C# Discussion Boards - CodeProject

Adriaan Davel20-Mar-09 3:50

20-Mar-09 3:50

Great, thanks. Took me a while to figure out what the results were but makes sense.

Now for the next challenge: For Generics collections you can do object.GetType().GetProperties()[0].PropertyType.GetGenericArguments()[0].Name for example to find out what object is contained by the enumerable, what would the equivalent be for an array?

____________________________________________________________
Be brave little warrior, be VERY brave

Re: Property is IEnumerable

moon_stick20-Mar-09 4:13

moon_stick

20-Mar-09 4:13

If I've understood correctly, you need to look at the ElementType of the object:

<br />
int[] myarray = new int[10];<br />
Type arrayType = myarray.GetType().GetElementType();<br />

will return System.Int32

It definitely isn't definatley

Re: Property is IEnumerable

Adriaan Davel20-Mar-09 4:43

Adriaan Davel

20-Mar-09 4:43

Perfect, thanks for the help

____________________________________________________________
Be brave little warrior, be VERY brave

Adding an icon to my control library !

Mohammad Dayyan20-Mar-09 1:34

Mohammad Dayyan

20-Mar-09 1:34

Hi.

How can we add an icon to our control library ?
I mean , I want to change this icon[^]

Thank you.

Re: Adding an icon to my control library !

DaveyM6920-Mar-09 2:00

DaveyM69

20-Mar-09 2:00

You need the ToolboxBitmap attribute. A couple of issues with it that I've found.

It doesn't show at all if the control/component is in the same project.
If it's a component, it will only show the icon in the designer (not in the toolbox for either control or component) if it's in a seperate project in the same solution.
Works fine if the output dll is used as the reference!

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: Adding an icon to my control library !

Mohammad Dayyan20-Mar-09 17:39

Mohammad Dayyan

20-Mar-09 17:39

Is this it :

[System.Drawing.ToolboxBitmap(typeof(WebCamCapture), "CAMERA.ICO")] // toolbox bitmap

DaveyM69 wrote:
It doesn't show at all if the control/component is in the same project.

So how can we set an icon to it ?

Ajax autocomplete in asp.net

gopinathtamil20-Mar-09 0:56

gopinathtamil

20-Mar-09 0:56

The below code is i tryed for ajax auto complete on my site..

plz say if their is any bugs...

default2.aspx

]]>

<title>

function IAmSelected(source, eventArgs) {
alert(" Key : " + eventArgs.get_text() + " Value : " + eventArgs.get_value());
}

<asp:scriptmanager id="ScriptManager1" runat="server" xmlns:asp="#unknown">
<services>
<asp:servicereference path="~/WebService.asmx">

<asp:textbox id="TextBox1" runat="server" xmlns:asp="#unknown">
<ajaxtoolkit:autocompleteextender id="AutoCompleteExtender1" runat="server" onclientitemselected="IAmSelected" xmlns:ajaxtoolkit="#unknown">
BehaviorID="AutoCompleteEx" TargetControlID="TextBox1" ServicePath="WebService.asmx" MinimumPrefixLength="3" EnableCaching="true" ServiceMethod="GetCompletionList">

autocomplete.cs

using System;

using System.Collections.Generic;

using System.Web.Services;

using System.Data;

using System.Data.SqlClient;

using System.Web.Script.Services;

///

/// Summary description for WebService
///

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
// [System.Web.Script.Services.ScriptService]
public class WebService : System.Web.Services.WebService
{

public WebService () {

//Uncomment the following line if using designed components
//InitializeComponent();
}

[WebMethod]
public string[] GetCompletionList(string prefixText)

{

{

string sql = "select Aname From Pincode Where Aname like @prefixText";

SqlDataAdapter da = new SqlDataAdapter(sql, "Server=sql346.mysite4now.com;uid=aitts_85478;password=aitts;database=aitts_85478");

da.SelectCommand.Parameters.Add("@prefixText", SqlDbType.VarChar, 50).Value = prefixText + "%";

DataTable dt = new DataTable();

da.Fill(dt);

// List<string> items = new List<string>();

string[] items = new string[dt.Rows.Count];

int i = 0;

foreach (DataRow dr in dt.Rows)

{

items.SetValue(dr["Aname"].ToString(), i);

//items.Add(dr["Location_Name"].ToString());

i++;

}

// return items.ToArray();

return items;

}

}

}

webservice.asmx

]]>

its not working for me....

Re: Ajax autocomplete in asp.net

Michael Bookatz20-Mar-09 1:11

Michael Bookatz

20-Mar-09 1:11

First off there is an ASP.net forum that you may get more help with

Second please don't post so much code only the relevant problem areas

Third when posting code please use the code block then people can read it easier and follow the code.

and finally what error message are you getting?

Text and image on ListBox

CodingLover20-Mar-09 0:48

CodingLover

20-Mar-09 0:48

Hi all,

Can someone tell me a way to add text and an image on a ListBox. Actually I want to add an icon in between text.

I can add text there, but stuck with the image.

Thanks all.

I appreciate your help all the time...
CodingLover Smile | :)

Re: Text and image on ListBox

DaveyM6920-Mar-09 0:56

DaveyM69

20-Mar-09 0:56

You may be able to do it by setting DrawMode to one of the OwnerDraw modes and using the DrawItem event.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: Text and image on ListBox

CodingLover20-Mar-09 1:01

CodingLover

20-Mar-09 1:01

Sorry for disturbing.

Do you know any example link about that? If so please can you send it here.

I appreciate your help all the time...
CodingLover Smile | :)

Re: Text and image on ListBox

DaveyM6920-Mar-09 1:39

DaveyM69

20-Mar-09 1:39

Plenty on google[^]

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Configuration file for data inputs.

AksharRoop20-Mar-09 0:36

AksharRoop

20-Mar-09 0:36

Hi All,

I wrote an application that reads web page contents and send to specified email addresses.
I want to make this configurable; i mean a user should be able to set/change at anytime the to,from,subject etc. details.

I am new to C# but i know that app.config is one way to do this, but what i have read in forums that people generally use it only for installation configs.

Is there any other way where a user would be able to provide input in key-value format?

Thanks,
AksharRoop

Re: Configuration file for data inputs.

DaveyM6920-Mar-09 1:01

DaveyM69

20-Mar-09 1:01

Use the application settings. Project|Properties|Settings. Create any fields you need making sure the scope is User.
You can then recall these using
Properties.Settings.Default.YourSettingName
and saved using
Properties.Settings.Default.Save();

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Re: Configuration file for data inputs.

Simon P Stevens20-Mar-09 1:01

Simon P Stevens

20-Mar-09 1:01

Add a "Settings" file (using the VS add new item option), name it something like "MySettings"

Open it up and add your various different settings, set a type for them, and provide default values. (Make sure they are set to "application" scope not "user".

In you program you can read the values by doing MySettings.Default.MySettingValue.

When you compile your app you'll find the defaults are added to the app.config file.

in the bin\debug\ directory you can edit the exename.config file and make changes. when you run it, it will use the value from the .config file.

(The default values are actually also compiled into the assembly, so if you delete the exename.config file, or remove any values it will still revert to the default ones that are compiled into the assembly.)

Alternatively, if you set the settings to "user" mode, you will be able to write changes to them in code, and call MySettings.Default.Save() to save the changes to a user.config file that is stored in "c:\documents and settings\username\localsettings\application data\appname\appversion\user.config". If you did this you would also need to provide a configuration form for the user to enter their values and hit save.

Simon

How to handle Idle loop processing for windows CE application

saksp20-Mar-09 0:00

saksp

20-Mar-09 0:00

I want to write application which will run on Windows CE
& I want to use Idle processing but I am not able to handle Idle
processing for windows CE application
i.e I can not handle Application.Idle event.
How to do that.

thanks

Re: How to handle Idle loop processing for windows CE application

Eddy Vluggen20-Mar-09 2:41

Eddy Vluggen

20-Mar-09 2:41

saksp wrote:
i.e I can not handle Application.Idle event.

Why not? According to the documentation[^] it's available on CE.

I are troll Smile | :)

Re: How to handle Idle loop processing for windows CE application

Alan N20-Mar-09 3:34

Alan N

20-Mar-09 3:34

saksp wrote:
I can not handle Application.Idle event.

Why not? You have posted this question before and if you do not give any more information, most usefully the section of your code which fails to do what you think it should, then it is unlikely that anyone will be able to help you.

Alan.

WinForms DataGridView Alternative

MatthysDT19-Mar-09 23:27

MatthysDT

19-Mar-09 23:27

Could anyone here please recommend a nice 3rd party control to replace the DataGridView in .Net (winforms).
It needn't be free.

Thanks!

Doggy treat[^]

Re: WinForms DataGridView Alternative

Michael Bookatz20-Mar-09 1:15

Michael Bookatz

20-Mar-09 1:15

Have you looked in the catalog?

Re: WinForms DataGridView Alternative

MatthysDT20-Mar-09 3:44

MatthysDT

20-Mar-09 3:44

Yes, nothing

Doggy treat[^]

Hooking MessageBox YES/NO button Text

lalmama19-Mar-09 23:19

lalmama

19-Mar-09 23:19

I have developed a c# speech app using sapi 5.1..I use cfg..In my code I have a line where A messagebox is displayed..When this msgbox is displayed, the speech does not get accepted..it seems I have to hook the messagebox text to the grammar..I don't know how?? Anyone willing to help???

Re: Hooking MessageBox YES/NO button Text

Eddy Vluggen20-Mar-09 2:14

Eddy Vluggen

20-Mar-09 2:14

The MessageBox.Show is blocking, meaning that it will wait with execution until the user closes this messagebox. My guess would be that the agent only listens when the application can proces the information.

I are troll Smile | :)

Read 2D || QR Barcode from Compact Framework

Tyler4519-Mar-09 22:43

Tyler45

19-Mar-09 22:43

Hello Frieds;
I want to read qr barcode from my windows mobile phone using its camera. How can i handle this using without external program.
Thanks in Advance
Best Regards

Re: Read 2D || QR Barcode from Compact Framework

musefan19-Mar-09 22:49

musefan

19-Mar-09 22:49

Well my first suggestion would be to try and get the contrast stable. Then attempt to convert to a binary image (i.e only either black or white pixels)

then you will need to produce some sort of scanning algorithm to detect black data and white space. then you need to research the formats of 2D barcode formats so you can make sense out of your data results.

Basically, its not an easy task so good luck!

Life goes very fast. Tomorrow, today is already yesterday.

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