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using System;
using System.Data;
using System.Collections;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
namespace CSSFriendly
{
public class DataListAdapter : System.Web.UI.WebControls.Adapters.WebControlAdapter
{
private WebControlAdapterExtender _extender = null;
private WebControlAdapterExtender Extender
{
get
{
if (((_extender == null) && (Control != null)) ||
((_extender != null) && (Control != _extender.AdaptedControl)))
{
_extender = new WebControlAdapterExtender(Control);
}
System.Diagnostics.Debug.Assert(_extender != null, "CSS Friendly adapters internal error", "Null extender instance");
return _extender;
}
}
private int RepeatColumns
{
get
{
DataList dataList = Control as DataList;
int nRet = 1;
if (dataList != null)
{
if (dataList.RepeatColumns == 0)
{
if (dataList.RepeatDirection == RepeatDirection.Horizontal)
{
nRet = dataList.Items.Count;
}
}
else
{
nRet = dataList.RepeatColumns;
}
}
return nRet;
}
}
/// ///////////////////////////////////////////////////////////////////////////////
/// PROTECTED
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
if (Extender.AdapterEnabled)
{
RegisterScripts();
}
}
protected override void RenderBeginTag(HtmlTextWriter writer)
{
if (Extender.AdapterEnabled)
{
Extender.RenderBeginTag(writer, "AspNet-DataList");
}
else
{
base.RenderBeginTag(writer);
}
}
protected override void RenderEndTag(HtmlTextWriter writer)
{
if (Extender.AdapterEnabled)
{
Extender.RenderEndTag(writer);
}
else
{
base.RenderEndTag(writer);
}
}
protected override void RenderContents(HtmlTextWriter writer)
{
if (Extender.AdapterEnabled)
{
DataList dataList = Control as DataList;
if (dataList != null)
{
writer.Indent++;
writer.WriteLine();
writer.WriteBeginTag("table");
writer.WriteAttribute("cellpadding", "0");
writer.WriteAttribute("cellspacing", "0");
writer.WriteAttribute("summary", Control.ToolTip);
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
if (dataList.HeaderTemplate != null)
{
PlaceHolder container = new PlaceHolder();
dataList.HeaderTemplate.InstantiateIn(container);
container.DataBind();
if ((container.Controls.Count == 1) && typeof(LiteralControl).IsInstanceOfType(container.Controls[0]))
{
writer.WriteLine();
writer.WriteBeginTag("caption");
writer.Write(HtmlTextWriter.TagRightChar);
LiteralControl literalControl = container.Controls[0] as LiteralControl;
writer.Write(literalControl.Text.Trim());
writer.WriteEndTag("caption");
}
else
{
writer.WriteLine();
writer.WriteBeginTag("thead");
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
writer.WriteLine();
writer.WriteBeginTag("tr");
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
writer.WriteLine();
writer.WriteBeginTag("th");
writer.WriteAttribute("colspan", RepeatColumns.ToString());
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
writer.WriteLine();
container.RenderControl(writer);
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("th");
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("tr");
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("thead");
}
}
if (dataList.FooterTemplate != null)
{
writer.WriteLine();
writer.WriteBeginTag("tfoot");
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
writer.WriteLine();
writer.WriteBeginTag("tr");
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
writer.WriteLine();
writer.WriteBeginTag("td");
writer.WriteAttribute("colspan", RepeatColumns.ToString());
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
PlaceHolder container = new PlaceHolder();
dataList.FooterTemplate.InstantiateIn(container);
container.DataBind();
container.RenderControl(writer);
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("td");
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("tr");
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("tfoot");
}
if (dataList.ItemTemplate != null)
{
writer.WriteLine();
writer.WriteBeginTag("tbody");
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
int nItemsInColumn = (int)Math.Ceiling(((Double)dataList.Items.Count) / ((Double)RepeatColumns));
for (int iItem = 0; iItem < dataList.Items.Count; iItem++)
{
int nRow = iItem / RepeatColumns;
int nCol = iItem % RepeatColumns;
int nDesiredIndex = iItem;
if (dataList.RepeatDirection == RepeatDirection.Vertical)
{
nDesiredIndex = (nCol * nItemsInColumn) + nRow;
}
if ((iItem % RepeatColumns) == 0)
{
writer.WriteLine();
writer.WriteBeginTag("tr");
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
}
writer.WriteLine();
writer.WriteBeginTag("td");
writer.Write(HtmlTextWriter.TagRightChar);
writer.Indent++;
foreach (Control itemCtrl in dataList.Items[iItem].Controls)
{
itemCtrl.RenderControl(writer);
}
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("td");
if (((iItem + 1) % RepeatColumns) == 0)
{
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("tr");
}
}
if ((dataList.Items.Count % RepeatColumns) != 0)
{
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("tr");
}
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("tbody");
}
writer.Indent--;
writer.WriteLine();
writer.WriteEndTag("table");
writer.Indent--;
writer.WriteLine();
}
}
else
{
base.RenderContents(writer);
}
}
/// ///////////////////////////////////////////////////////////////////////////////
/// PRIVATE
private void RegisterScripts()
{
}
}
}
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