public static ContextMenuTag CreateCommonMenuItems(
MSWinForms.ContextMenuStrip Menu,
MSWinForms.ListView LV,
Options options = null)
{
// Use default options if none were passed
if (options == null)
options = new Options();
// If no menu passed, use the menu associated with the LV
if (Menu == null)
Menu = LV.ContextMenuStrip;
//
// Create the context
var Context = new ContextMenuTag()
{
lv = LV,
options = options,
menu = Menu
};
var DynMenus = new List<MSWinForms.ToolStripItem>();
//
// Copy/Select All
if (options.MFlags.HasFlag(MenuFlags.CopyAndSelect))
{
// Copy
Context.CopyItemMenu = new MSWinForms.ToolStripMenuItem()
{
ShortcutKeys = (MSWinForms.Keys.Control | MSWinForms.Keys.C),
Text = "Copy"
};
Context.CopyItemMenu.Click += new EventHandler(menuCommonLVCopyItem_Click);
// Select All
Context.SelectAllMenu = new MSWinForms.ToolStripMenuItem()
{
ShortcutKeys = (MSWinForms.Keys.Control | MSWinForms.Keys.A),
Text = "Select all"
};
Context.SelectAllMenu.Click += new EventHandler(menuCommonLVSelectAll_Click);
// DeSelect All
Context.DeSelectAllMenu = new MSWinForms.ToolStripMenuItem()
{
ShortcutKeys = (MSWinForms.Keys.Control | MSWinForms.Keys.D),
Text = "De-Select all"
};
Context.DeSelectAllMenu.Click += new EventHandler(menuCommonLVDeSelectAll_Click);
DynMenus.AddRange(new MSWinForms.ToolStripItem[]
{
Context.CopyItemMenu,
Context.SelectAllMenu,
Context.DeSelectAllMenu,
new MSWinForms.ToolStripSeparator(),
});
}
//
// Find
if (options.MFlags.HasFlag(MenuFlags.Find))
{
// FindFirst
Context.FindFirstMenu = new MSWinForms.ToolStripMenuItem()
{
ShortcutKeys = (MSWinForms.Keys.Control | MSWinForms.Keys.F),
Text = "Find",
};
Context.FindFirstMenu.Click += new EventHandler(menuCommonLVFindFirst_Click);
// FindNext
Context.FindNextMenu = new MSWinForms.ToolStripMenuItem()
{
ShortcutKeys = MSWinForms.Keys.F3,
Text = "Find Next",
};
Context.FindNextMenu.Click += new EventHandler(menuCommonLVFindNext_Click);
DynMenus.AddRange(new MSWinForms.ToolStripItem[]
{
Context.FindFirstMenu,
Context.FindNextMenu,
new MSWinForms.ToolStripSeparator(),
});
}
//
// Delete
if (options.MFlags.HasFlag(MenuFlags.Delete))
{
// Delete
Context.DeleteMenu = new MSWinForms.ToolStripMenuItem()
{
ShortcutKeys = MSWinForms.Keys.Delete,
Text = "Delete"
};
Context.DeleteMenu.Click += new EventHandler(menuCommonLVDeleteItem_Click);
DynMenus.AddRange(new MSWinForms.ToolStripItem[]
{
Context.DeleteMenu,
new MSWinForms.ToolStripSeparator()
});
}
//
// Export
if (options.MFlags.HasFlag(MenuFlags.Export))
{
var ExportToTextFile = new MSWinForms.ToolStripMenuItem()
{
ShortcutKeys = (MSWinForms.Keys.Control | MSWinForms.Keys.S),
Text = "Export to text file"
};
ExportToTextFile.Click += new EventHandler(menuCommonLVExportToTextFile_Click);
DynMenus.AddRange(new MSWinForms.ToolStripItem[]
{
ExportToTextFile,
new MSWinForms.ToolStripSeparator()
});
}
//
// Add all the dynamic menu items now
if (DynMenus.Count > 0)
{
if (DynMenus[DynMenus.Count - 1] is MSWinForms.ToolStripSeparator)
DynMenus.RemoveAt(DynMenus.Count - 1);
foreach (var m in DynMenus)
Menu.Items.Add(m);
}
//
// Dynamic menu to be created based on column item click?
if (options.OnGenColItemMenuItem != null && options.OnColItemMenuClick != null)
{
Menu.Opening += new CancelEventHandler(menuCommonLV_Opening);
Menu.Closed += new MSWinForms.ToolStripDropDownClosedEventHandler(menuCommonLV_Closed);
}
//
// Install column sorter
if (options.WantColSorting)
LV.ColumnClick += new MSWinForms.ColumnClickEventHandler(lvCommon_ColumnClick);
//
// Associate the context with the tags of the listview and the menu
Menu.Tag = Context;
LV.Tag = Context;
// Associate the menu with the LV
LV.ContextMenuStrip = Menu;
return Context;
}
private static void menuCommonLV_Opening(
object sender,
CancelEventArgs e)
{
// Get context
var lvCtx = GetCommonLVContext(sender);
if (lvCtx == null)
return;
// Bail out if no items selected
var lv = lvCtx.lv;
if (lv.SelectedItems.Count == 0)
return;
// Get the first selected item
var lvi = lv.SelectedItems[0];
//
// Determine the column index where the click occured
Point mousePosition = lv.PointToClient(MSWinForms.Control.MousePosition);
MSWinForms.ListViewHitTestInfo hit = lv.HitTest(mousePosition);
if (hit.SubItem == null)
return;
int ColIdx = hit.Item.SubItems.IndexOf(hit.SubItem);
//
// Call user callback to get some contextual info
UserMenuItem[] UserMenus;
bool bProceed = lvCtx.options.OnGenColItemMenuItem(
ColIdx,
lvi.SubItems[ColIdx].Text,
out UserMenus);
if (!bProceed)
{
e.Cancel = true;
return;
}
// Generate a dynamic menu item
lvCtx.GenColItemMenu.Add(new MSWinForms.ToolStripSeparator());
foreach (var m in UserMenus)
{
var menu = new MSWinForms.ToolStripMenuItem()
{
Text = m.Text,
Tag = m.Tag,
};
menu.Click += lvCtx.options.OnColItemMenuClick;
lvCtx.GenColItemMenu.Add(menu);
}
// Insert the user menus
foreach (var mi in lvCtx.GenColItemMenu)
lvCtx.menu.Items.Add(mi);
}