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    <p>Here is a complete demo sample that demostrates required behaviour.</p> <p>For the sake of ease your learning, I chose a <strong>string</strong> type parameter that you adjust to your case.</p> <p>To test it, create a new <strong>Visual Studio</strong> *<em>C#</em>* project and fill <strong>program.cs</strong> with the following code</p> <pre><code>using System; using System.Collections.Generic; using System.Linq; using System.Windows.Forms; namespace Stackoverflow { public class ClassA : Form { public ClassA() { InitializeComponent(); } public ClassA(string WindowTitleParameter) { InitializeComponent(); this.Text = WindowTitleParameter; MessageBox.Show("Hi! I am ClassB constructor and I have 1 argument. Clic OK and look at next windows title"); } private void InitializeComponent() // Usually, this method is located on ClassA.Designer.cs partial class definition { // ClassA initialization code goes here } } public class ClassB : ClassA { // The following defition will prevent ClassA's construtor with no arguments from being runned public ClassB(string WindowTitleParameter) : base(WindowTitleParameter) { InitializeComponent(); //this.Text = WindowTitleParameter; //MessageBox.Show("Hi! I am ClassB constructor and I have 1 argument. Clic OK and look at next windows title"); } private void InitializeComponent() // Usually, this method is located on ClassA.Designer.cs partial class definition { // ClassB initialization code goes here } } static class Program { /// &lt;summary&gt; /// The main entry point for the application. /// &lt;/summary&gt; [STAThread] static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); // If you debug this code using StepInto, you will notice that contructor of ClassA (argumentless) // will run prior to contructor of classB (1 argument) Application.Run(new ClassB("Look at me!")); } } } </code></pre>
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    1. POPassing parameters in the Form constructor, winforms c#
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    1. USJulio Nobre
    1. USJulio Nobre
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    1. COClass A needs to be able to accept the parameter, not class B. Don't I need to call InitializeComponent() routine in the constructor at some point?
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      1. USsarsnake
    2. COwhen I implement the constructor above, it complains that "'ClassA' does not contain a constructor that takes '0' arguments"
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    3. COHi sarname. I just done a code revision that will allow you to use the same parameter either on ClassA or ClassB. I would suggest you to use debugger's STEP-INTO feature to get a better insight on code flow. Hope it helps
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      1. USJulio Nobre
 

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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.

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