protected override void RenderContent(HtmlTextWriter writer)
{
if(Utility.IsEmptyCollection(this.DataSource))
{
if(_emptyTemplate != null)
{
using(var literal = new Literal())
{
_emptyTemplate.InstantiateIn(literal);
literal.RenderControl(writer);
}
}
return;
}
IEnumerable dataItems = this.DataSource as IEnumerable;
if(dataItems == null || dataItems.GetType() == typeof(string))
{
var item = new DataItemContainer<ListView>(this, this.DataSource, 0);
this.RenderItem(writer, item);
}
else
{
int index = 0;
foreach(var dataItem in dataItems)
{
FormExtension.PushDataItem(this.Page, dataItem, index);
var item = new DataItemContainer<ListView>(this, dataItem, index++);
this.RenderItem(writer, item);
FormExtension.PopDataItem(this.Page);
}
}
}
protected override void RenderEndTag(HtmlTextWriter writer)
{
if(_footerTemplate != null)
{
using(var literal = new Literal())
{
_footerTemplate.InstantiateIn(literal);
literal.RenderControl(writer);
}
}
if(this.RenderMode != ListRenderMode.None)
writer.RenderEndTag();
}
protected override void RenderBeginTag(HtmlTextWriter writer)
{
var tagName = string.Empty;
switch(this.RenderMode)
{
case ListRenderMode.List:
tagName = "dl";
break;
case ListRenderMode.BulletList:
tagName = "ul";
break;
case ListRenderMode.OrderedList:
tagName = "ol";
break;
}
if(!string.IsNullOrWhiteSpace(tagName))
{
if(!string.IsNullOrWhiteSpace(this.ID))
writer.AddAttribute(HtmlTextWriterAttribute.Id, this.ID);
if(!string.IsNullOrWhiteSpace(this.CssClass))
writer.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClass);
writer.RenderBeginTag(tagName);
}
if(_headerTemplate != null)
{
using(var literal = new Literal())
{
_headerTemplate.InstantiateIn(literal);
literal.RenderControl(writer);
}
}
}
public virtual Control ToHtmlControl()
{
Literal control = null;
if(this.Dimension != Dimension.None)
this.CssClass = ":" + this.Dimension.ToString();
if(string.IsNullOrWhiteSpace(this.ImageUrl))
{
if(!string.IsNullOrWhiteSpace(this.Icon))
{
var css = Utility.ResolveCssClass(":" + this.Icon, () => this.CssClass);
control = new Literal("i", "icon" + (string.IsNullOrWhiteSpace(css) ? "" : " " + css));
}
}
else
{
control = new Literal("img", "image");
control.SetAttributeValue("src", this.ImageUrl);
if(!string.IsNullOrWhiteSpace(this.Placeholder))
control.SetAttributeValue("alt", this.Placeholder);
if(!Unit.IsEmpty(this.Width))
control.SetAttributeValue("width", this.Width.ToString());
if(!Unit.IsEmpty(this.Height))
control.SetAttributeValue("height", this.Height.ToString());
if(!string.IsNullOrWhiteSpace(this.CssClass))
control.CssClass = this.CssClass;
}
if(control == null)
return new Literal();
if(string.IsNullOrWhiteSpace(this.NavigateUrl))
return control;
var container = new Literal("a", "image");
container.SetAttributeValue("href", this.NavigateUrl);
container.Controls.Add(control);
return container;
}
public static ICollection<Control> GenerateParts(ICollection<ViewPart> parts, Func<ViewPart, Control> containerThunk)
{
if(containerThunk == null)
throw new ArgumentNullException();
if(parts == null || parts.Count < 1)
return null;
var containers = new List<Control>();
Control container = null;
foreach(var part in parts)
{
if(containers.Count == 0 || (string.IsNullOrWhiteSpace(part.Text) && string.IsNullOrWhiteSpace(part.Icon)))
{
container = containerThunk(part);
if(container != null)
containers.Add(container);
}
Literal wrapper = null;
var css = Utility.ResolveCssClass(part.Alignment == HorizontalAlignment.Right ? ":right floated" : string.Empty, () => part.CssClass);
if(string.IsNullOrWhiteSpace(part.NavigateUrl))
wrapper = new Literal("span", css);
else
{
wrapper = new Literal("a", css);
wrapper.SetAttributeValue("href", part.NavigateUrl);
}
if(!string.IsNullOrWhiteSpace(part.Style))
wrapper.SetAttributeValue("style", part.Style);
if(part.Properties.Count > 0)
{
foreach(var property in part.Properties)
{
wrapper.SetAttributeValue(property.Name, property.Value);
}
}
container.Controls.Add(wrapper);
if(part.IconAlignment == HorizontalAlignment.Left)
{
if(!string.IsNullOrWhiteSpace(part.Icon))
(wrapper ?? container).Controls.Add(new Literal("i", part.Icon + " icon"));
(wrapper ?? container).Controls.Add(new Literal()
{
Text = part.Text,
});
}
else
{
(wrapper ?? container).Controls.Add(new Literal()
{
Text = part.Text,
});
if(!string.IsNullOrWhiteSpace(part.Icon))
(wrapper ?? container).Controls.Add(new Literal("i", part.Icon + " icon"));
}
}
return containers;
}
protected override void CreateHeaderContent(Control container)
{
if(this.Image != null)
{
if(string.IsNullOrWhiteSpace(this.Image.NavigateUrl))
{
var imageCss = "ui top aligned image";
if(this.Image.Dimension != Dimension.None && !string.IsNullOrWhiteSpace(this.Image.ImageUrl))
imageCss = "ui top aligned " + this.Image.Dimension.ToString() + " image";
var literal = new Literal("div", imageCss);
container.Controls.Add(literal);
container = literal;
}
container.Controls.Add(this.Image.ToHtmlControl());
}
}
