C# Discussion Boards - CodeProject

Luis Alonso Ramos12-Mar-06 18:12

12-Mar-06 18:12

It's called a property grid. I don't know if it's in the Toolbox by default, but you create objectos of type PropertyGrid. However, it is not as straightforward to use. Look around this site and you'll find great articles on how to use it:

This article, for one, might be of your liking:

Bending the .NET PropertyGrid to your will[^]

I hope this helps!

-- LuisR

Luis Alonso Ramos
Intelectix - Chihuahua, Mexico

Not much here: My CP Blog!

The amount of sleep the average person needs is five more minutes. -- Vikram A Punathambekar, Aug. 11, 2005

Huge problem with C# Web Application Project Setup!!!

Jessie Blue9-Mar-06 11:57

Jessie Blue

9-Mar-06 11:57

Hello everybody!!!

I have VS2005 installed and I am now trying to install Web Application Project Template for C#. I downloaded WebApplicationProjectSetup.exe from http://msdn.microsoft.com/asp.net/reference/infrastructure/wap/default.aspx but whenever I start the installation (at the very end of the process) I get this error message:

InstallUtilLib.dll:ClrCreateManagedInstance (hr=0x80004005); Unspecified error.

PLEEEEASE HELP me with this one because I'm stuck with it for quite a while now....

THANKS!

How to make cursor jump to the next text field

ahchoo9-Mar-06 11:00

ahchoo

9-Mar-06 11:00

Hi,

I'd like to make a cursor jump to the next text field when a user reach to the max length of the other in C# .Net.
Ex: when you enter the key code for software installation, the cursor keeps go to the next text field without using the tab button.

I'm a beginner for VS. Please help thanks.

Kyah D'Oh! | :doh:

Re: How to make cursor jump to the next text field

Roy Heil9-Mar-06 15:41

Roy Heil

9-Mar-06 15:41

Step 1. On the form, set the KeyPreview property to true.
Step 2. Make sure that the TabIndex is correct for each TextBox that will have this feature.
Step 3. Add a KeyUp event for each of the TextBox controls. You can make one function, and assign the same function to each of the TextBox controls. Note that in my example, I have have named my function SSNTextBox_KeyUp. In my program, I have three Textbox controls, used for entering a Social Security number.
Step 4. Write the KeyUp event function as follows:

private void SSNTextBox_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)<br />
		{<br />
			if (((TextBox)sender).Text.Length == ((TextBox)sender).MaxLength) <br />
			{<br />
				SendKeys.Send("{TAB}");<br />
			}<br />
		}

I hope this helps.

Roy.

-- modified at 21:42 Thursday 9th March, 2006

Re: How to make cursor jump to the next text field

Stefan Troschuetz9-Mar-06 21:14

Stefan Troschuetz

9-Mar-06 21:14

Instead of using the SendKeys.Send method as suggested by Roy you can and in my opinion should use the Control.SelectNextControl method[^].

www.troschuetz.de

Re: How to make cursor jump to the next text field

ahchoo10-Mar-06 5:39

ahchoo

10-Mar-06 5:39

Thanks Roy and Stefan for your help.

Kyah Big Grin | :-D

GotFocus of Disabled List View .NET

Lav Pathak9-Mar-06 10:08

Lav Pathak

9-Mar-06 10:08

Hey,
I was wondering if this is a bug or it is supposed to work this way.
Yesterday i was playing with some controls on my windows .NET application.
On one form I have List view Control, but it is disabled. Now eventhough it is disabled it is firig its GetFocus event. I did not understand it. It wasnt firing Click event but just GetFocus and LostFocus. Other controls like textboxes or labels do not fire any events if they are disabled.

It puzzled me... Confused | :confused:

Thanks

Lav Pathak
Application Developer
Auxiliary Enterprises
Kalamazoo, MI

-- modified at 11:14 Wednesday 5th April, 2006

k-means clustering algorithms

saimee9-Mar-06 7:14

saimee

9-Mar-06 7:14

hi all,

I m working on a Data minning project using SQL Server and C#. and need code of k-means clustering algorithm implemented in c
#.

regards

Re: k-means clustering algorithms

Roy Heil9-Mar-06 9:24

Roy Heil

9-Mar-06 9:24

Try this site:

http://www.kdkeys.net/forums/thread/3538.aspx[^]

Roy.

user control

ap_sa9-Mar-06 7:07

ap_sa

9-Mar-06 7:07

i have my user control in namespace called Test1 my user control name is class Header. and i am trying to call that user control in my project number two which is called Test2. i have add reference in my Test2 and

using Test1;

namespace Test2
{

public class default : System.Web.UI.Page
{

private void Page_Load(object sender, System.EventArgs e)
{
Header proBarStatusUC = (Header) Page.FindControl("Header");

proBarStatusUC.Function1();
proBarStatusUC.Function2();
}//load
}//class
}//namespace

This work no problem, but when i try to LoadControl i get error 'file not found Header.ascx'.

using Test1;

namespace Test2
{
public class default : System.Web.UI.Page
{
private void Page_Load(object sender, System.EventArgs e)
{
Header proBarStatusUC = (Header) Page.FindControl("Header");

proBarStatusUC.Function1();
proBarStatusUC.Function2();

Header proBarStatusUC2 = (Header) Page.LoadControl("Header.ascx");

phPlaceHolder.Controls.Add(proBarStatusUC2);
}//load
}//class
}//namespace

if i have my user control in same namespace it worked, that not what i want. i what to call my user control in different project becuase my header will look same for the project and i don't want to create user control for every project. can someone please help me... Thank you,

C# and XML

hung_ngole9-Mar-06 5:32

hung_ngole

9-Mar-06 5:32

I don't understand the <i>value and innertext </i> property of a XMLNode used in .NET.
Ex:
<xml>
<element>ABC</element>
<element>ABC</element>
</xml>

code:
XmlElement root = doc.DocumentElement;
XmlNodeList nodeList = root.ChildNodes;
Console.Write(nodeList[0].InnerText);
for (int i = 1; i < nodeList.Count; i++)
{
Console.Write(","+nodeList[i].InnerText);
}

nodelist[0].Value = "" => what is nodelist[0].value??
Please explain for me!!!

Hung

Re: C# and XML

spin vector9-Mar-06 6:41

spin vector

9-Mar-06 6:41

I'm sure not the expert, but what I found is that ABC is a child of the element node. To retrieve the value I use
val = node.FirstChild.Value;

try that.

Re: C# and XML

eggie59-Mar-06 17:59

eggie5

9-Mar-06 17:59

Your program works when i run it...

using System;
using System.IO;
using System.Xml;

public class Sample {

  public static void Main() {

    XmlDocument doc = new XmlDocument();
    doc.LoadXml(@"<xml>
  <element>ABC</element>
  <element>ABC</element>
</xml>");


XmlElement root = doc.DocumentElement;            
            XmlNodeList nodeList = root.ChildNodes;
            Console.Write(nodeList[0].InnerText);
            for (int i = 1; i < nodeList.Count; i++)
            {
                Console.Write(","+nodeList[i].InnerText);
            }

    
		Console.ReadLine();
  }
}

/\ |_ E X E GG

Re: C# and XML

Andreas X9-Mar-06 20:15

Andreas X

9-Mar-06 20:15

Hello.
I might be wrong, but InnerText will take all the text inside a node.

for examlple
<xml>
<element1>
<element2>ABC</element2>
</element1>
</xml>

the InnerText of element1 will be "<element2>ABC</element2>"
while value will only fork for childnodes

could this be right ?

-- modified at 2:16 Friday 10th March, 2006

Re: C# and XML

Guffa9-Mar-06 20:38

Guffa

9-Mar-06 20:38

That is what InnerXml does. InnerText get the values of the node and all child nodes.

I'm not sure if it ignores white space if the node only contains white space and children. The InnerText of element1 will either be "ABC" or "\r\n ABC\r\n".

---
b { font-weight: normal; }

C# connection to Analysis services

swap209-Mar-06 5:17

swap20

9-Mar-06 5:17

I want to connect C# with analysis services of MS SQL server 2000. I have a code and it is giving me the error:
Database <db-name> does not exists.
I want to access OLAP cube data from that database and retrieve the data from it to web.
I m using Windows XP SP2 and IIS server.
Please ans my question as fast as possible...
It's very urgent.
Waiting for reply......
Thanks in advance.
SWAROOP

How to display smiley?

Codecrammer9-Mar-06 4:41

Codecrammer

9-Mar-06 4:41

hey guys dumb doubt.. i have developed a messenger on C# .. but Iam not able to create a form component in C# (am using .Net Framework 2.0)which can display my smileys.. can some one suggest a solution or provide me with the url for the code please.!! I want to know how to display smileys along with my text coz right now it just displays text and no pictures for smiley.. please help..

codecrammer - CRAM LORD!!

Re: How to display smiley?

mav.northwind9-Mar-06 4:56

mav.northwind

9-Mar-06 4:56

textBox1.Text += ":-)";

scnr

Regards,
mav

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

Re: How to display smiley?

Judah Gabriel Himango9-Mar-06 5:10

Judah Gabriel Himango

9-Mar-06 5:10

Re: How to display smiley?

Judah Gabriel Himango9-Mar-06 5:11

Judah Gabriel Himango

9-Mar-06 5:11

You can probably use the RichTextBox. See this CP article on inserting images and text into the RTB[^] for more information.

Stupid question for web

papa19809-Mar-06 4:32

papa1980

9-Mar-06 4:32

Hello every body i am sorry for this question but i am beginer in web developing and i don't get it how to edit dada in gridview in net 2.0
please if some body can help me.
good bye
best regars
down i apply the text
DataSet ds = new DataSet();
ds = SqlFunction.EditBook();
if (ds != null)
{
//
DataView dv = new DataView();
dv.Table = ds.Tables["Table"];
// string str = ds.Tables[0].TableName.ToString();
// HttpContext.Current.Trace.Write("Table name=",str);
/* DataGrid datagrid1 = new DataGrid();
datagrid1.DataSource = dv;
datagrid1.DataBind(); */

GridView1.DataSource = dv;

GridView1.DataBind();

}
else
{
HttpContext.Current.Trace.Write("Error in EditBook");
}

Re: Stupid question for web

Ankit Aneja9-Mar-06 19:33

Ankit Aneja

9-Mar-06 19:33

<%@ Import Namespace="System.Data" %>

DataView CartView;
Double runningTotal = 0;

//Cart is a property on the Page
DataTable Cart {
get {
if (Session["DGC_ShoppingCart"] == null) {
DataTable tmpCart = new DataTable();
tmpCart.Columns.Add(new DataColumn("Qty", typeof(string)));
tmpCart.Columns.Add(new DataColumn("Product", typeof(string)));
tmpCart.Columns.Add(new DataColumn("Price", typeof(Double)));
tmpCart.Columns.Add(new DataColumn("GiftWrap", typeof(bool)));
Session["DGC_ShoppingCart"] = tmpCart;

// first load -- prepopulate with some data
for (int i=1; i<=6; i++) {
DataRow dr = tmpCart.NewRow();
dr[0] = "1";
dr[1] = "Product " + i.ToString();
dr[2] = 1.23 * (i+1);
dr[3] = false;
tmpCart.Rows.Add(dr);
}
return tmpCart;
}
else
return (DataTable)Session["DGC_ShoppingCart"];
}
}

void Page_Init(Object sender, EventArgs e) {
MyDataGrid.EnableViewState=true;
}

void Page_Load(Object sender, EventArgs e) {
CartView = Cart.DefaultView;
if (!IsPostBack)
BindGrid();
}

void BindGrid() {
MyDataGrid.DataSource = CartView;
MyDataGrid.DataBind();
}

void btnUpdate_click(Object sender, EventArgs e) {

for (int i=0; i<MyDataGrid.Items.Count; i++) {

DataGridItem _item = MyDataGrid.Items[i];
TextBox qtyTextBox = (TextBox)_item.FindControl("txtQty");
CheckBox giftCheckBox = (CheckBox)_item.FindControl("chkGift");

// with a database, we'd use an update command.
// since this is an in-memory datatable, we'll just change the in-memory row.
DataRow dr = Cart.Rows[i];
dr[0] = qtyTextBox.Text;
dr[3] = giftCheckBox.Checked;
}
BindGrid();
}

Double CalcTotal (int count, Double price) {
Double total = count * price;
runningTotal += total;

return(total);
}

Custom Editing with DataGrid

<asp:datagrid id="MyDataGrid" runat="server"
="" bordercolor="black" borderwidth="1" gridlines="none" cellpadding="4" font-name="Verdana" font-size="8pt" headerstyle-backcolor="#aaaadd" autogeneratecolumns="false">
<columns>
<asp:templatecolumn headertext="Quantity">
<itemtemplate>
<asp:textbox id="txtQty" runat="server"
="" text="<%# DataBinder.Eval(Container, "DataItem.Qty") %>" width="40px">

<asp:boundcolumn headertext="Product" datafield="Product">
<asp:boundcolumn headertext="Price" datafield="Price" dataformatstring="{0:c}">
<asp:templatecolumn headertext="Gift Wrap?">
<itemtemplate>

<asp:checkbox id="chkGift" runat="server"
="" checked="<%# (bool)(((DataRowView)Container.DataItem)["GiftWrap"]) %>">

<asp:templatecolumn headertext="SubTotal">
<itemtemplate>

<asp:label runat="server"
="" text="<%# String.Format("{0:c}",CalcTotal((Int32.Parse((string)(((DataRowView)Container.DataItem)["Qty"]))),((Double)(((DataRowView)Container.DataItem)["Price"])))) %>">

<asp:label runat="server"
="" text="<%# String.Format("{0:c}", runningTotal) %></b>">

<asp:linkbutton id="btnUpdate" runat="server"
="" text="Update Totals" font-name="Verdana" font-size="8pt" onclick="btnUpdate_click">

Ankit Aneja
"Nothing is impossible. The word itself says - I M possible"

Clear buffer

hung_ngole9-Mar-06 4:32

hung_ngole

9-Mar-06 4:32

Console.Write(".............");
x = Console.Read();
Console.Write(".............");
y = Console.Read();

When using above code, the second Console.Read() has been done automatically caused by the "Enter key" of the first one.

How can I solve this problem? How can I clear buffer of keyboard??

Hung

Re: Clear buffer

leppie9-Mar-06 4:34

leppie

9-Mar-06 4:34

Use Console.ReadLine()

xacc.ide-0.1.3 Milestone release
Includes full source!

Re: Clear buffer

hung_ngole9-Mar-06 4:52

hung_ngole

9-Mar-06 4:52

I appreciate your solution, but I want to use the Console.Read() for some purposes.
Do you have others solution???????

Hung

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.