't Encoding.Default - Bah!!!
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Haha yeah I've tripped over this one a few times. The default is UTF8, I believe. Took me a while to work out that to read a Windows-ANSI file (what most of us actually have on our disks) you have to set it to Default explicitly.
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The default it provides isn't default enough apparently 
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