CODEWITHSUNDEEP
c#winformscontrols
Moslem7026
Moslem7026

Reputation: 3338

Detecting which type of control is active

for detect that which controls is activated in windows form 

this.ActiveControl = NameOfControl;

how about detect type of control , for example active control is button or textbox ?

New Edit:

i want to do something on keypress if active control is type of textBox else do nothing 

protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            if (this.ActiveControl == xxxx)
            {
                //do SomeThing
            }
              return base.ProcessCmdKey(ref msg, keyData);
        }

in xxx i should type of name of control , but how can i do for all control that is type of text box?

Upvotes: 2

Views: 5175

Answers (3)

Romano Zumbé
Romano Zumbé

Reputation: 8079

You could iterate over all controls on your Form and set an event handler for the GotFocus Event. In this Event handler you would set the variable:

    Control ActiveControl = null;

    private void Form1_Load(object sender, EventArgs e)
    {
        foreach (Control c in this.Controls)
        {
           if(c is TextBox)
           {
            c.GotFocus += (s, o) =>
                {
                    this.ActiveControl = s as Control;
                };
           }
        }
    }

When you use your ActiveControl objekt test for the type with the "is" operator.

Upvotes: 1

shfire
shfire

Reputation: 847

Use .GetType(), for example this.ActiveControl.GetType() == typeof(Button)

Upvotes: 1

User 12345678
User 12345678

Reputation: 7804

To determine whether an active control is a Button or TextBox you could use the is operator. The is operator checks if an object is compatible with a given type. If the Control is compatible with a Button and the expression yields true, then the Control is a Button.

if (ActiveControl is Button)
{

}
else if (ActiveControl is TextBox)
{

}

Upvotes: 3

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