protected override void RenderContents(System.Web.UI.HtmlTextWriter writer)
{
if (this.Items.Count > 0)
{
bool selected = false;
bool optGroupStarted = false;
for (int i = 0; i < this.Items.Count; i++)
{
ListItem item = this.Items[i];
if (item.Enabled)
{
if (item.Value == "$$OPTGROUP$$OPTGROUP$$")
{
if (optGroupStarted)
{
writer.WriteEndTag("optgroup");
}
writer.WriteBeginTag("optgroup");
writer.WriteAttribute("label", item.Text);
writer.Write('>');
writer.WriteLine();
optGroupStarted = true;
}
else
{
writer.WriteBeginTag("option");
if (item.Selected)
{
if (selected)
{
this.VerifyMultiSelect();
}
selected = true;
writer.WriteAttribute("selected", "selected");
}
writer.WriteAttribute("value", item.Value, true);
if (item.Attributes.Count > 0)
{
item.Attributes.Render(writer);
}
if (this.Page != null)
{
this.Page.ClientScript.RegisterForEventValidation(
this.UniqueID,
item.Value);
}
writer.Write('>');
HttpUtility.HtmlEncode(item.Text, writer);
writer.WriteEndTag("option");
writer.WriteLine();
}
}
}
if (optGroupStarted)
{
writer.WriteEndTag("optgroup");
}
}
}
/// <summary>
/// Writes the Html data to the output stream.
/// </summary>
/// <param name="writer">The Html text writer to the current Mvc view context output stream.</param>
protected override void WriteHtml(System.Web.UI.HtmlTextWriter writer)
{
writer.WriteBeginTag("ul");
writer.WriteAttribute("id", Id);
writer.WriteAttribute("class", "filetree");
writer.Write(">\r\n");
writer.WriteEndTag("ul");
}
protected override void RenderEndTag(System.Web.UI.HtmlTextWriter writer)
{
// Write out the current TagName.
writer.WriteEndTag(this.TagName);
// Write out a new line.
writer.WriteLine();
}
public override void RenderContent(System.Web.UI.HtmlTextWriter writer)
{
writer.WriteFullBeginTag("div");
writer.Write(Title);
writer.WriteEndTag("div");
//write content if we have some template
if (!Content.IsEmpty)
{
Content.WriteTo(writer);
}
}
/// <summary>
/// Generates the select.
/// </summary>
/// <param name="target">The target.</param>
/// <param name="selectedValue">The selected value.</param>
/// <param name="dataSource">The data source.</param>
/// <param name="attributes">The attributes.</param>
/// <returns></returns>
protected virtual string GenerateSelect(string target, object selectedValue, IEnumerable dataSource, IDictionary attributes)
{
var id = CreateHtmlId(target);
ApplyValidation(InputElementType.Select, target, ref attributes);
var sb = new StringBuilder();
var sbWriter = new StringWriter(sb);
var writer = new HtmlTextWriter(sbWriter);
string firstOption = null;
string firstOptionValue = null;
var pascalCaseToWord = false;
var name = target;
if (attributes != null)
{
firstOption = CommonUtils.ObtainEntryAndRemove(attributes, "firstoption");
firstOptionValue = CommonUtils.ObtainEntryAndRemove(attributes, "firstoptionvalue");
pascalCaseToWord = Convert.ToBoolean(CommonUtils.ObtainEntryAndRemove(attributes, "pascalCaseToWord"));
if (attributes.Contains("name"))
{
name = (String)attributes["name"];
attributes.Remove("name");
}
if (attributes.Contains("id"))
{
id = (String)attributes["id"];
attributes.Remove("id");
}
}
var state = SetOperation.IterateOnDataSource(selectedValue, dataSource, attributes);
writer.WriteBeginTag("select");
writer.WriteAttribute("id", id);
writer.WriteAttribute("name", name);
writer.Write(" ");
writer.Write(GetAttributes(attributes));
writer.Write(HtmlTextWriter.TagRightChar);
writer.WriteLine();
if (firstOption != null)
{
writer.WriteBeginTag("option");
writer.WriteAttribute("value", (firstOptionValue == null) ? "0" : SafeHtmlEncode(firstOptionValue));
writer.Write(HtmlTextWriter.TagRightChar);
writer.Write(SafeHtmlEncode(firstOption));
writer.WriteEndTag("option");
writer.WriteLine();
}
foreach (SetItem item in state)
{
writer.WriteBeginTag("option");
if (item.IsSelected)
{
writer.Write(" selected=\"selected\"");
}
writer.WriteAttribute("value", SafeHtmlEncode(item.Value));
writer.Write(HtmlTextWriter.TagRightChar);
if (pascalCaseToWord)
{
writer.Write(SafeHtmlEncode(TextHelper.PascalCaseToWord(item.Text)));
}
else
{
writer.Write(SafeHtmlEncode(item.Text));
}
writer.WriteEndTag("option");
writer.WriteLine();
}
writer.WriteEndTag("select");
return sbWriter.ToString();
}
/// <summary>
/// Generates a label element.
/// </summary>
/// <param name="target">The object to get the value from and to be based on to create the element name.</param>
/// <param name="label">Legend</param>
/// <param name="attributes">Attributes for the FormHelper method and for the html element it generates</param>
/// <returns>The generated form element</returns>
public virtual string LabelFor(string target, string label, IDictionary attributes)
{
target = RewriteTargetIfWithinObjectScope(target);
var id = CreateHtmlId(attributes, target);
var sb = new StringBuilder();
var sbWriter = new StringWriter(sb);
var writer = new HtmlTextWriter(sbWriter);
writer.WriteBeginTag("label");
writer.WriteAttribute("for", id);
var strAttributes = GetAttributes(attributes);
if (strAttributes != String.Empty)
{
writer.Write(HtmlTextWriter.SpaceChar);
}
writer.Write(strAttributes);
writer.Write(HtmlTextWriter.TagRightChar);
writer.Write(label);
writer.WriteEndTag("label");
return sbWriter.ToString();
}
protected override void RenderContents(System.Web.UI.HtmlTextWriter writer)
{
// The current control being "adaptered" is available within context from the Control property
DropDownList dropDownList = (DropDownList)Control;
ListItemCollection items = dropDownList.Items;
// Retrieve Optgrouping using LinQ
var groups = (from p in items.OfType <ListItem>()
group p by p.Attributes["Group"] into g
select new { Label = g.Key, Items = g.ToList <ListItem>() });
foreach (var group in groups)
{
if (!String.IsNullOrEmpty(group.Label))
{
writer.WriteBeginTag("optgroup");
writer.WriteAttribute("label", group.Label);
writer.Write(">");
}
int count = group.Items.Count();
if (count > 0)
{
bool flag = false;
for (int i = 0; i < count; i++)
{
ListItem item = group.Items[i];
writer.WriteBeginTag("option");
if (item.Selected)
{
if (flag)
{
throw new HttpException("Multiple selected items not allowed");
}
flag = true;
writer.WriteAttribute("selected", "selected");
}
if (!item.Enabled)
{
writer.WriteAttribute("disabled", "true");
}
writer.WriteAttribute("value", item.Value, true);
if (this.Page != null)
{
this.Page.ClientScript.RegisterForEventValidation(dropDownList.UniqueID, item.Value);
}
writer.Write('>');
HttpUtility.HtmlEncode(item.Text, writer);
writer.WriteEndTag("option");
writer.WriteLine();
}
}
if (!String.IsNullOrEmpty(group.Label))
{
writer.WriteEndTag("optgroup");
}
}
}
protected override void RenderContents(System.Web.UI.HtmlTextWriter writer)
{
ListItemCollection items = this.Items;
int count = items.Count;
if (count > 0)
{
bool flag = false;
string prevOptGroup = null;
for (int i = 0; i < count; i++)
{
string tag = OptionTag;
string optgroupLabel = null;
ListItem item = items[i];
if (item.Enabled)
{
if (item.Attributes.Count > 0 && item.Attributes[OptionGroupTag] != null)
{
optgroupLabel = item.Attributes[OptionGroupTag];
if (prevOptGroup != optgroupLabel)
{
if (prevOptGroup != null)
{
writer.WriteEndTag(OptionGroupTag);
}
writer.WriteBeginTag(OptionGroupTag);
if (!string.IsNullOrEmpty(optgroupLabel))
{
writer.WriteAttribute("label", optgroupLabel);
}
writer.Write('>');
}
item.Attributes.Remove(OptionGroupTag);
prevOptGroup = optgroupLabel;
}
else
{
if (prevOptGroup != null)
{
writer.WriteEndTag(OptionGroupTag);
}
prevOptGroup = null;
}
writer.WriteBeginTag(tag);
if (item.Selected)
{
if (flag)
{
this.VerifyMultiSelect();
}
flag = true;
writer.WriteAttribute("selected", "selected");
}
writer.WriteAttribute("value", item.Value, true);
if (item.Attributes.Count > 0)
{
item.Attributes.Render(writer);
}
if (optgroupLabel != null)
{
item.Attributes.Add(OptionGroupTag, optgroupLabel);
}
if (this.Page != null)
{
this.Page.ClientScript.RegisterForEventValidation(this.UniqueID, item.Value);
}
writer.Write('>');
HttpUtility.HtmlEncode(item.Text, writer);
writer.WriteEndTag(tag);
writer.WriteLine();
if (i == count - 1)
{
if (prevOptGroup != null)
{
writer.WriteEndTag(OptionGroupTag);
}
}
}
}
}
}
