public HtmlRender(object model)
{
if (model is FormActionViewModel)
{
Model = (FormActionViewModel)model;
}
}
public static HtmlString CreateForm(Form form, FormActionViewModel vm)
{
var sbHtml = new System.Text.StringBuilder();
AppendGridBox(sbHtml, form, vm);
return(new HtmlString(sbHtml.ToString()));
}
protected override object CreateViewModel(object context)
{
var vm = new FormActionViewModel {
Form = Form, Parameters = Parameters.CreateDictionary(context)
};
if (context is WebContext)
{
vm.ActionValue = (context as WebContext).ActionValue;
}
else
{
var value = context.GetPathValue("ActionValue");
vm.ActionValue = value == null ? 0 : Convert.ToInt32(value);
}
return(vm);
}
public static void AppendTable(this System.Text.StringBuilder sbHtml, GridBox control, FormActionViewModel vm)
{
AppendString(sbHtml, "<table");
AppendString(sbHtml, control.GetBaseAttribtes());
AppendString(sbHtml, ">");
int rowIndex = 0;
int colIndex = 0;
foreach (var row in control.Controls.GroupBy(c => c.Row).OrderBy(d => d.Key))
{
if (row.Key > rowIndex)
{
for (int i = 0; i < row.Key - rowIndex; i++)
{
AppendString(sbHtml, "<tr></tr>");
}
rowIndex = row.Key;
}
AppendString(sbHtml, "<tr>");
colIndex = 0;
foreach (var item in row.OrderBy(d => d.Column))
{
if (item.Column > colIndex)
{
for (int i = 0; i < item.Column - colIndex; i++)
{
AppendString(sbHtml, "<td></td>");
}
colIndex = item.Column;
}
AppendString(sbHtml, item.ColumnSpan > 1 ? string.Format("<td colspan=\"{0}\">", item.ColumnSpan) : "<td >");
AppendControl(sbHtml, item, vm);
AppendString(sbHtml, "</td>");
colIndex = item.ColumnSpan > 1 ? colIndex + item.ColumnSpan : colIndex + 1;
}
AppendString(sbHtml, "</tr>");
rowIndex++;
}
AppendString(sbHtml, "</table>");
}
public static void AppendPanel(this System.Text.StringBuilder sbHtml, Panel control, FormActionViewModel vm)
{
AppendString(sbHtml, "<div ");
AppendString(sbHtml, control.GetBaseAttribtes());
AppendString(sbHtml, ">");
foreach (var item in control.Controls)
{
AppendControl(sbHtml, item, vm);
}
AppendString(sbHtml, "</div>");
}
public static void AppendGridBox(this System.Text.StringBuilder sbHtml, GridBox control, FormActionViewModel vm)
{
if (control.UseTableLayout)
{
AppendTable(sbHtml, control, vm);
}
else
{
AppendPanel(sbHtml, control, vm);
}
}
public static void AppendDataView(this System.Text.StringBuilder sbHtml, DataView control, FormActionViewModel vm)
{
AppendString(sbHtml, "<form ");
AppendString(sbHtml, control.GetBaseAttribtes());
AppendString(sbHtml, " method=\"post\">");
AppendGridBox(sbHtml, control, vm);
AppendString(sbHtml, "</form>");
}
public static object GetParameterValue(System.Text.StringBuilder sbHtml, string path, FormActionViewModel vm)
{
if (string.IsNullOrEmpty(path))
{
return(null);
}
return(vm.Parameters.GetDictionaryValue(path, null));
}
public static void AppendControl(System.Text.StringBuilder sbHtml, ControlBase control, FormActionViewModel vm)
{
switch (control.GetType().Name)
{
case "Label": AppendLabel(sbHtml, (Label)control, vm); break;
case "Button": AppendButton(sbHtml, (Button)control, vm); break;
case "TextBox": AppendTextBox(sbHtml, (TextBox)control, vm); break;
case "CheckBox": AppendControl(sbHtml, (CheckBox)control, vm); break;
case "ComboBox": AppendComboBox(sbHtml, (ComboBox)control, vm); break;
case "PickBox": AppendControl(sbHtml, (PickBox)control, vm); break;
case "DateBox": AppendControl(sbHtml, (DateBox)control, vm); break;
case "ImageBox": AppendControl(sbHtml, (ImageBox)control, vm); break;
case "GridView": AppendGridView(sbHtml, (GridView)control, vm); break;
case "DataView": AppendDataView(sbHtml, (DataView)control, vm); break;
case "StackPanel": AppendPanel(sbHtml, (StackPanel)control, vm); break;
case "ToolBar": AppendPanel(sbHtml, (ToolBar)control, vm); break;
case "GridBox": AppendGridBox(sbHtml, (GridBox)control, vm); break;
default:
break;
}
}
public static void AppendGridView(System.Text.StringBuilder sbHtml, GridView control, FormActionViewModel vm)
{
AppendString(sbHtml, string.Format("<table{0} {1} >", control.GetBaseAttribtes(),
control.Options.ToFormatIfNotEmpty(" data-options=\"{0}\"")));
AppendString(sbHtml, "<thead>");
AppendString(sbHtml, "<tr>");
if (!string.IsNullOrEmpty(control.Key))
{
AppendString(sbHtml, string.Format("<th data-options=\"field:'{0}',checkbox:true\"></th>", control.Key));
}
foreach (var column in control.Columns)
{
AppendString(sbHtml, string.Format("<th data-options=\"field:'{0}',fixed:true,\">{1}</th>", column.FieldName, column.Title));
}
AppendString(sbHtml, "</tr>");
AppendString(sbHtml, "</thead>");
AppendHtmlEnd(sbHtml, "table");
}
public static void AppendComboBox(System.Text.StringBuilder sbHtml, ComboBox control, FormActionViewModel vm)
{
var value = GetParameterValue(sbHtml, control.Binding, vm);
AppendString(sbHtml, string.Format("<input{0} {1} >", control.GetBaseAttribtes(),
control.Options.ToFormatIfNotEmpty(" data-options=\"{0}\"")));
var itemsSource = GetParameterValue(sbHtml, control.ItemsSource, vm);
if (itemsSource != null)
{
if (itemsSource is string)
{
foreach (var item in (itemsSource as string).ToDictionary())
{
AppendString(sbHtml, string.Format("<option value=\"{0}\"{2}>{1}</option>", item.Key, item.Value
, (value != null && value.Equals(item.Key)) ? " selected" : ""));
}
}
else if (itemsSource is System.Collections.IEnumerable)
{
foreach (var item in (itemsSource as System.Collections.IEnumerable))
{
var pValue = item.GetPathValue(control.ValueMember);
AppendString(sbHtml, string.Format("<option value=\"{0}\"{2}>{1}</option>",
item.GetPathValue(control.ValueMember), item.GetPathValue(control.DisplayMemeber)
, (value != null && value.Equals(pValue)) ? " selected" : ""));
}
}
else
{
throw new Exception("不支持的数据源类型");
}
}
AppendString(sbHtml, "</select>");
}
public static void AppendTextBox(System.Text.StringBuilder sbHtml, TextBox control, FormActionViewModel vm)
{
var value = GetParameterValue(sbHtml, control.Binding, vm);
AppendString(sbHtml, string.Format("<input{0} {1}{2}/>", control.GetBaseAttribtes(),
control.Options.ToFormatIfNotEmpty(" data-options=\"{0}\""),
value == null ? "" : string.Format(" value=\"{0}\"", value)));
}
public static void AppendButton(System.Text.StringBuilder sbHtml, Button control, FormActionViewModel vm)
{
AppendString(sbHtml, string.Format("<a{1} href=\"#\" {2}{3}>{0}</a>",
control.Title, control.GetBaseAttribtes(),
control.Action.ToFormatIfNotEmpty(" onclick=\"{0}\""),
control.Options.ToFormatIfNotEmpty(" data-options=\"{0}\"")));
}
public static void AppendLabel(System.Text.StringBuilder sbHtml, Label control, FormActionViewModel vm)
{
AppendHtmlStart(sbHtml, control, "label");
AppendString(sbHtml, control.Title);
AppendHtmlEnd(sbHtml, "label");
}
