/// <summary>
/// This function renders sort icon on the basis of
/// passed direction and visibility by the caller.
/// </summary>
private static void RenderSortIcon(HtmlTextWriter writer, SortExpression sortExpr, int?sequence)
{
SortDirection dir = sortExpr.GetSortDirection();
if (dir == SortDirection.Ascending)
{
//_btnIcon.CustomIconName = " ui-icon-triangle-1-n";
ButtonEx.RenderIcon(writer, "ui-icon-triangle-1-n");
}
else
{
//_btnIcon.CustomIconName = " ui-icon-triangle-1-s";
ButtonEx.RenderIcon(writer, "ui-icon-triangle-1-s");
}
//_btnIcon.RenderControl(writer);
// Dynamically replaced with sort sequence
writer.RenderBeginTag(HtmlTextWriterTag.Sup);
writer.Write(sequence);
writer.RenderEndTag(); // sup
}
/// <summary>
/// Master row markup looks like:
/// <tr>
/// <td colspan="x">
/// <table>
/// <tbody>
/// <tr>
/// <td>Header Text 1: Header Value 1</td>
/// ...
/// </tr>
/// </tbody>
/// </table>
/// </td>
/// </tr>
/// </summary>
/// <remarks>
/// The method renders the content of <c>GridViewExMasterRow</c> with in gridview header using custom HTML table.
/// </remarks>
private void RenderMasterRowHeader(HtmlTextWriter writer)
{
// Render the master row before we render the normal row
if (_rowInfo._masterRowIndex != 0)
{
// We are not the first master row.
// Enclose the rows of this master in a seperate tbody for ease of scripting
writer.Write("</tbody><tbody>");
}
writer.AddAttribute(HtmlTextWriterAttribute.Class, "gvex-masterrow ui-widget-content");
writer.RenderBeginTag(HtmlTextWriterTag.Tr);
writer.AddStyleAttribute(HtmlTextWriterStyle.TextAlign, "right");
writer.AddStyleAttribute(HtmlTextWriterStyle.WhiteSpace, "nowrap");
writer.RenderBeginTag(HtmlTextWriterTag.Td);
writer.Write("{0:N0} ", _rowInfo._masterRowIndex + 1);
/*
* <A class="ui-button ui-widget ui-state-default ui-corner-all ui-button-icon-only">
* <SPAN class="ui-button-icon-primary ui-icon ui-icon-gear" />
* <SPAN class=ui-button-text>Hello</SPAN>
*
*/
//Folder icon here
writer.RenderBeginTag(HtmlTextWriterTag.Sup);
ButtonEx.RenderIcon(writer, "ui-icon-folder-open");
writer.RenderEndTag(); // sup;
writer.RenderEndTag(); //td
// Here are aggregating the column spans of each visible header cell. If the column span is 0, we
// treat it as 1.
int visibleColumnCount = this.Grid.HeaderRow.Cells.Cast <DataControlFieldHeaderCell>()
.Where(p => p.Visible)
.Aggregate(0, (total, next) => total + (next.ColumnSpan == 0 ? 1 : next.ColumnSpan));
// Subtract 2 for the first and last columns
int nColSpan = visibleColumnCount - 2;
writer.AddAttribute(HtmlTextWriterAttribute.Colspan, nColSpan.ToString());
writer.RenderBeginTag(HtmlTextWriterTag.Td);
int i = 0;
foreach (int masterIndex in this.Grid.MasterColumnIndexes.OrderBy(p => p))
{
DataControlField col = this.Grid.Columns[masterIndex];
SortExpression colSortExpression = new SortExpression(col.SortExpression);
int nSortIndex = this.Grid.SortExpressions.Select((p, index) => p.Equals(colSortExpression) ? index : -1)
.Single(p => p != -1);
SortDirection dirIcon = colSortExpression.GetSortDirection();
col.ItemStyle.AddAttributesToRender(writer);
writer.AddAttribute(HtmlTextWriterAttribute.Class, "header-entry");
TableCell cell = this.Cells[masterIndex];
if (cell.HasControls())
{
// Ignore header text
writer.RenderBeginTag(HtmlTextWriterTag.Div);
foreach (Control ctl in cell.Controls)
{
ctl.RenderControl(writer);
}
writer.RenderEndTag(); // div
}
else
{
writer.RenderBeginTag(HtmlTextWriterTag.Span);
if (string.IsNullOrEmpty(col.HeaderText))
{
writer.Write(cell.Text);
}
else
{
writer.RenderBeginTag(HtmlTextWriterTag.Strong);
GridViewExHeaderCell.RenderNotSortableWithIcon(writer, col.HeaderText, dirIcon, nSortIndex + 1);
writer.RenderEndTag(); // strong
writer.Write(": {0}", cell.Text);
}
writer.RenderEndTag(); // span
}
++i;
if (i % 2 == 0)
{
writer.WriteBreak();
}
}
writer.RenderEndTag(); //td
// Row count
writer.AddStyleAttribute(HtmlTextWriterStyle.TextAlign, "right");
writer.RenderBeginTag(HtmlTextWriterTag.Td);
writer.Write("{0:N0} row{1}", _rowInfo._countRowsInMaster, _rowInfo._countRowsInMaster == 1 ? "" : "s");
writer.RenderEndTag();
writer.RenderEndTag(); //tr
}