How to write properties in design time
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Hi all I have an inherited control from standard textbox control. In this textbox control i set some default property value to new one.
//Suppose i want what derived control has by default BackColor = Red; this.BackColor = System.Drawing.Color.Red;In this case when user place my derived control to a form designer generate in InitializeComponent() this rows((System.ComponentModel.ISupportInitialize)(this.derivedTextBox)).BeginInit(); .... this.derivedTextBox.BackColor = System.Drawing.Color.Red;As a result when form are created DerivedTextBox.BackColor property invoked 2 times. First - when control created and Second - in the InitializeComponent() method of form where placed. I know that in this example it dosn't matter but actually i have other base control (not text box), what can add to oneself buttons [for examp: this.Buttons.Add("MyNewButton") - base control by default not have this button, but in derived it shoul be], and since what every time when i want to add button to this control one add two times) And now i have question, is exists an event what invoked only when control added to a form??? Or where in code i should write initialization control code so as this code will only generated in InitializeComponent() method of form and not to bee invoked when control are created???? THANK. -
Hi all I have an inherited control from standard textbox control. In this textbox control i set some default property value to new one.
//Suppose i want what derived control has by default BackColor = Red; this.BackColor = System.Drawing.Color.Red;In this case when user place my derived control to a form designer generate in InitializeComponent() this rows((System.ComponentModel.ISupportInitialize)(this.derivedTextBox)).BeginInit(); .... this.derivedTextBox.BackColor = System.Drawing.Color.Red;As a result when form are created DerivedTextBox.BackColor property invoked 2 times. First - when control created and Second - in the InitializeComponent() method of form where placed. I know that in this example it dosn't matter but actually i have other base control (not text box), what can add to oneself buttons [for examp: this.Buttons.Add("MyNewButton") - base control by default not have this button, but in derived it shoul be], and since what every time when i want to add button to this control one add two times) And now i have question, is exists an event what invoked only when control added to a form??? Or where in code i should write initialization control code so as this code will only generated in InitializeComponent() method of form and not to bee invoked when control are created???? THANK.if you have a constructor in your derived class then inherit the base class constructor, like:
MyTextBox(): base()
{}i think you should use ControlAdded Event
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