/// <summary>
///
/// </summary>
/// <param name="writer"></param>
/// <param name="multiListItem"></param>
/// <param name="name"></param>
/// <param name="jsDbClick"></param>
protected void RenderOptionsContents(HtmlTextWriter writer, MultiListBoxItem multiListItem, string name, string jsDbClick)
{
ListItemCollection items = multiListItem.Items;
writer.AddAttribute("name", this.ClientID + "_" + name);
writer.AddAttribute("id", this.ClientID + "_" + name);
writer.AddAttribute("size", this.Rows.ToString());
writer.AddAttribute("onDblClick", jsDbClick);
if (SelectionMode == ListSelectionMode.Multiple)
writer.AddAttribute(HtmlTextWriterAttribute.Multiple, "multiple");
//输出CSS定义
if (multiListItem.StyleSheet != null)
{
StringBuilder sb = new StringBuilder();
string sheetValue = multiListItem.StyleSheet.Width;
if (sheetValue != null && sheetValue != "")
sb.AppendFormat("width:{0};", sheetValue);
sheetValue = multiListItem.StyleSheet.Height;
if (sheetValue != null && sheetValue != "")
sb.AppendFormat("height:{0};", sheetValue);
writer.AddAttribute("style", sb.ToString());
}
writer.RenderBeginTag(HtmlTextWriterTag.Select);
int count = items.Count;
if (count > 0)
{
for (int i = 0; i < count; i++)
{
ListItem item = items[i];
writer.AddAttribute("value", item.Value, true);
writer.RenderBeginTag(HtmlTextWriterTag.Option);
writer.Write(item.Text);
writer.RenderEndTag();
}
}
writer.RenderEndTag();
}
/// <summary>
/// 将DataSource转换成指定的Items
/// </summary>
/// <param name="listItem"></param>
protected void PerformanceData(MultiListBoxItem listItem)
{
object dataSource = listItem.DataSource;
if (dataSource != null)
{
bool flag_display = false;
bool flag_format = false;
string propName = this.DataTextField;
string dataValueField = this.DataValueField;
string format = this.DataTextFormatString;
ICollection data = dataSource as ICollection;
if (data != null)
{
listItem.Items.Capacity = listItem.Items.Count + data.Count;
}
if (propName.Length != 0 || dataValueField.Length != 0)
flag_display = true;
if (this.DataTextFormatString.Length != 0)
flag_format = true;
foreach (object obj in data)
{
ListItem item = new ListItem();
//自定义显示TextField,ValueField
if (flag_display)
{
if (propName.Length > 0)
{
item.Text = DataBinder.GetPropertyValue(obj, propName).ToString();
}
if (dataValueField.Length > 0)
{
item.Value = DataBinder.GetPropertyValue(obj, dataValueField).ToString();
}
}
else
{
if (flag_format)
{
item.Text = string.Format(CultureInfo.CurrentCulture, format, new object[] { obj });
}
else
{
item.Text = obj.ToString();
}
}
listItem.Items.Add(item);
}
}
}