CODEWITHSUNDEEP
c#winformslistview
Sathish
Sathish

Reputation: 1631

Determine clicked column in ListView

I need to get the column clicked in a ListView in C#

I have some sample code from How to determine the clicked column index in a Listview but I'm not sure how I should implement it.

Upvotes: 11

Views: 23963

Answers (5)

Rafael Alfredo Zelaya Amaya
Rafael Alfredo Zelaya Amaya

Reputation: 443

Maybe it's for the new frameworks or something, but with my VS2022 I can call the ColumnClick event and use e.Column and that gives me the index, 0 for first column, 1 for second column and so on.

example:

private void ListViewD_ColumnClick(object sender, ColumnClickEventArgs e)
{
    // MessageBox.Show("column index: " + e.Column);
    if(e.Column == 1) // column index
    {
        MessageBox.Show("Clicked on second column");
    }
}

Upvotes: 1

Bernhard
Bernhard

Reputation: 27

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";
    }

Upvotes: 1

Anthony
Anthony

Reputation: 1

This is VB.NET code, but the objects should 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

Upvotes: 0

Adam Pierce
Adam Pierce

Reputation: 34375

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

  1. Get the mouse position using Control.MousePosition and convert to client coordinates.
  2. 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...
  3. Search the subitems array using IndexOf to find the column number.

Here's the 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);
}

Upvotes: 20

Tim Robinson
Tim Robinson

Reputation: 54764

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

Upvotes: 4

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