protected internal void ActivatePage(WizardPage page, bool backButtonPressed)
{
if (BeforePageChanged != null)
{
PageChangedEventArgs barg = new PageChangedEventArgs(backButtonPressed);
BeforePageChanged(this, barg);
if (barg.Cancel)
{
return;
}
}
// Update the background colors of the tabs
Color nonSelectedColor = Color.FromArgb((int)(page.BackColor.R * 0.95f), (int)(page.BackColor.G * 0.95f), (int)(page.BackColor.B * 0.95f));
foreach (WizardPage wizPage in vPages)
{
if (wizPage == page)
{
wizPage.PageTabControl.TabPanel.PanelColor = page.BackColor;
wizPage.PageTabControl.Padding = new Padding(0, 0, 0, 3);
wizPage.PageTabControl.TabPanel.Selected = true;
}
else
{
wizPage.PageTabControl.TabPanel.PanelColor = nonSelectedColor;
wizPage.PageTabControl.Padding = new Padding(5, 0, 0, 3);
wizPage.PageTabControl.TabPanel.Selected = false;
}
}
//Deactivate the current
if (vActivePage != null)
{
vActivePage.Visible = false;
}
//Activate the new page
vActivePage = page;
if (vActivePage != null)
{
//Ensure that this panel displays inside the wizard
vActivePage.Parent = this;
if (this.Contains(vActivePage) == false)
{
this.Container.Add(vActivePage);
}
//Make it fill the space
vActivePage.Dock = DockStyle.Fill;
vActivePage.Visible = true;
vActivePage.BringToFront();
}
//What should the back button say
if (this.PageIndex > 0)
{
btnBack.Enabled = true;
}
else
{
btnBack.Enabled = false;
}
//What should the Next button say
if (vPages.IndexOf(vActivePage) < vPages.Count-1 && vActivePage.IsFinishPage == false)
{
btnNext.Enabled = true;
pnlNext.Visible = true;
//Don't close the wizard :)
btnNext.DialogResult = DialogResult.None;
if (alwaysShowFinishButton)
pnlFinish.Visible = true;
else
pnlFinish.Visible = false;
}
else
{
pnlFinish.Visible = true;
if (alwaysShowFinishButton)
{
btnNext.Enabled = false;
}
else
{
pnlNext.Visible = false;
}
//btnNext.Text = "Fi&nish";
//Dont allow a finish in designer
/*if (DesignMode == true
&& vPages.IndexOf(vActivePage) == vPages.Count-1)
{
btnNext.Enabled = false;
}*/
//else
//{
//btnNext.Enabled = true;
//If Not in design mode then allow a close
btnNext.DialogResult = DialogResult.OK;
//}
}
//Cause a refresh
if (vActivePage != null)
vActivePage.Invalidate();
else
this.Invalidate();
if (PageChanged != null)
PageChanged(this, EventArgs.Empty);
}
/// <summary>
/// Removes the given page from the collection
/// </summary>
/// <param name="value">Page to remove</param>
public void Remove( WizardPage value )
{
//Remove the item
List.Remove( value );
}
/// <summary>
/// Moves to the page given and calls <see cref="WizardPage.ShowFromNext"/>
/// </summary>
/// <remarks>Does NOT call <see cref="WizardPage.CloseFromNext"/> on the current page</remarks>
/// <param name="page"></param>
public void NextTo(WizardPage page)
{
//Since we have a page to go to, then there is no need to validate most of it
ActivatePage(page, false);
//Tell the application, I have just shown a page
vActivePage.OnShowFromNext(this);
}
/// <summary>
/// Adds a new page at a particular position in the Collection
/// </summary>
/// <param name="index">Position</param>
/// <param name="value">Page to be added</param>
public void Insert( int index, WizardPage value )
{
List.Insert(index, value );
}
/// <summary>
/// Finds the position of the page in the colleciton
/// </summary>
/// <param name="value">Page to find position of</param>
/// <returns>Index of Page in collection</returns>
public int IndexOf( WizardPage value )
{
return( List.IndexOf( value ) );
}
/// <summary>
/// Detects if a given Page is in the Collection
/// </summary>
/// <param name="value">Page to find</param>
/// <returns></returns>
public bool Contains( WizardPage value )
{
// If value is not of type Int16, this will return false.
return( List.Contains( value ) );
}
/// <summary>
/// Adds an array of pages into the collection. Used by the Studio Designer generated coed
/// </summary>
/// <param name="pages">Array of pages to add</param>
public void AddRange(WizardPage[] pages)
{
// Use external to validate and add each entry
foreach(WizardPage page in pages)
{
this.Add(page);
}
}
/// <summary>
/// Adds a WizardPage into the Collection
/// </summary>
/// <param name="value">The page to add</param>
/// <returns></returns>
public int Add(WizardPage value )
{
int result = List.Add( value );
return result;
}