public virtual void RenderPostBackHeader(HtmlMobileTextWriter writer, Form form)
{
bool postBack = form.Action.Length == 0;
RenderPageState(writer);
writer.WriteHiddenField(EventSourceKey, postBack ? "" : _postedFromOtherFile);
writer.WriteHiddenField(EventArgumentKey, "");
RenderHiddenVariables(writer);
writer.Write("<script language=javascript><!--\r\n");
writer.Write("function __doPostBack(target, argument){\r\n");
writer.Write(" var theform = document.");
writer.Write(form.ClientID);
writer.Write("\r\n");
if (form.Action.Length > 0)
{
writer.Write(" theform.action = \"\"\r\n");
}
writer.Write(" theform.");
writer.Write(EventSourceKey);
writer.Write(".value = target\r\n");
writer.Write(" theform.");
writer.Write(EventArgumentKey);
writer.Write(".value = argument\r\n");
writer.Write(" theform.submit()\r\n");
writer.Write("}\r\n");
writer.Write("// -->\r\n");
writer.Write("</script>\r\n");
}
internal void RenderPageState(HtmlMobileTextWriter writer)
{
String viewState = Page.ClientViewState;
if (viewState != null)
{
writer.WriteHiddenField(MobilePage.ViewStateID, viewState);
}
}
/// <include file='doc\ChtmlPageAdapter.uex' path='docs/doc[@for="ChtmlPageAdapter.RenderPostBackHeader"]/*' />
public override void RenderPostBackHeader(HtmlMobileTextWriter writer, Form form)
{
bool postBack = form.Action.Length == 0;
RenderPageState(writer);
if (!postBack)
{
writer.WriteHiddenField(EventSourceKey, _postedFromOtherFile);
}
else if (Page.ClientViewState == null)
{
// The empty event source variable is used to identify a
// postback request
writer.WriteHiddenField(EventSourceKey, String.Empty);
}
RenderHiddenVariables(writer);
}
/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.RenderAsHiddenInputField"]/*' />
protected override void RenderAsHiddenInputField(HtmlMobileTextWriter writer)
{
// Optimization - if viewstate is enabled for this control, and the
// postback returns to this page, we just let it do the trick.
if (Control.Form.Action.Length > 0 || (!IsViewStateEnabled() && Control.Text != _staticValue))
{
writer.WriteHiddenField(Control.UniqueID, Control.Text);
}
}
private void RenderQueryParametersAsHiddenFields(
HtmlMobileTextWriter writer)
{
String action = Page.ActiveForm.Action;
int indexOfQueryStringText = action.IndexOf('?');
if (indexOfQueryStringText != -1 ||
Page.QueryStringText != String.Empty ||
Control.Method == FormMethod.Get)
{
// We use __ufps as the delimiter in the collection.
writer.WriteHiddenField(
Constants.UniqueFilePathSuffixVariable.Substring(
0, Constants.UniqueFilePathSuffixVariable.Length - 1),
String.Empty);
String queryString;
// If there is some query string on the Action attribute,
// it takes the precedence.
if (indexOfQueryStringText != -1)
{
queryString = action.Substring(indexOfQueryStringText + 1);
}
else
{
queryString = Page.QueryStringText;
}
if (queryString != null && queryString.Length != 0)
{
NameValueCollection collection =
ParseQueryStringIntoCollection(queryString);
for (int i = 0; i < collection.Count; i++)
{
writer.WriteHiddenField(collection.GetKey(i),
collection.Get(i));
}
}
}
}
protected void RenderHiddenVariables(HtmlMobileTextWriter writer)
{
if (Page.HasHiddenVariables())
{
String hiddenVariablePrefix = MobilePage.HiddenVariablePrefix;
foreach (DictionaryEntry entry in Page.HiddenVariables)
{
if (entry.Value != null)
{
writer.WriteHiddenField(hiddenVariablePrefix + (String)entry.Key,
(String)entry.Value);
}
}
}
}
/// <include file='doc\HtmlSelectionListAdapter.uex' path='docs/doc[@for="HtmlSelectionListAdapter.RenderAsHiddenInputField"]/*' />
protected override void RenderAsHiddenInputField(HtmlMobileTextWriter writer)
{
// Optimization - if viewstate is enabled for this control, and the
// postback returns to this page, we just let it do the trick.
// One catch though - if the control is multiselect, it always
// interprets return values, so we do need to write out.
if (Control.IsMultiSelect || Control.Form.Action.Length > 0 || !IsViewStateEnabled())
{
String uniqueID = Control.UniqueID;
MobileListItemCollection items = Control.Items;
for (int i = 0; i < items.Count; i++)
{
if (items[i].Selected)
{
writer.WriteHiddenField(uniqueID, i.ToString(CultureInfo.InvariantCulture));
}
}
}
}
/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.RenderAsHiddenInputField"]/*' />
protected override void RenderAsHiddenInputField(HtmlMobileTextWriter writer)
{
// Optimization - if viewstate is enabled for this control, and the
// postback returns to this page, we just let it do the trick.
if (Control.Form.Action.Length > 0 || (!IsViewStateEnabled() && Control.Text != _staticValue))
{
writer.WriteHiddenField(Control.UniqueID, Control.Text);
}
}
/// <include file='doc\HtmlSelectionListAdapter.uex' path='docs/doc[@for="HtmlSelectionListAdapter.RenderAsHiddenInputField"]/*' />
protected override void RenderAsHiddenInputField(HtmlMobileTextWriter writer)
{
// Optimization - if viewstate is enabled for this control, and the
// postback returns to this page, we just let it do the trick.
// One catch though - if the control is multiselect, it always
// interprets return values, so we do need to write out.
if (Control.IsMultiSelect || Control.Form.Action.Length > 0 || !IsViewStateEnabled())
{
String uniqueID = Control.UniqueID;
MobileListItemCollection items = Control.Items;
for (int i = 0; i < items.Count; i++)
{
if (items[i].Selected)
{
writer.WriteHiddenField(uniqueID, i.ToString(CultureInfo.InvariantCulture));
}
}
}
}