StackOverflow2013

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You can query from different datasource and dump it in a single collection type and bind to combobox. Here is a sample code, you can do something similar to this using System; using System.Collections.Generic; using System.Data; using System.Drawing; using System.Windows.Forms; <pre><code>namespace WindowsFormsApplication1 { public partial class Form1 : Form { List<Item> items; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { //Let's say we are getting items from two different datasources and putting them in a same collection items = new List<Item>(); //Getting pens from dataSource1 items.Add (new Pen("Parker",Color.Blue )); items.Add(new Pen("Paper Mate", Color.Blue)); //Adding Books from dataSource2 items.Add(new Book("Programming in C", Color.Red)); items.Add(new Book("Design Patterns", Color.Red)); //Data binding comboBox1.DataSource = items; comboBox1.DisplayMember = "Name"; comboBox1.ValueMember = "Color"; this.comboBox1.DrawMode = DrawMode.OwnerDrawFixed; //Do not forget this } private void comboBox1_DrawItem(object sender, DrawItemEventArgs e) { e.DrawBackground(); int index = e.Index; Item item = comboBox1.Items[index] as Item ; if (item.Color.Equals ( Color.Red)) e.Graphics.DrawString(item.Name, this.Font , Brushes.Red, new Point(e.Bounds.X, e.Bounds.Y)); else if (item.Color.Equals ( Color.Blue)) e.Graphics.DrawString(item.Name, this.Font, Brushes.Blue, new Point(e.Bounds.X, e.Bounds.Y)); else e.Graphics.DrawString(item.Name, this.Font, Brushes.Black, new Point(e.Bounds.X, e.Bounds.Y)); } } public abstract class Item { string name; Color color; public string Name { get { return name; } set { name = value; } } public Color Color { get { return color; } set { color = value; } } } public class Book:Item { public Book(string name, Color color){ this.Name = name; this.Color = color; } } public class Pen : Item { public Pen(string name, Color color){ this.Name = name; this.Color = color; } } } </code></pre>
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1. POC# Winform; Possible? ComboBox with 2 DataSources, Diffrentiated by Colored text
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1. PTAnswer
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1. USmadan
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2. VO
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Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.