protected override void CreateChildControls()
{
foreach (FormElementData item in this._qData.Children.OrderBy(c => c.OrdinalPosition))
{
this.Controls.Add(FormElementControl.GetControl(item));
}
base.CreateChildControls();
}
//***************************************************************************
// Private Methods
//
protected override void Render(HtmlTextWriter writer)
{
this.EnsureChildControls();
writer.BeginRender();
try
{
FormElementControl.AddElementStyleAttributes(writer, this._qData);
writer.RenderBeginTag(HtmlTextWriterTag.Table);
for (int y = 0; y < this.RowCount; y++)
{
writer.RenderBeginTag(HtmlTextWriterTag.Tr);
for (int x = 0; x < this.ColumnCount; x++)
{
FormElementData[] cellData = this._qData.Children.Where(c => c.RowIndex == y && c.ColumnIndex == x).ToArray();
if (cellData.Length > 1)
{
// If we found more than one, I don't even want to try and
// figure out how to handle that one right now.
throw new Exception(string.Format("Row {0}, Column {1} of the grid contains more than one child cell definition. Cannot render more than one cell in each row/column intersect position.", y + 1, x + 1));
}
else if (cellData.Length < 1)
{
// If no child cell is found at this intersection, just render
// an empty table cell, so we don't "break" the HTML output.
writer.RenderBeginTag(HtmlTextWriterTag.Td);
writer.RenderEndTag();
}
else if (cellData[0].DisplayType != FormElementDisplayType.GridCell)
{
// If the item we found isn't for a grid cell, that's a problem.
// I'm not coding around that "weirdness". At least not yet.
throw new Exception(string.Format("Cannot render a form element of type {0} directly below a Grid element without a parent GridCell. Please check your data for correct parent/child hierarchy.", cellData[0].DisplayType));
}
else
{
// We've got data for a single cell, so create a control.
FormElementControl ctrl = FormElementControl.GetControl(cellData[0]);
this.Controls.Add(ctrl);
ctrl.RenderControl(writer);
}
}
writer.RenderEndTag(); // TR
}
writer.RenderEndTag(); // TABLE
}
finally
{ writer.EndRender(); }
base.Render(writer);
}