Sil3ncer7

First off I am new at c#. Second, I am working on trying to remake my VB6 application in c#, well I have the form kinda laid out and I am having trouble filling in some stuff. here is a link to the vb application Here. When you first start the program, the list box (cboCatagory) has multimedia Internet, etc... When you click say Multimedia in cboCatagory the listbox (lstApplication) display the appropriate application that fits that profile say Media Player...

My problem is:
In visual basic you put it in the "form Load", How do I display the items in cboCatagory?
I have this down, but it doesnt load when the application starts...

cboCatagory.Items.Add("");
cboCatagory.Items.Add("Multimedia");
cboCatagory.Items.Add("Word Processing");
cboCatagory.Items.Add("Internet");
cboCatagory.Items.Add("Web Design");
cboCatagory.Items.Add("Program Development");

Also say you click "Multimedia" how do you get the applications to show up in lstApplication?
I have:
if (cboCatagory = "Multimedia")
then lstApplication=("Windows Media Player");

but that doesnt seem to work... Any ideas or pointers would be greatly appreciated..

-Thanks

kruptof

funny, it works for me. Double click on the form or select the load event from the properties window to make sure you're putting the above in the correct place.

It should be:

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DaWei

Also, read the "How to Post a Question" thread and learn how to use code tags (puts the code in a box to preserve indentation). See how nice Kruptof's code looks, compared to yours? If yours actually had indentation, it would look super ugly and unreadable without the tags.

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Sil3ncer7

I tried this and it gives me a and the applications dont show up in the lstApplication box

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Slowly but surly trying to learn C#, SQL, VB.Net, and wondering if a tornado crosses the equator if it spins backwards....

Bharathi

Hi,

Your code worked for me. I have given full code for this exercise. Hope it helps.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace combotesting
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{



comboBox1.Items.Add("");
comboBox1.Items.Add("Multimedia");
comboBox1.Items.Add("Word Processing");
comboBox1.Items.Add("Internet");
comboBox1.Items.Add("Web Design");
comboBox1.Items.Add("Program Development");
}

private void button1_Click(object sender, EventArgs e)
{
if ((string)comboBox1.SelectedItem == "Multimedia")
{
MessageBox.Show("true");
}
}
}
}


Develop three-tier Database applications using C# and SQL server

Sil3ncer7

Well kinda. If you select "multimedia" from the comboBox1, a listbox (lstApplication) should display text such as this: "Windows media player, iTunes, winamp,etc"

I try this but it doesnt work:
if cboBox1.items = "multimedia"
Then
lstApplication.Items.Add("Windows Media Player");
lstApplication.Items.Add("iTunes");
lstApplication.Items.Add("Winamp");

Am I even Close???

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Slowly but surly trying to learn C#, SQL, VB.Net, and wondering if a tornado crosses the equator if it spins backwards....

Booooze

Use the combobox1.Items.Add Method to add the items to the box under the form load event. If you want the list to be shown undre a press of the button, put it under button1_Click. If you want it to display when a item is selected or changed from the list box, put it under the SelectedIndexChanged Method. You can do that by double clicking the combo box. As for the code to display the correct list:


Put that code under the corresponding event (Index Changed or button press or whatever). Hope this helps

Sil3ncer7

Ill try that and see what It'll do....

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Slowly but surly trying to learn C#, SQL, VB.Net, and wondering if a tornado crosses the equator if it spins backwards....

Sil3ncer7

I tried this in both the lstApplications root and the cboCatagory root and neither work

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Slowly but surly trying to learn C#, SQL, VB.Net, and wondering if a tornado crosses the equator if it spins backwards....