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Thanks everyone again !
but the code that I modified is below,but still has problem:
---------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
public class MyGen
{
private const string LL = "keygen";
public virtual string getSerial(string userId, string licenseNum)
{
DateTime dDate = DateTime.Now.AddYears(3);<br />
dDate.Add(1, 3);<br />
dDate.Add(6, -1);
licenseNum = Int32.Parse(licenseNum).ToString("D3");
string verTime = "-" + dDate.ToString("yyMMdd") + "0";
string type = "YE3MP-";
string need = new StringBuilder(userId.Substring(0, 1)).Append(type).Append("300").Append(licenseNum).Append(verTime).ToString();
string dx = new StringBuilder(need).Append(LL).Append(userId).ToString();
int suf = this.decode(dx);
string code = new StringBuilder(need).Append(Convert.ToString(suf)).ToString();
return this.change(code);
}
private int decode(string s)
{
int i;
char[] ac;
int j;
int k;
i = 0;
ac = s.ToCharArray();
j = 0;
k = ac.Length;
while (j < k)
{
i = (31 * i) + ac[j];
j++;
}
return Math.Abs(i);
}
private string change(string s)
{
sbyte[] abyte0;
char[] ac;
int i;
int k;
int j;
abyte0 = s;<br />
ac = new char[s.Length];<br />
i = 0;<br />
k = s.Length;<br />
while (i < k)<br />
{<br />
j = char.ConvertToUtf32(s, i);
if ((j >= 48) && (j <= 57))
{
j = (((j - 48) + 5) % 10) + 48;
}
else if ((j >= 65) && (j <= 90))
{
j = (((j - 65) + 13) % 26) + 65;
}
else if ((j >= 97) && (j <= 122))
{
j = (((j - 97) + 13) % 26) + 97;
}
ac[i] = (char)j;
i++;
}
return Convert.ToString(ac);
}
public MyGen()
: base()
{
}
static void Main(string[] args)
{
try
{
Console.WriteLine("please input register name:");
string userId = null;
userId = System.Console.ReadLine();
MyGen MyGen = new MyGen();
string res = MyGen.getSerial(userId, "5");
Console.WriteLine("Serial:" + res);
System.Console.ReadLine();
}
catch (IOException ex)
{
}
}
}
garnett
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Remove the fourth highlighted line. However, you need to say: what do the second and third highlighted lines do?
You are also missing the new list of errors
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If I Remove the fourth highlighted line,and mark //abyte0 = s;
the problem remain
DateTime dDate = DateTime.Now.AddYears(3);
dDate.Add(1, 3);
dDate.Add(6, -1);
error show dDate.Add can't overload 2 arguments
and I think "DateTime.Now.AddYears(3)" is wrong to orginal too...
garnett
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Yes, but what would those lines do in java?
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Got it. The first line is dDate.AddYears(3);
The second line is dDate.AddDays(-1);
Do you really intend to initialise dDate to a date three years in the future? Based on your original code, you just want it to be initialised to DateTime.Now
By the way, it makes life a lot easier for other people if you use descriptive values. java.util.Calendar contained a list of constants which would have made life a lot easier
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Hi ... Thanks again !
I pass for compiler this code , but the output is wrong
when I run keygen.exe
input name : test
it show
Serial:System.Char[]
somewhere is still wrong .....
---------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
public class MyGen
{
private const string LL = "keygen";
public virtual string getSerial(string userId, string licenseNum)
{
DateTime dDate = DateTime.Now;
dDate.AddYears(3);
dDate.AddDays(-1);
//dDate.Add(1, 3);
//dDate.Add(6, -1);
licenseNum = Int32.Parse(licenseNum).ToString("D3");
string verTime = "-" + dDate.ToString("yyMMdd") + "0";
string type = "YE3MP-";
string need = new StringBuilder(userId.Substring(0, 1)).Append(type).Append("300").Append(licenseNum).Append(verTime).ToString();
string dx = new StringBuilder(need).Append(LL).Append(userId).ToString();
int suf = this.decode(dx);
string code = new StringBuilder(need).Append(Convert.ToString(suf)).ToString();
return this.change(code);
}
private int decode(string s)
{
int i;
char[] ac;
int j;
int k;
i = 0;
ac = s.ToCharArray();
j = 0;
k = ac.Length;
while (j < k)
{
i = (31 * i) + ac[j];
j++;
}
return Math.Abs(i);
}
private string change(string s)
{
//sbyte[] abyte0;
char[] ac;
int i;
int k;
int j;
//abyte0 = s;
ac = new char[s.Length];
i = 0;
k = s.Length;
while (i < k)
{
j = char.ConvertToUtf32(s, i);
if ((j >= 48) && (j <= 57))
{
j = (((j - 48) + 5) % 10) + 48;
}
else if ((j >= 65) && (j <= 90))
{
j = (((j - 65) + 13) % 26) + 65;
}
else if ((j >= 97) && (j <= 122))
{
j = (((j - 97) + 13) % 26) + 97;
}
ac[i] = (char)j;
i++;
}
return Convert.ToString(ac);
}
public MyGen() : base()
{
}
static void Main(string[] args)
{
try
{
System.Console.WriteLine("please input register name:");
string userId = null;
userId = System.Console.ReadLine();
MyGen MyGen = new MyGen();
string res = MyGen.getSerial(userId, "5");
System.Console.WriteLine("Serial:" + res);
System.Console.ReadLine();
}
catch (IOException ex)
{
}
}
}
garnett
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It's the 'Convert.ToString(ac)' line in the change() function. You need to return 'new string(ac)'
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Thanks Computafreak.....
it works
I'll test it !
garnett
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I'm trying to create a new thread which constantly draws graphics to a form.
My problem seems to be when I want to update the graphics, I call the Invalidate() method, but this causes massive flickering which I don't experience if I use a single thread and draw the graphics directly in the Form1_Paint method.
Here's my code:
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Threading;
namespace app
{
public partial class Form1 : Form
{
private System.Drawing.Bitmap myBitmap;
Thread newThread;
public Form1()
{
InitializeComponent();
newThread = new Thread(new ThreadStart(draw));
newThread.Start();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
Graphics graphicsObj = e.Graphics;
graphicsObj.DrawImage(myBitmap, 0, 0, myBitmap.Width, myBitmap.Height);
}
private void Form1_Load(object sender, EventArgs e)
{
myBitmap = new Bitmap(this.ClientRectangle.Width,
this.ClientRectangle.Height,
System.Drawing.Imaging.PixelFormat.Format24bppRgb);
}
public void draw()
{
Graphics gfx;
gfx = Graphics.FromImage(myBitmap);
Pen myPen = new Pen(System.Drawing.Color.Plum, 3);
gfxLoop:
for (int i = 1; i < 100; i++)
{
myPen.Color = Color.FromArgb(0, 0 + (i * 2), 0);
gfx.DrawEllipse(myPen, 50 + i, 50 + i, 200 - (i * 2), 200 - (i * 2));
Thread.Sleep(20);
this.Invalidate();
}
for (int j = 0; j < 100; j++)
{
myPen.Color = Color.FromArgb(200 - (j * 2), 0, 100 - j);
gfx.DrawEllipse(myPen, 150 - j, 150 - j, j * 2, j * 2);
Thread.Sleep(20);
this.Invalidate();
}
goto gfxLoop;
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
newThread.Abort();
}
}
}
Anyone got any good tips in how to overcome this flickering?
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Your Invalidate() method is causing the flicker. Draw the ellipses to a Bitmap, then at the end of each loop iteration, draw the Bitmap to gfx and Invalidate() then. This is double-buffering
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Hi,
Didn't know where to post it else, because there is no VSX Forum.
I'm stuck with this problem for quiet some time and I can't find an example how do it...
Can somebody please help?
Thanks
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Dromar wrote: Didn't know where to post it else, because there is no VSX Forum.
sure there is[^]
Yusuf
Oh didn't you notice, analogous to square roots, they recently introduced rectangular, circular, and diamond roots to determine the size of the corresponding shapes when given the area. Luc Pattyn[^]
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Hi
I have Dataset that include table Items, How can I sort this table by Code field ?
thank's in advance
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use this:
var sortedDataRowEnumerable = dataset.Tables[0].AsEnumerable().OrderBy(r => r["coltosort"]);
Or
dataset.Tables[0].DefaultView..Sort = "coltosort DESC";
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thank you very much !
and how can I run any query on this DataSet ?
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Pretty much the same way you would run any query on any DataSet.
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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It is an unorganized textfile. It is not a tab delimited file and also comma separated.I want to split this file in 7 coloumn base on the position below. Then, put the file in dataGridView. I'm absolutely need your helps. Thanx before....
Path \ Global \ Direct \ Mult \ Total \ %of \ Cum
1, 9, 4 \ 0.158 \ 0.006\ 3.487 \ 0.019\ 12.3 \ 12.3
1, 11, 4 \ blank \ 0.013 \ 3.683 \ 0.048\ 30.4 \ 42.7\
1, 11, 7, 4 \ blank \ 0.001 \ 4.826 \ 0.005 \ 3.2 \ 45.8\
1, 11, 5 \ 0.042 \ 0.002 \ 2.859 \ 0.005 \ 13.1\ 13.1\
1, 11, 4, 6 \ 0.631\ 0.002 \ 4.434 \ 0.008 \ 1.3 \ 1.3\
1, 9, 7 \ 0.574 \ 0.005 \ 3.504 \ 0.018 \ 3.2 \ 3.2\
1, 11, 7 \ blank \ 0.025 \ 3.604 \ 0.089 \ 15.5 \ 18.6\
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Double posting is very bad and has been show to damage kittens.
Me, I don't care for cats but do you?
Panic, Chaos, Destruction.
My work here is done.
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I'll prefer xml then text file...
here is easiest way
you can write or read XML through DataTable...
DataTable.WriteXml();
DataTable.ReadXml();
then set that DataTable to DataGridView through DataSource property
TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKQUFK[M`UKs*$GwU#QDXBER@CBN%
R0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia> -----------------------------------------------
128 bit encrypted signature, crack if you can
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I would create an object that contains properties for the seven fields in the string, parse the string, pass the resulting string array to the item objects constructor, and then add the item to the list. At that point, displaying it in a gridview should be a piece of cake :
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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thanks for your reply. I've tried to do that method, but i got problem in parse the string. The string has a blank space delimiters. But, when i use this code, the string can't be splitted. Thanks for your help
string line = "";
string[] fields = null;
string errorInfo = String.Empty;
this.openFileDialog1.ShowDialog();
if (!(this.openFileDialog1.FileName == null))
this.textBox3.Text = this.openFileDialog1.FileName;
string txt = this.textBox3.Text;
DataTable tbl = new DataTable("InputFile");
try
{
using (StreamReader sr = new StreamReader(txt))
{
// first line has headers
if ((line = sr.ReadLine()) != null)
{
fields = line.Split(new char[] { '\x20', '\x20' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string s in fields)
{
tbl.Columns.Add(s);
}
}
else
{
// it's empty, that's an error
throw new ApplicationException("The data provided is not in a valid format.");
}
// fill the rest of the table; positional
while ((line = sr.ReadLine()) != null)
{
DataRow row = tbl.NewRow();
fields = line.Split(new char[] { '\x20', '\x20' }, StringSplitOptions.RemoveEmptyEntries);
int i = 0;
foreach (string s in fields)
{
row[i] = s;
i++;
}
tbl.Rows.Add(row);
}
}
}
catch (Exception)
{
throw new ApplicationException("There was an error attempting to read the data. Please verify the data provided is in a valid format, is tab-delimited text, and includes only ONE header line.");
}
//return tbl;
this.dataGridView1.DataSource = tbl;
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I am assuming that the '\' are the seperators. Here is the code:
string[] values = null;
using (DataTable dt = new DataTable())
{
using (OpenFileDialog ofd1 = new OpenFileDialog())
{
DialogResult diagR = ofd1.ShowDialog();
if (diagR == DialogResult.Cancel)
return;
using (StreamReader sr = new StreamReader(ofd1.FileName))
{
sr.BaseStream.Seek(0, SeekOrigin.Begin);
bool headerLine = true ;
while (!sr.EndOfStream)
{
values = sr.ReadLine().Split(Convert.ToChar(@"\"));
if (headerLine)
{
foreach (string s in values)
{
dt.Columns.Add(s);
headerLine =false ;
}
}
else
{
DataRow dr = dt.NewRow();
for (int i = 0; i < values.Length; i++)
{
if (i > dt.Columns.Count - 1)
break;
dr[dt.Columns[i].ColumnName] = values.GetValue(i).ToString();
}
dt.Rows.Add(dr);
dt.AcceptChanges ();
}
}
}
}
}
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