Question

So i’m not really sure why this is happening but I’m running through some DataRows where I have the control name, property, and value that I want to set. Everything works fine except when I set the TEXT property of a button. For some reason, the click event is called…

Here’s some of the code I’ve got:

string controlName, value, property; Control currentControl = null; System.Reflection.PropertyInfo propertyInfo = null;  // run through all rows in the table and set the property foreach (DataRow r in languageDataset.Tables[_parentForm.Name].Rows) {   controlName = r['ControlName'].ToString().ToUpper();   value = r['Value'].ToString();   property = r['Property'].ToString();    // check all controls on the form   foreach (Control c in formControls)   {     // only change it if its the right control     if (c.Name.ToUpper() == controlName)     {       propertyInfo = c.GetType().GetProperty(property);        if (propertyInfo != null)         propertyInfo.SetValue(c, value, null);  ******Calls Event Handler?!?!******       //        currentControl = c;       break;     }   } } 

So why in the world would it call the event handler when setting the value? Here’s what I’m setting it with that’s causing this:

<SnappletChangePassword>     <ControlName>buttonAcceptPassword</ControlName>   <Property>Text</Property>     <Value>Accept</Value> </SnappletChangePassword> 

Answer 1

I can’t reproduce this with a simple short but complete program:

using System; using System.Drawing; using System.Reflection; using System.Windows.Forms;  class Test {     static void Main()     {         Button goButton = new Button {              Text = 'Go!',             Location = new Point(5, 5)         };          Button targetButton = new Button {             Text = 'Target',             Location = new Point(5, 50)         };         goButton.Click += (sender, args) => SetProperty(targetButton, 'Text', 'Changed');         targetButton.Click += (sender, args) => MessageBox.Show('Target clicked!');          Form f = new Form { Width = 200, Height = 120,                 Controls = { goButton, targetButton }         };         Application.Run(f);     }      private static void SetProperty(object target, string propertyName, object value)     {         PropertyInfo property = target.GetType().GetProperty(propertyName);         property.SetValue(target, value, null);     } } 

Can you come up with a similarly complete program which does demonstrate it?