/// <summary>
/// Renders task view, which displays a gantt like
/// task view starting with a currently selected day for a month.
/// </summary>
/// <param name="writer">The HtmlTextWriter object that receives the content.</param>
private void RenderTaskView(HtmlTextWriter writer)
{
//Initialize constants
DateTime renderStartDate = TimescaleStartDate; //SelectedDate.Date;
DateTime renderEndDate = TimescaleEndDate; //Helper.GetTaskEndDate(SelectedDate); // can be customized for zooming later
int spanMax = (Helper.GetDaySpan(renderStartDate, renderEndDate) + 1);
// Create weekday row
writer.RenderBeginTag(HtmlTextWriterTag.Tr);
// Render empty top left space
writer.AddAttribute(HtmlTextWriterAttribute.Rowspan, "2");
RenderCellBorderAttributes(writer);
writer.RenderBeginTag(HtmlTextWriterTag.Td);
if(TaskItemHeaderTemplate != null)
{
TemplateItem header = new TemplateItem();
TaskItemHeaderTemplate.InstantiateIn(header);
header.RenderControl(writer);
}
writer.RenderEndTag();
for(DateTime cycleDate = TimescaleStartDate; cycleDate <= TimescaleEndDate; cycleDate = Helper.IncrementDate(TimescaleTopFormat, cycleDate, this.FirstDayOfWeek))
{
int colSpan = 0;
bool exitLoop = false;
// Detect if it spans out of boundaries
if(Helper.IncrementDate(TimescaleTopFormat, cycleDate, this.FirstDayOfWeek) > this.TimescaleEndDate)
{
colSpan = (int)((TimeSpan)(this.TimescaleEndDate - cycleDate)).TotalDays + 1;
exitLoop = true;
}
else
colSpan = (int)((TimeSpan)(Helper.IncrementDate(TimescaleTopFormat, cycleDate, this.FirstDayOfWeek) - cycleDate)).TotalDays;
CalendarHeaderStyle.AddAttributesToRender(writer);
RenderPaletteColor(writer, HtmlTextWriterStyle.BackgroundColor, CalendarHeaderStyle.BackColor, CalendarColorConstants.HeaderBackColor);
RenderPaletteColor(writer, HtmlTextWriterStyle.Color, CalendarHeaderStyle.ForeColor, CalendarColorConstants.HeaderForeColor);
writer.AddAttribute(HtmlTextWriterAttribute.Height, "17");
// 13/1/2005 - Begin
if (colSpan>0) // 13/1/2005 - End
writer.AddAttribute(HtmlTextWriterAttribute.Colspan, colSpan.ToString());
RenderCellBorderAttributes(writer);
writer.RenderBeginTag(HtmlTextWriterTag.Td);
if(colSpan >= 7) // only render those items that can be fully displayed
{
string href = "";
CalendarHeaderStyle.AddAttributesToRender(writer);
RenderPaletteColor(writer, HtmlTextWriterStyle.BackgroundColor, CalendarHeaderStyle.BackColor, CalendarColorConstants.HeaderBackColor);
RenderPaletteColor(writer, HtmlTextWriterStyle.Color, CalendarHeaderStyle.ForeColor, CalendarColorConstants.HeaderForeColor);
// [9/15/2004] --- Begin
if(this.DrillDownEnabled)
{
if(this.TimescaleTopFormat == TimescaleTopSpan.Month)
href = "javascript:" + this.Page.ClientScript.GetPostBackEventReference(this, "OnSelectedViewChange," + cycleDate.ToShortDateString() + "," + CalendarViewType.MonthView.GetHashCode());
else
href = "javascript:" + this.Page.ClientScript.GetPostBackEventReference(this, "OnSelectedViewChange," + cycleDate.ToShortDateString() + "," + CalendarViewType.WeekView.GetHashCode());
writer.AddAttribute(HtmlTextWriterAttribute.Href, href);
writer.RenderBeginTag(HtmlTextWriterTag.A);
RenderText(writer, cycleDate.ToString(TimescaleTopLabelFormat));
writer.RenderEndTag(); // </A>
}
else
{
href = cycleDate.ToShortDateString();
writer.AddAttribute(HtmlTextWriterAttribute.Value, href);
writer.RenderBeginTag(HtmlTextWriterTag.Div);
RenderText(writer, cycleDate.ToString(TimescaleTopLabelFormat));
writer.RenderEndTag(); // </Div>
}
// [9/15/2004] --- End
}
writer.RenderEndTag();
if(exitLoop)
break;
}
writer.RenderEndTag(); //tr
// Render month day numbers
writer.RenderBeginTag(HtmlTextWriterTag.Tr);
for(DateTime cycleDate = renderStartDate;cycleDate <= renderEndDate;cycleDate = Helper.IncrementDate(MatrixSpan.DaySpan, cycleDate))
{
CalendarHeaderStyle.AddAttributesToRender(writer);
RenderPaletteColor(writer, HtmlTextWriterStyle.BackgroundColor, CalendarHeaderStyle.BackColor, CalendarColorConstants.HeaderBackColor);
RenderPaletteColor(writer, HtmlTextWriterStyle.Color, CalendarHeaderStyle.ForeColor, CalendarColorConstants.HeaderForeColor);
writer.AddAttribute(HtmlTextWriterAttribute.Height, "17");
writer.AddAttribute(HtmlTextWriterAttribute.Width, TaskItemWidth.ToString()); // [9/15/2004]
writer.AddAttribute(HtmlTextWriterAttribute.Align, "center");
RenderCellBorderAttributes(writer);
writer.RenderBeginTag(HtmlTextWriterTag.Td);
CalendarHeaderStyle.AddAttributesToRender(writer);
RenderPaletteColor(writer, HtmlTextWriterStyle.BackgroundColor, CalendarHeaderStyle.BackColor, CalendarColorConstants.HeaderBackColor);
RenderPaletteColor(writer, HtmlTextWriterStyle.Color, CalendarHeaderStyle.ForeColor, CalendarColorConstants.HeaderForeColor);
// [9/15/2004] --- Begin
if(this.DrillDownEnabled)
{
String href = "javascript:" + this.Page.ClientScript.GetPostBackEventReference(this, "OnSelectedViewChange," + cycleDate.ToShortDateString() + "," + CalendarViewType.DayView.GetHashCode());
writer.AddAttribute(HtmlTextWriterAttribute.Href, href);
writer.RenderBeginTag(HtmlTextWriterTag.A);
RenderText(writer, cycleDate.ToString(TimescaleBottomLabelFormat));
writer.RenderEndTag(); // </A>
}
else
{
String href = cycleDate.ToShortDateString();
writer.AddAttribute(HtmlTextWriterAttribute.Value, href);
writer.RenderBeginTag(HtmlTextWriterTag.Div);
RenderText(writer, cycleDate.ToString(TimescaleBottomLabelFormat));
writer.RenderEndTag(); // </Div>
}
// [9/15/2004] --- End
writer.RenderEndTag(); //td
}
writer.RenderEndTag(); //tr
// Render tasks and spans here
for(int index = 0;index<Items.Count;index++)
{
CalendarItem item = Items[index];
if(!this.RemoveItems || (item.StartDate.Date >= renderStartDate && item.StartDate.Date <= renderEndDate) || (item.EndDate.Date >= renderStartDate && item.EndDate.Date <= renderEndDate) || (item.StartDate.Date <= renderStartDate && item.EndDate.Date >= renderEndDate))
{
int rowSpannedTotal = 0;
writer.RenderBeginTag(HtmlTextWriterTag.Tr);
// Render task name
RenderCellBorderAttributes(writer);
if(this.EventBarShow)
writer.AddAttribute(HtmlTextWriterAttribute.Height, (ItemHeight.Value+10).ToString());
else
writer.AddAttribute(HtmlTextWriterAttribute.Height, (ItemHeight.Value+6).ToString());
writer.RenderBeginTag(HtmlTextWriterTag.Td);
item.Render(writer, RenderPath);
writer.RenderEndTag(); //td
//Hashtable hash;
//if(this.MergeEvents)
// hash = MergeItems();
// Render box span
for(DateTime cycleDate = renderStartDate;cycleDate <= renderEndDate;)
{
bool isRendered = false;
DateTime endCycleDate = renderEndDate.AddDays(1);
if(item.IsWithinSpanEvent(MatrixSpan.DaySpan, cycleDate))
{
int colSpan = AddTaskItemAttributes(writer, cycleDate, item);
RenderCellBorderAttributes(writer);
writer.RenderBeginTag(HtmlTextWriterTag.Td);
item.SetRenderedDate(cycleDate);
//writer.AddStyleAttribute(HtmlTextWriterStyle.Width, (14 * colSpan).ToString() + "px");
item.RenderBoxTagAttributes(writer);
if(TaskItemBoxTemplate!=null) // render using template
{
writer.AddStyleAttribute("overflow", "hidden");
//writer.AddStyleAttribute("border", "solid 1px");
string strWidth = this.TaskItemWidth.ToString();
int iWidth = int.Parse(strWidth.Substring(0,strWidth.IndexOf("px")));
if(colSpan>2)
writer.AddStyleAttribute(HtmlTextWriterStyle.Width, (iWidth * colSpan + colSpan).ToString() + "px");
else
writer.AddStyleAttribute(HtmlTextWriterStyle.Width, (colSpan*(iWidth-2)).ToString() + "px");
writer.RenderBeginTag(HtmlTextWriterTag.Div);
item.Controls.Clear();// = (CalendarItem)item.Clone();
CalendarItem item2 = (CalendarItem)item.Clone();
TaskItemBoxTemplate.InstantiateIn(item2);
item2.DataBind();
item2.RenderControl(writer);
writer.RenderEndTag(); //div
}
item.RenderBoxEndTagAttributes(writer);
writer.RenderEndTag(); //td
rowSpannedTotal += colSpan;
cycleDate = cycleDate.AddDays(colSpan);
if(this.MergeEvents)
if(index != Items.Count - 1)
{
CalendarItem nextItem = Items[index+1];
// June 28 2004: Added .Date to the Start and EndDate
if(nextItem.StartDate.Date>item.EndDate.Date && nextItem.Label.CompareTo(item.Label)==0)
{
index++;
item = nextItem;
endCycleDate = item.StartDate.Date;
}
}
//isRendered = true;
}
else // render space before event
{
//endCycleDate = item.StartDate.Date;
if((item.StartDate.Date >= renderStartDate && item.StartDate.Date <= renderEndDate) || (item.AdjustedEndDate.Date >= renderStartDate && item.AdjustedEndDate.Date <= renderEndDate) || (item.StartDate.Date <= renderStartDate && item.AdjustedEndDate.Date >= renderEndDate))
endCycleDate = item.StartDate.Date;
else
endCycleDate = renderEndDate.AddDays(1);
}
while(cycleDate < endCycleDate)
{
int colSpan = 0;
bool finished = false;
if(Helper.IsWeekend(cycleDate, this.WorkWeek))//weekend, apply weekdaystyle
{
CalendarItemInactiveStyle.AddAttributesToRender(writer);
RenderPaletteColor(writer, HtmlTextWriterStyle.BackgroundColor, CalendarItemInactiveStyle.BackColor, CalendarColorConstants.ItemInactiveBackColor);
RenderPaletteColor(writer, HtmlTextWriterStyle.Color, CalendarItemInactiveStyle.ForeColor, CalendarColorConstants.ItemInactiveForeColor);
colSpan = 1;
}
else // colspan until weekend
{
colSpan = 1;
while((Helper.GetCalDayOfWeek(cycleDate.AddDays(colSpan).DayOfWeek)&WorkWeek)!=0 &&
(Helper.GetCalDayOfWeek(cycleDate.AddDays(colSpan).DayOfWeek)&FirstDayOfWeek)==0)
{
colSpan++;
}
//colSpan = 1;//6 - (int)cycleDate.DayOfWeek;
}
// Detect if colspan goes out of endCycleDate boundaries
if(cycleDate.AddDays(colSpan) >= endCycleDate)
{
int diff = (int)((TimeSpan)(cycleDate.AddDays(colSpan).Date - endCycleDate.Date)).TotalDays;
colSpan -= diff;
finished = true;
}
// Detect if colspan goes out of boundaries
rowSpannedTotal += colSpan;
if(rowSpannedTotal > spanMax)
colSpan -= rowSpannedTotal - spanMax;
cycleDate = cycleDate.AddDays(colSpan);
// [13/1/2005] - Begin
if(colSpan>0) // [13/1/2005] - End
writer.AddAttribute(HtmlTextWriterAttribute.Colspan, colSpan.ToString());
RenderCellBorderAttributes(writer);
writer.RenderBeginTag(HtmlTextWriterTag.Td);
writer.RenderEndTag(); //td
if(finished)
break;
}
if(isRendered)
break;
// For some reason the expression in for statement doesn't cause termination
//if(cycleDate.Date < renderEndDate.Date)
// break;
}
writer.RenderEndTag(); //tr
}
}
}
