[ACCEPTED]-Determine clicked column in ListView-listview

Accepted answer

Score: 18

Jeez, everyone's too lazy to post code. There 2 are three steps to the process:

Get the mouse position using Control.MousePosition and convert to client coordinates.
Call the HitTest function to find what the mouse is pointing to. This returns an object with lots of information except the actual column number so...
Search the subitems array using IndexOf to find the column number.

Here's the 1 code:

private void listViewMasterVolt_DoubleClick(object sender, EventArgs e)
{
    Point mousePosition = myListView.PointToClient(Control.MousePosition);
    ListViewHitTestInfo hit = myListView.HitTest(mousePosition);
    int columnindex = hit.Item.SubItems.IndexOf(hit.SubItem);
}

Score: 4

The ListView control has a HitTest method. You give it 4 the x- and y-coordinates of the mouse click 3 event, and it gives you an object that tells 2 you the row (list view item) and column 1 (list view subitem) at that point.

Score: 0

This is VB.NET code, but the objects should 1 be the same.

Private LVUsersLastHit As Point
    Private Sub lvUsers_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles lvUsers.MouseUp
        Me.LVUsersLastHit = e.Location
    End Sub
    Private Sub LvUsers_Doubleclick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lvUsers.DoubleClick
        Dim HTI As ListViewHitTestInfo = Me.lvUsers.HitTest(Me.LVUsersLastHit)
        If HTI.Item Is Nothing OrElse HTI.SubItem Is Nothing Then Exit Sub 'nothing was dblclicked
        MsgBox("doubleClicked the " & HTI.Item.ToString & " Item  on the " & HTI.SubItem.ToString & " sub Item")
    End Sub

Score: 0

the e.Column actually holds the index

    private void lv_ColumnClick(object sender, ColumnClickEventArgs e)
    {            
        Int32 colIndex = Convert.ToInt32(e.Column.ToString());
        lv.Columns[colIndex].Text = "new text";

    }

Source: stackoverflow.com

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