/// <summary>
/// 渲染List到writer
/// </summary>
/// <param name="writer"></param>
/// <param name="lists">表头同一层的List</param>
/// <param name="style">表头样式</param>
/// <param name="maxDepth">最大深度</param>
/// <param name="currentDepth">当前深度</param>
private void RenderListToWriter(ref string writer, PFGrid grid, IList <PFGridMultiHeader> lists, int maxDepth, int currentDepth = 1)
{
//因为header内部是td,可以认为首尾已经各有一个tr
if (lists != null)
{
//显示下一层
var next = new List <PFGridMultiHeader>();
//显示头
foreach (var i in lists)
{
i.RenderHeaderToWrite(ref writer, grid, maxDepth, currentDepth);
if (i.Children != null)
{
next.AddRange(i.Children); //为了免于遍历两次,放到这里--wxj20180713
}
}
////显示下一层
//var next = new List<PFGridMultiHeader>();
//foreach (var i in lists)
//{
// if (i.Children != null) next.AddRange(i.Children);
//}
if (next.Count > 0)
{
writer += "</tr>";
writer += string.Format("<tr class='{0}'>", grid.GetHeadClass());
RenderListToWriter(ref writer, grid, next, maxDepth, ++currentDepth);
}
}
}
/// <summary>
/// 渲染表头td到writer
/// </summary>
/// <param name="writer"></param>
/// <param name="maxDepth">最大深度</param>
/// <param name="currentDepth">当前深度</param>
private void RenderHeaderToWrite(ref string writer, PFGrid grid, int maxDepth, int currentDepth)
{
if (string.IsNullOrWhiteSpace(_text))
{
return;
}
//if (Children != null && Children.Count > 1)
if (Children != null && Children.Count > 0) //大于0才是对的--wxj20180906
{
_columnSpan = GetAllLeafCount(a => a.Visible); //GetAllChildrenCount();//
}
else if (maxDepth > currentDepth)
{
_rowSpan = maxDepth - currentDepth + 1;
}
var styles = new List <string>();
if (!Visible)
{
styles.Add("display:none");
}
if (//(!_isFirstColumn)&&
(!string.IsNullOrWhiteSpace(_width)))
{
styles.Add("width:" + _width);
styles.Add("min-width:" + _width);//th的width是不会撑开table的,但min-width可以
}
;
//if (!string.IsNullOrWhiteSpace(_width)) { styles.Add("width:"+_width); }//现在的树组件,如果只有一列不设置宽度时,那列的样式就会很长,另外,树型列的宽度也不应该设置.所以暂时让TreeGrid自己控制列宽吧
var style = styles.Any() ? string.Format("style ='{0}' ", string.Join(";", styles)) : "";
var dataIndex = string.IsNullOrWhiteSpace(_dataIndex) ? "" : ("field-name=" + _dataIndex);
writer += string.Format("<th {1} {2} {3} {4} >{0}</th>", _text, _columnSpan > 1 ? ("colspan=" + _columnSpan) : "", _rowSpan > 1 ? ("rowspan=" + _rowSpan) : "", style, dataIndex);
}
/// <summary>
/// 渲染到writer
/// </summary>
/// <param name="writer"></param>
/// <param name="style">表头样式</param>
public string Html(PFGrid grid)
{
if (Children == null)
{
return("");
}
var selectTh = "";
var depth = GetDepth() - 1;
var selectThRowSpan = depth > 1 ? ("rowspan=" + depth) : "";
switch (grid.GetSelectMode())
{
case PFGrid.SelectMode.Single:
selectTh = string.Format("<th {0}>选择</th>", selectThRowSpan);
break;
case PFGrid.SelectMode.Multi:
selectTh = string.Format("<th {0}><input type=\"checkbox\" class=\"pf-row-select-all\">选择</th>", selectThRowSpan);
break;
default:
break;
}
var html = string.Format("<thead><tr class='{0}' >{1}",
grid.GetHeadClass(),
selectTh
);
RenderListToWriter(ref html, grid, Children, depth);//第一层的header是不输出的,所以要减1
html += "</tr></thead>";
return(html);
}