WinForms: Alternative to SplitContainer?

Question

Are there any alternative controls someone can suggest to replace the WinForms SplitContainer? I don\'t like how the SplitContainer shows that weird, dotted strip when its s

Answer 1

You can't tinker with SplitContainer at all. One possibility is to eliminate it entirely if you are only using it to resize a control. You could use mouse events on the control itself instead. Drop a TreeView on a form and dock it on the left. Subscribe to the MouseDown/Move/Up events and write something like this:

    bool mDragging;

    private bool onTreeEdge(Point pos) {
        return pos.X >= treeView1.DisplayRectangle.Right - 3;
    }
    private void treeView1_MouseMove(object sender, MouseEventArgs e) {
        treeView1.Cursor = mDragging || onTreeEdge(e.Location) ? Cursors.VSplit : Cursors.Default;
        if (mDragging) treeView1.Width = e.X;
    }
    private void treeView1_MouseDown(object sender, MouseEventArgs e) {
        mDragging = onTreeEdge(e.Location);
        if (mDragging) treeView1.Capture = true;
    }
    private void treeView1_MouseUp(object sender, MouseEventArgs e) {
        mDragging = false;
    }