/// <summary>
/// Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering.
/// </summary>
protected override void CreateChildControls()
{
base.CreateChildControls();
Controls.Clear();
RockControlHelper.CreateChildControls(this, Controls);
_sppStepProgramPicker = new StepProgramPicker();
_sppStepProgramPicker.ID = this.ID + "_sppStepProgramPicker";
_sppStepProgramPicker.AutoPostBack = true;
_sppStepProgramPicker.SelectedIndexChanged += _sppStepProgramPicker_SelectedIndexChanged;
_sppStepProgramPicker.Label = "Step Program";
StepProgramPicker.LoadDropDownItems(_sppStepProgramPicker, true);
Controls.Add(_sppStepProgramPicker);
_sspStepStatusPicker = new StepStatusPicker();
_sspStepStatusPicker.ID = this.ID + "_stpStepStatusPicker";
_sspStepStatusPicker.Label = "Step Status";
Controls.Add(_sspStepStatusPicker);
}