private void SetGrpState(ListViewGroup lvGroup, ListViewGroupState grpState, string task)
{
if (OSVersion.IsBelow(WindowsVersion.Vista))
{
return;
}
if (lvGroup == null || lvGroup.ListView == null)
{
return;
}
if (lvGroup.ListView.InvokeRequired)
{
lvGroup.ListView.BeginInvoke(new CallBackSetGroupState(SetGrpState), lvGroup, grpState, task);
}
else
{
int? GrpId = GetGroupID(lvGroup);
int gIndex = lvGroup.ListView.Groups.IndexOf(lvGroup);
LVGroup group = new LVGroup();
group.CbSize = LVGroup.SizeOf;
if (!string.IsNullOrEmpty(task))
{
group.Mask =
ListViewGroupMask.Task |
ListViewGroupMask.State |
ListViewGroupMask.Align;
group.Task = task;
group.CchTask = task.Length;
}
else
{
group.Mask = ListViewGroupMask.State;
}
group.GroupState = grpState;
if (GrpId != null)
{
group.GroupId = GrpId.Value;
SendMessage(this.Handle, LVM_SetGroupInfo, GrpId.Value, ref group);
}
else
{
group.GroupId = gIndex;
SendMessage(this.Handle, LVM_SetGroupInfo, gIndex, ref group);
}
lvGroup.ListView.Refresh();
}
}
private void SetGrpState(ListViewGroup lvGroup, ListViewGroupState grpState, string task)
{
if (OSVersion.IsBelow(WindowsVersion.Vista))
{
return;
}
if (lvGroup == null || lvGroup.ListView == null)
{
return;
}
if (lvGroup.ListView.InvokeRequired)
{
lvGroup.ListView.Invoke(new CallBackSetGroupState(SetGrpState), lvGroup, grpState, task);
}
else
{
int? GrpId = GetGroupID(lvGroup);
int gIndex = lvGroup.ListView.Groups.IndexOf(lvGroup);
LVGroup group = new LVGroup();
group.CbSize = Marshal.SizeOf(group);
group.Mask |= ListViewGroupMask.Task
| ListViewGroupMask.State
| ListViewGroupMask.Align;
IntPtr taskString = Marshal.StringToHGlobalAuto(task);
if (task.Length > 1)
{
group.Task = taskString;
group.CchTask = task.Length;
}
group.GroupState = grpState;
if (GrpId != null)
{
group.GroupId = GrpId.Value;
SendMessage(base.Handle, LVM_SetGroupInfo, GrpId.Value, ref group);
}
else
{
group.GroupId = gIndex;
SendMessage(base.Handle, LVM_SetGroupInfo, gIndex, ref group);
}
lvGroup.ListView.Refresh();
Marshal.FreeHGlobal(taskString);
}
}
private static extern IntPtr SendMessage(IntPtr hWnd, int Msg, int wParam, ref LVGroup lParam);
private void SetGrpState(ListViewGroup lvGroup, ListViewGroupState grpState, string task)
{
if (OSVersion.IsBelow(WindowsVersion.Vista))
return;
if (lvGroup == null || lvGroup.ListView == null)
return;
if (lvGroup.ListView.InvokeRequired)
lvGroup.ListView.BeginInvoke(new CallBackSetGroupState(SetGrpState), lvGroup, grpState, task);
else
{
int? GrpId = GetGroupID(lvGroup);
int gIndex = lvGroup.ListView.Groups.IndexOf(lvGroup);
LVGroup group = new LVGroup();
group.CbSize = LVGroup.SizeOf;
if (!string.IsNullOrEmpty(task))
{
group.Mask =
ListViewGroupMask.Task |
ListViewGroupMask.State |
ListViewGroupMask.Align;
group.Task = task;
group.CchTask = task.Length;
}
else
{
group.Mask = ListViewGroupMask.State;
}
group.GroupState = grpState;
if (GrpId != null)
{
group.GroupId = GrpId.Value;
SendMessage(this.Handle, LVM_SetGroupInfo, GrpId.Value, ref group);
}
else
{
group.GroupId = gIndex;
SendMessage(this.Handle, LVM_SetGroupInfo, gIndex, ref group);
}
lvGroup.ListView.Refresh();
}
}
private static extern IntPtr SendMessage(IntPtr hWnd, int Msg, int wParam, ref LVGroup lParam);
private void SetGrpState(ListViewGroup lvGroup, ListViewGroupState grpState, string task)
{
if (OSVersion.IsBelow(WindowsVersion.Vista))
return;
if (lvGroup == null || lvGroup.ListView == null)
return;
if (lvGroup.ListView.InvokeRequired)
lvGroup.ListView.Invoke(new CallBackSetGroupState(SetGrpState), lvGroup, grpState, task);
else
{
int? GrpId = GetGroupID(lvGroup);
int gIndex = lvGroup.ListView.Groups.IndexOf(lvGroup);
LVGroup group = new LVGroup();
group.CbSize = Marshal.SizeOf(group);
group.Mask |= ListViewGroupMask.Task
| ListViewGroupMask.State
| ListViewGroupMask.Align;
IntPtr taskString = Marshal.StringToHGlobalAuto(task);
if (task.Length > 1)
{
group.Task = taskString;
group.CchTask = task.Length;
}
group.GroupState = grpState;
if (GrpId != null)
{
group.GroupId = GrpId.Value;
SendMessage(base.Handle, LVM_SetGroupInfo, GrpId.Value, ref group);
}
else
{
group.GroupId = gIndex;
SendMessage(base.Handle, LVM_SetGroupInfo, gIndex, ref group);
}
lvGroup.ListView.Refresh();
Marshal.FreeHGlobal(taskString);
}
}