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c#buttontextcontrolsdefault
timothy
timothy

Reputation: 588

Extend a System.Windows.Forms.Button and change default Text in c#

I have created a custom control button by extending the System.Windows.Forms.Button class.

I have set the default .Text .Width and .Height in the constructor of the new class.

When I drop this control onto a form, the IDE is smart enough to pay attention to the Width and Height specified in the constructor and assign these properties to the new button being created, but it ignores the Text property, and assignes the .Text of the button to be "ucButtonConsumables1"

Is there a way to set the .Text to a default value of my choosing?

public partial class ucButtonConsumables : System.Windows.Forms.Button {
    public ucButtonConsumables() {

        this.Text = "Consumables";                   
        this.Width = 184;
        this.Height = 23;

        this.Click += new EventHandler(ucButtonConsumables_Click);

    }

    void ucButtonConsumables_Click(object sender, EventArgs e) {

        MessageBox.Show("Button Clicked")

    }

}

Upvotes: 5

Views: 3138

Answers (3)

Sergey Berezovskiy
Sergey Berezovskiy

Reputation: 236228

Hide Text property from designer serialization:

[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public override string Text
{
    get { return base.Text; }
    set { base.Text = value; }
}

Or create designer with default values:

public class ConsumablesButtonDesigner : System.Windows.Forms.Design.ControlDesigner
{
    public override void OnSetComponentDefaults()
    {
        base.OnSetComponentDefaults();
        Control.Text = "Consumables";
    }
}

And provide that designer to your button:

[Designer(typeof(ConsumablesButtonDesigner))]
public class ucButtonConsumables : Button
{
   //...
}

Upvotes: 3

Prakash
Prakash

Reputation: 823

Yes, it is not possible for doing it in the constructor. If you are sure that the value will not be changed again do it this way. Overriding the Text Property and returning the constant.

    public override string Text
    {
        get
        {
            return "Consumables";
        }
        set
        {
        }
    }

Upvotes: 0

Bilal Hashmi
Bilal Hashmi

Reputation: 1485

You have to override the Text property in derived class to change. 

public override string Text { get; set; }

Upvotes: -1

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