Method GetHashCode ....some question. - C# Discussion Boards

border style of axwebbrowser

3-Jul-06 21:09

Create a new class with 2 properties (Text and DataValue).

class MyItem
{
	public string Text = string.Empty;
	public object DataValue = null;

	public override string ToString()
	{
		return Text;
	}
}

Then use this class for adding items to listbox, for example:

for(int i = 0; i < 10; i++)
{
	MyItem myItem = new MyItem();
	myItem.Text = i.ToString();
	myItem.DataValue = DateTime.Now; // add something else here
	this.listBox1.Items.Add(myItem);
}

If you select item, than you can get each object using:

MyItem myItem = this.listBox1.SelectedItem as MyItem;

Nafiseh Salmani3-Jul-06 20:11

Nafiseh Salmani

3-Jul-06 20:11

How can i change border style of axwebbrowser? by default it shows 3D . i want to change it.

thanks

Setting Row Height in Derived DataGrids

Kais4U3-Jul-06 19:52

Method GetHashCode ....some question.

3-Jul-06 19:52

Hi
I have a class that inherits from DataGrid. I can set the rowheights in a
DataGrid by tappig into the "get_Datagridrows" method. However, this does
not work for classes that inherit from DataGrid. Anyone know how to do this
on derived classes? I find it apalling that Microsoft provided a DataGrid
that is so inflexible!

Regards
Kais

CORBA and C#

Manickam3-Jul-06 19:33

Manickam

3-Jul-06 19:33

How to convert IDL file to C#, is there any compiler supporting this language?

With regards,
Manickam.AT
(patkatm@yahoo.com)

Re: CORBA and C#

Vasudevan Deepak Kumar3-Jul-06 19:39

Vasudevan Deepak Kumar

3-Jul-06 19:39

Borland seems to have a tool. Check this out:
http://bdn1.borland.com/article/0,1410,32074,00.html[^]

Vasudevan Deepak Kumar
Personal Homepage
namespace LavanyaDeepak
Personal Weblog
The World of Deepak and Lavanya
Views and Reviews

Yanshof3-Jul-06 19:13

Yanshof

3-Jul-06 19:13

Hello,

I need some help to understand something,
I writing some program that need to add some object by using hash Table.
I have already the object but this object don't have some var that will define hash code [ beside the method GetHashCode of object ].
I want to use the method GetHashCode but before using this method - i need to set the hashCode to be some value that i need.

How i set this value ?
How do i using the exist hash Code and the method GetHashCode ?

Thanks for any help.

stancrm3-Jul-06 20:05

3-Jul-06 20:05

You must derive Hashtable class, and write your own GetHashCode() function.

Yanshof3-Jul-06 20:27

Yanshof

3-Jul-06 20:27

I dont understand - do you have some example ?

I realy need help....

stancrm3-Jul-06 20:55

3-Jul-06 20:55

If you are using Hashtable.GetHashCode() then you can only get some number like 1,2,3...
That number is internally managed from class Hashtable. You cannot set the number.
If you want to set the Hashcode in class Hashtable, then you must derive class Hashtable and
use override GetHashCode().
Hashtable is a table for some pair for key-value. If you want to add some hashcode in each
of key-value pair, then you must add property "Hashcode" to your object.

Invoke Private method of inherited class

mav.northwind4-Jul-06 0:17

mav.northwind

4-Jul-06 0:17

Hello!
The result of GetHashCode() is used by Hashtable to put your data into the appropriate buckets.
MSDN has some extensive documentation on overriding GetHashCode(), so I think the best way would be to start reading there.

Regards,
mav

--
Black holes are the places where god divided by 0...

Tab Control

satsumatable3-Jul-06 19:01

satsumatable

3-Jul-06 19:01

Hi,

I have a Tab control which has 4 different tabs say Tab0,Tab1,Tab2,Tab3, i want to focus/show the Tab3 from Tab0 when cliking any buttons or after some code.

I have used the following code

tab3.show();

But it didnt work out what should i do?....

Re: Tab Control

Shajeel3-Jul-06 19:15

Shajeel

3-Jul-06 19:15

use
tabcontrol1.SelectedIndex = 3;
where tabcontrol is the initial control on which tabs are created.

Regards
Shajeel

Re: Tab Control

satsumatable3-Jul-06 19:17

satsumatable

3-Jul-06 19:17

Thanks!!!

Kais4U3-Jul-06 18:56

3-Jul-06 18:56

Hi,

I have created a custom grid class which inherits from the DataGrid class.
Using reflection i want to invoke on of the private method of the base class. Am able to list all the public method, but not able to get the refernce to the private methods. Attached is the class am using.

<br />
	public class CustomDataGridTest : DataGrid <br />
	{<br />
		<br />
	<br />
		private DataTable PopulateTable()<br />
		{<br />
			DataTable dt = new DataTable();<br />
			dt.Columns.Add("Name");<br />
			dt.Rows.Add(new object[] {"John"});<br />
			dt.Rows.Add(new object[] {"Miller"});<br />
			dt.Rows.Add(new object[] {"Lara"});<br />
			dt.Rows.Add(new object[] {"Tommy"});<br />
			dt.Rows.Add(new object[] {"Robin"});<br />
			return dt;<br />
		}<br />
<br />
		public MethodInfo GetMethodInfo()<br />
		{<br />
			this.DataSource = PopulateTable();<br />
<br />
			MethodInfo mi = base.GetType().GetMethod("get_DataGridRows",  <br />
				BindingFlags.FlattenHierarchy | BindingFlags.IgnoreCase | BindingFlags.Instance  <br />
				| BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static); <br />
			return mi;<br />
		}<br />
	}<br />

Can anyone tell me as why the GetType().GetMethod() not returning the methodinfo object. It always return null.

Thanks in advance for any kind of help

Regards,
Kais

Igor Sukhov3-Jul-06 19:50

Igor Sukhov

3-Jul-06 19:50

Because you have to use GetProperty() method to retrieve a property.

Best regards,

-----------
Igor Sukhovhttp://sukhov.net

Kais4U3-Jul-06 20:41

3-Jul-06 20:41

Igor,

I dont see any such property to reterive the get datagrid rows collection.
Is there any alternate way to reterive that.

Regards,
Kais

Igor Sukhov4-Jul-06 2:36

Igor Sukhov

4-Jul-06 2:36

First, what is the type of your datagrid ? Are you absolutely sure that this particular datagrid class have a method with the "get_DataGridRows" name ?

Best regards,

-----------
Igor Sukhovhttp://sukhov.net

Kais4U4-Jul-06 18:27

4-Jul-06 18:27

Hi ,

Am using windows form datagrid. The datagrid class has a private method named get_DataGridRows. This method will hold the DataRow collection of the datagrid. Since am inheriting the Datagrid class am not able to access this method. If i use it directly am able to access it.

Regards,
Kais

Window Handles outside application

Igor Sukhov5-Jul-06 6:48

Igor Sukhov

5-Jul-06 6:48

Windows Forms datagrid do have internal DataGridRows property and get_DataGridRows method is the get accessor for this property.

It's recomended to retrieve property value by obtaining a PropertyInfo object first and calling GetValue method on that object.

Best regards,

-----------
Igor Sukhovhttp://sukhov.net

Sunitha19833-Jul-06 17:40

Sunitha1983

3-Jul-06 17:40

Hi......
Can anyone please tell me how to get a handle to a window outside the C# running application? if i drag and drop an icon on a window outside an application, how do i get its handle? anyone..please help me. i'm in a fix...
Thank You...

SB

Re: Window Handles outside application

stancrm3-Jul-06 20:12