Mouse Operation

Question

Hi everyone I have the following codes for mouse scrolling over data inside a ListView item. Here I am using ListView listView1 in the form. The codes are working fine. But I want to make this code inside a class file so that for various ListView i can use the same code. I just want to pass the different different ListView name as a parameter to this function. I tried but its throwing errors. Can anyone help me on this. private void listView1_MouseWheel(object sender MouseEventArgs e) { try { if (e.Delta = 0) { if (listView1.SelectedIndices[0] == 0) { listView1.Items[0].Selected = true; } else { i--; listView1.Items[i].Selected = true; listView1.Select(); } } } catch { } } regards bjb

b b · Answer

Hi Roie Bar I tried your code but below line showing error. OnMouseWheel(MouseEventArgs e) If i use OnMouseWheel(object sender MouseEventArgs e) instead of this then how i have to call the method as i want to pass ListView name as a parameter. Can you please help. regards bjb

Master Billa · Answer

HI Here is sample code to do this given in MSDN http://msdn.microsoft.com/en-us/library/system.windows.forms.listview_events%28VS.71%29.aspx Thank you

Roei Bar · Answer

here you go : public class ListViewExtender : ListView { public ListView WorkingListView; public int index; protected override void OnMouseWheel(MouseEventArgs e) { base.OnMouseWheel(e); try { if (e.Delta { index = WorkingListView.SelectedIndices[0]; if (index else if (e.Delta >= 0) { if (WorkingListView.SelectedIndices[0] == 0) { WorkingListView.Items[0].Selected = true; } else { i--; WorkingListView.Items[i].Selected = true; WorkingListView.Select(); } } } catch { } } }