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Hi guys 
i wanna get url from navigators like ie, firefox nd opera. but when i run the navigator after my application, i get this exception "CallbackOnCollectedDelegate" xD
here's my code
[DllImport("USER32.DLL", EntryPoint = "DdeClientTransaction",
CharSet = CharSet.Unicode, ExactSpelling = true,
CallingConvention = CallingConvention.StdCall)]
private static extern IntPtr DdeClientTransaction(byte[] pData, uint cbData,
IntPtr hConv, IntPtr hszItem, ClipboardFormat wFmt, XTYP wType, uint dwTimeout, ref uint pdwResult);
public static byte[] Request(string item, ClipboardFormat wFormat)
{
try
{
if (hConv == IntPtr.Zero)
return null;
IntPtr hszItem = DdeCreateStringHandle(DDEid, item, CP_UNICODE);
if ((hszItem == IntPtr.Zero) && (item.Length != 0))
return null;
uint res = 0;
IntPtr data = DdeClientTransaction(null, 0, hConv, hszItem, wFormat, XTYP.REQUEST, timeout, ref res);
if (hszItem != IntPtr.Zero)
DdeFreeStringHandle(DDEid, hszItem);
if (data != IntPtr.Zero)
{
uint len = DdeGetData(data, null, 0, 0);
byte[] buffer = new byte[len];
DdeGetData(data, buffer, len, 0);
return buffer;
}
}
catch (NullReferenceException r)
{ System.Windows.Forms.MessageBox.Show(r.Message); }
in the main i call this method to get url like this
NavUrl _navigation = new NavUrl();
IntPtr hffconv = _navigation.Connect("IExplore", "WWW_GetWindowInfo", ref path);
if (hffconv != IntPtr.Zero)
{
byte[] wwwFF = _navigation.Request("0xFFFFFFFF", NavUrl.ClipboardFormat.TEXT);
if (wwwFF != null)
{
urls = System.Text.ASCIIEncoding.UTF7.GetString(wwwFF);
_navigation.Disconnect();
lastIe = urls;
indexTitle = urls.IndexOf("\",\"");
indexTitleEnd = urls.IndexOf("\"", indexTitle + 3);
thank u
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Hi all, I need to format string and having some problems.
when user enter into a textbox i.e "12345678". I need to format
this input into this. "12 345 678". I am doing this way but not working
string p = TextBox.Text.Trim();
string.Format("{0},{1},{2}", p.Substring(0,2), p.Substring(2,4), p.Substring(5,7));
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You should probably remove the comma's from your Format string. The rest is just about adding up your substring index and length values correctly.
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You should replace commas to spaces and String.Format is uppercase in the S
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mabrahao wrote: String.Format is uppercase in the S
Actually, both string and String will work.
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Try this:
string p = TextBox.Text.Trim();
p = string.Format("{0} {1} {2}", p.Substring(0, 2), p.Substring(2, 3), p.Substring(5, 3));
MessageBox.Show(p);
Here is what was wrong with your code:
- Your sample output contains spaces, but your format strong contains commas.
- string.Format returns the modified string, yet you were not assigning the return value to anything.
- string.Substring has 2 parameters. The second prameter is the string length, not a second index. So where you used 4 and 7, you should have used 3.
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Thanks for your reply. it is working for me.
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One thing you should know - the second parameter in Substring is not the position to end on, it's the length of the substring to extract. It goes Substring(index, length);
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You should NOT do this with string manipulations; it would go completely wrong if the user types strange things, such as the intended number prefixed with a lot of zeroes.
The proper way to do this consists of two steps:
1.
parse the user input, i.e. turn his characters into an actual number. The simplest way would be:
int val;
bool OK=int.TryParse(myTextBox.Text, out val);
Whatever the user does wrong (e.g. typing letters, or providing no input at all) will result in OK being false; if the input is acceptable, OK will be true and val will contain its value.
2.
format the number in the way you want it. A simple way to get two spaces in a number assumed to require 8 digits is:
string s=string.Format("{0:## ### ###.##}", val);
Assuming val=12345678 the result will be 12 345 678
Luc Pattyn [My Articles] Nil Volentibus Arduum
The quality and detail of your question reflects on the effectiveness of the help you are likely to get. Please use <PRE> tags for code snippets, they improve readability. CP Vanity has been updated to V2.3
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I always like your answers.
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Could be also
1. If the currect culture uses ' ' as a group separator:
string.Format("{0:n0}", val)
2. If it doesn't:
var provider = (CultureInfo) CultureInfo.CurrentCulture.Clone();
provider.NumberFormat.NumberGroupSeparator = " ";
string.Format(provider, "{0:n0}", val);
Greetings - Jacek
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yes, there are alternatives for each of both steps. Having the two steps was the essence in my message.
Luc Pattyn [My Articles] Nil Volentibus Arduum
The quality and detail of your question reflects on the effectiveness of the help you are likely to get. Please use <PRE> tags for code snippets, they improve readability. CP Vanity has been updated to V2.4
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To be precise: My (1) and (2) were alternatives to your (2). They both assumes that your (1) was already done.
Greetings - Jacek
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Of course; and that is how I understood it.
Luc Pattyn [My Articles] Nil Volentibus Arduum
The quality and detail of your question reflects on the effectiveness of the help you are likely to get. Please use <PRE> tags for code snippets, they improve readability. CP Vanity has been updated to V2.4
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Hi guys, i have a method like this: public List<t> listObj<t>() {}
and i want to instantiate a object with this type T, i tried this: T obj = new T(); doesnt work, so i tried T obj = default(T); and doesnt work too... how can i instantiete this obj??? Thanks.
The code:
public class MysqlDireto
{
private static MysqlDireto _instancia;
private static string connectionstring = "Server=;Database=;Uid=;Pwd=;";
public static MysqlDireto Instancia
{
get { return _instancia ?? (_instancia = new MysqlDireto()); }
}
public List<T> ObterLista<T>()
{
MySqlConnection conn = new MySqlConnection(connectionstring);
string comando = "SELECT * FROM " + typeof(T).Name;
MySqlCommand cmd = new MySqlCommand(comando, conn);
conn.Open();
MySqlDataReader leitor = cmd.ExecuteReader();
List<T> lista = new List<T>();
if (leitor.HasRows)
{
while (leitor.Read())
{
T obj = Foo<T>();
obj.GetType().GetProperty("Id").SetValue(obj, leitor["Id"], null);
lista.Add(obj);
}
}
conn.Close();
return lista;
}
public T Foo<T>() where T : class, new()
{
return new T();
}
}
modified on Wednesday, June 8, 2011 2:11 PM
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you have to add new() in the where clause of the generic definition.
public T Foo<T>() where T : new(){
return new T();
}
Or such
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i got this msg: Error 800 'T' must be a non-abstract type with a public parameterless constructor in order to use it as parameter 'T' in the generic type or method
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I think the error message is clear about what you need to fix: pass your generic class a type that can be instantiated with new T() (i.e. a non-abstract, with a parameterless constructor).
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but the T class is a non-abstract and has no constructor parameter
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The class that you pass as the generic parameter for T must be like the 'Test' class in the example that Ennis posted below.
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public class Test {
public Test() {
}
}
public class Bar {
public static void Test<T>() where T : Test, new() {
T t = new T();
}
}
...
Bar.Test <Test>();
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Thanks a lot, it was missing "Test,"
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Hi,
I have a couple of headings that need set to bold and underlined but having trouble getting this to work in itextsharp. Writing out to a pdf. I can get the heading set to bold or i can get it underlined but not both at the same time.
Font normalBold = FontFactory.GetFont("times", 10, Font.BOLD);
Font normalBoldUnderlined = FontFactory.GetFont("times",10,Font.UNDERLINE);
I have also tried to create a paragraph but include the heading and set it to underlined but for some reason it sets the whole document underlined..
Paragraph paragraphThree = new Paragraph("Exchanger Represents:\n", normalBold);
paragraphThree.SetAlignment("Justify");
paragraphThree.IndentationLeft = 20;
paragraphThree.Font.SetStyle(iTextSharp.text.Font.UNDERLINE);
Anyone any ideas apart from drawing a line as to how to do this?
Thanks in advance
Paul
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Are those flags combinable (i.e. Font.BOLD | Font.UNDERLINE)?
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