ColorDialog.AllowFullOpen Property


Gets or sets a value indicating whether the user can use the dialog box to define custom colors.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public virtual bool AllowFullOpen { get; set; }

Property Value

Type: System.Boolean

true if the user can define custom colors; otherwise, false. The default is true.

When set to false, the associated button in the dialog box is disabled and the user cannot access the custom colors control in the dialog box.

The following example illustrates the creation of new ColorDialog. This example requires that the method is called from within an existing form that has a TextBox and Button placed on it.

private void button1_Click(object sender, System.EventArgs e)
    ColorDialog MyDialog = new ColorDialog();
    // Keeps the user from selecting a custom color.
    MyDialog.AllowFullOpen = false ;
    // Allows the user to get help. (The default is false.)
    MyDialog.ShowHelp = true ;
    // Sets the initial color select to the current text color.
    MyDialog.Color = textBox1.ForeColor ;

    // Update the text box color if the user clicks OK 
    if (MyDialog.ShowDialog() == DialogResult.OK)
        textBox1.ForeColor =  MyDialog.Color;

.NET Framework
Available since 1.1
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