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showing tooltip for ultralistview headers
posted

Hi All,

How can i show a tooltip for ultralistview headers while in detailed view?

Thanks and Regards

Manikandan 

 

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  • 69832
    Offline posted

    The following code sample demonstrates how to show a tooltip for an UltraListViewColumnHeaderUIElement using the UltraToolTipManager:

    private UltraToolTipManager toolTipManager = null;
    private UltraToolTipInfo toolTipInfo = null;

    private void Form1_Load(object sender, EventArgs e)
    {
        this.listView.MainColumn.Text = "Name";
        this.listView.View = UltraListViewStyle.Details;

        int itemCount = 100;
        UltraListViewItem[ items = new UltraListViewItem[itemCount];
        for ( int i = 0; i < itemCount; i ++ )
        {
            itemsIdea = new UltraListViewItem();
            itemsIdea.Value = string.Format("Item {0}", i);
        }

        this.listView.Items.AddRange( items );

        this.listView.MouseEnterElement += new UIElementEventHandler(this.listView_MouseEnterElement);
        this.listView.MouseLeaveElement += new UIElementEventHandler(this.listView_MouseLeaveElement);

    }

    private void listView_MouseEnterElement(object sender, UIElementEventArgs e)
    {
        UltraListView listView = sender as UltraListView;

        //  Create the UltraToolTipInfo if it is null
        if ( this.toolTipInfo == null )
        {
            this.toolTipInfo = new UltraToolTipInfo();
            this.toolTipInfo.ToolTipTitle = "UltraListView";
        }
        //  Create the UltraToolTipManager if it is null, and associate
        //  it with the UltraListView and this form
        if ( this.toolTipManager == null )
        {
            this.toolTipManager = new UltraToolTipManager(this.components);
            this.toolTipManager.ContainingControl = this;
            this.toolTipManager.SetUltraToolTip( listView, this.toolTipInfo );
        }

        //  If the cursor is positioned over an UltraListViewColumnHeaderUIElement...
        UltraListViewColumnHeaderUIElement headerElement = e.Element as UltraListViewColumnHeaderUIElement;           
        if ( headerElement != null )
        {
            //  Get the column; check for null because it will be if this is
            //  the "dummy" column header, i.e., the one that is shown when
            //  the actual columns don't fill the entire width of the control.
            UltraListViewColumnBase column = headerElement.Column;
            if ( column != null )
            {
                //  Set the ToolTipText and show the tooltip
                this.toolTipInfo.ToolTipText = column.TextResolved;

                Rectangle toolTipRect = listView.RectangleToScreen(headerElement.Rect);
                Point toolTipLocation = new Point( toolTipRect.Right, toolTipRect.Top );
                this.toolTipManager.ShowToolTip( this.listView, toolTipLocation );
            }
        }
    }

    private void listView_MouseLeaveElement(object sender, UIElementEventArgs e)
    {
        //  Hide the tooltip when the cursor exits the bounds of an UltraListViewColumnHeaderUIElement
        if ( e.Element is UltraListViewColumnHeaderUIElement &&
             this.toolTipManager != null )
            this.toolTipManager.HideToolTip();
    }

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