|
Richard's right. Add a breakpoint on the if statement. To do this, you can click on the line and press F9 (this is the shortcut to toggle the breakpoint on and off). You should see a red dot appear in the gutter in Visual Studio. Press F5 to run your application. When you hit the if statement, press F10 to step over the code. If you do this you will find out if this value is null or not.
Now, one thing I would do is wrap the MemoryStream in a using statement. A MemoryStream is a disposable object, so you should always dispose of it. This would give you:
using (MemoryStream ms = new MemoryStream(photo_array))
{
picBox1.Image = Image.FromStream(ms);
}Your code will now dispose of the stream.
|
|
|
|
|
Hi
I want to load a bitmap do some changes on the pixels and save it as new bitmap with a new name.
Will it work if I'll use the save method of the bitmap class (I'll give it as a parameter the path with the name "C:\\NewBitmap.bmp" for example, or is there another method for doing it?
thanks.
|
|
|
|
|
gibsray wrote: Will it work if I'll use the save method of the bitmap class
I can't see why not.
|
|
|
|
|
Yes - the Save method is the one to use.
Two things to note though:
1) Don't try to save it to the root directory - Vista and above won't let you write to the root of the boot drive to help prevent virus and trojan attacks - use a different directory unless you app has admin privileges.
2) Be careful what format you save the image in: many types including JPG are lossy compression, so each time you save and open it you will get a fuzzier, less detailed image. Use BMP or similar for working images, and JPG for final presentation only.
If you get an email telling you that you can catch Swine Flu from tinned pork then just delete it. It's Spam.
|
|
|
|
|
I can not icon & background in form design ....
Half Blood
|
|
|
|
|
Fascinating. Thanks for sharing.
|
|
|
|
|
That's bad news.
Perhaps if you shared what you've done, with relevant source code on, say, a site targeted at c# developers, they'd be able to help you 
|
|
|
|
|
The quality of the question you ask directly dictates the quality of the answer you get.
Your question was so bad that the only possible answers were sarcasm. in other words, your question was nothing but a jumble of random words.
|
|
|
|
|
|
can i get coding for "segmenting overlapped and touching chromosomes" using hierarchical distributed genetic algorithm for image segmentation?????
|
|
|
|
|
|
Are you and the guy below a) The same person or b) in the same class?
|
|
|
|
|
might be in the same batch doing the final sem project  looks like they have communication problem that needs to be resolved first before they find answers for the other problems 
Jibesh.V.P
India
|
|
|
|
|
Yes, all you need do is hire someone to write it for you.
|
|
|
|
|
Open your question and have a look at it.
Here's what I, the idiot on the other side of planet, see when I read this question.
- descriptive subject of the topic "hi". Yup, this tells me EXACTLY what I need to know about your question. (figuratively it actually does)
- C# contents of the question considering we're in the C# forum. None.
- Actual coding question. "can i get coding". Answer: Somehow you probably can, the sky is the limit.
- "segmenting overlapped and touching chromosomes" reads as "dkjsgfgf dkjsghfdaskjgfaskdsvf dhgfwkevfwvfkev ewkrhvewk" to me or it could be Klingon, or Ferengi or something else. How should anyone with a normal background in IT know what this is about? it is not unuseful, but it doesn't help in this case, add more context.
- "using hierarchical distributed genetic algorithm for image segmentation" what is this? Can YOU answer this question? My first thought, if I would need this, is to google it and see if I can get some more information. Then I would be able to clarify this to the people I'm asking questions to.
Your question seems to state you want a complete answer and solution to the problem. Wrong forum. Here we try to help people who get stuck with a specific problem they encountered and researched and tried to resolve themselves.
Do some research, get started and come back if you have more information.
|
|
|
|
|
Too bad we can't 5 this! Have a virtual 5.
|
|
|
|
|
|
can i get matlab coding for segmenting overlapped and touching chromosomes using hierarchical distributed genetic algorithm for image segmentation?????
thank u
|
|
|
|
|
|
There is a group of replies to a similar problem here[^]
|
|
|
|
|
Hi all,
I'm new and making a login and register page
The register page form here is-
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="register.aspx.cs" Inherits="register" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<style type="text/css">
.style1
{
width: 100%;
}
</style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<table class="style1">
<tr>
<td>
</td>
<td>
</td>
<td>
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td>
First
Name</td>
<td>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td>
Last name</td>
<td>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td>
E-Mail</td>
<td>
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td>
Password</td>
<td>
<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td>
</td>
<td>
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td>
</td>
<td>
<asp:Button ID="Button1" runat="server" Text="Login" onclick="Button1_Click" />
<asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text="Clear" />
</td>
<td>
</td>
</tr>
</table>
</asp:Content>
and register page logic code is----
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data.SqlClient;
public partial class register : System.Web.UI.Page
{
string conn = ConfigurationManager.ConnectionStrings["cnn"].ConnectionString;
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
/* string query1 = "select * from tbl_Students";
SqlConnection con = new SqlConnection(conn);
con.Open();
SqlCommand cmd = new SqlCommand(query1,con);
string temp = cmd.ExecuteScalar().ToString();
System.Console.WriteLine("result is:",temp);
//Label1.Text = true;
*/
string query = "Insert into tbl_Students values('" + TextBox1.Text + "','" + TextBox2.Text + "','" + TextBox3.Text + "','" + TextBox4.Text + "')";
SqlConnection con = new SqlConnection(conn);
con.Open();
SqlCommand cmd = new SqlCommand(query, con);
cmd.ExecuteNonQuery();
con.Close();
}
protected void Button2_Click(object sender, EventArgs e)
{
TextBox1.Text = "";
TextBox2.Text = "";
TextBox3.Text = "";
TextBox4.Text = "";
}
}
and login page form is---
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="login.aspx.cs" Inherits="login" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<p>
user name :<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</p>
<p>
password :<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
</p>
<p>
<asp:Button ID="Button1" runat="server" Text="Login" />
</p>
</asp:Content>
the register page data is inserted properly but i want proper validation with e-mail id must be unique for validation ...........
please help me ............Thanks a lot ..............
|
|
|
|
|
Use The Login Controls From ToolBox To Have Validation On Your Form To Validate Login Process
VJ
|
|
|
|
|
i got few line of code where configure method is calling and passing just the string value but ConfigureWith function expect delegate. can anyone help me to understand how ConfigureWith() method will work. thanks
MailTemplate
.ConfigureWith(mt => mt.MailBody = "hello world")
.ConfigureWith(mt => mt.MailFrom = "rdingwall@gmail.com")
.DoSomeOtherStuff()
.Build();
The implementation for this would be:
public class MailTemplate
{
// regular auto properties
public string MailFrom { get; set; }
public string MailBody { get; set; }
public MailTemplate ConfigureWith(Action<mailtemplate> func)
{
func(this);
return this;
}
}
tbhattacharjee
|
|
|
|
|
MailTemplate
.ConfigureWith(mt => mt.MailBody = "hello world")
.ConfigureWith(mt => mt.MailFrom = "rdingwall@gmail.com")
.DoSomeOtherStuff()
.Build();
How did you "dream up" this code? Where is the MailTemplate class instantiated? Is "MailTemplate" a static method that returns one of those classes?
You're complicating things a bit. What are you trying to achieve? Wouldn't below suffice and be a bit more readable?
public class MailTemplate
{
public string MailFrom { get; set; }
public string MailBody { get; set; }
}
class Program
{
static void Main()
{
var x = new MailTemplate()
{
MailBody = "hello world",
MailFrom = "rdingwall@gmail.com"
};
x.DoSomethingElse();
x.Build;
Console.ReadLine();
}
}
|
|
|
|
|
The caller is not passing just the string value. He/she is calling the property setter with a string value. In the call func(this) the this pointer takes the place of the mt in the Lambda Expression.
Personally, I wouldn't do it that way. The properties are public, so they can just as well be assigned directly. And if something goes wrong, you have at least a chance to debug the intermediate states when you use seperate statements instead of putting all into one.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
