Hello Rolf,
As for the custom webcontrol, based on the code you provided, I found there
are two things we may take care here:
1) If you want to persist Control's properties inside Control's tag(inner
property), you need to set the "ParseChildrenA ttribute" as "true", this
indicate that the inner content of the control tag will be parsed as
control properties.
#ParseChildrenA ttribute Class
http://msdn2.microsoft.com/en-us/lib...ildrenattribut
e.aspx
2) The "PersistChildre nAttributeA" is used together with the
"parseChildrenA ttribute", from the MSDN document remark below:
=============== ====
The PersistChildren Attribute is used in combination with the
ParseChildrenAt tribute to determine how nested content of a control is
interpreted. If PersistChildren Attribute is true and ParseChildrenAt tribute
is false, the nested content contained within an ASP.NET server control is
persisted as controls.If PersistChildren Attribute is false and
ParseChildrenAt tribute is true, the nested content is persisted as
properties of the server control.
=============
You can find that if you want to persist property into control's inner
content, you should set "PersistChildAt tribute" to false and
"ParseChildrenA ttribute" to true. e.g.
[ParseChildren(t rue,"Descriptio n")]
[PersistChildren (false)]
Here is a complete test control for your reference:
=============== =============== ====
[DefaultProperty ("Descriptio n")]
[ToolboxData("<{ 0}:PropertyCont rol
runat=server></{0}:PropertyCon trol>")]
[ParseChildren(t rue,"Descriptio n")]
public class PropertyControl : WebControl
{
[Bindable(true)]
[Category("Appea rance")]
[DefaultValue("" )]
[Localizable(tru e)]
public string Text
{
get
{
String s = (String)ViewSta te["Text"];
return ((s == null) ? String.Empty : s);
}
set
{
ViewState["Text"] = value;
}
}
[Bindable(true)]
[Category("Appea rance")]
[DefaultValue("d efault description")]
[Localizable(tru e)]
[PersistenceMode (PersistenceMod e.InnerDefaultP roperty)]
public string Description
{
get
{
String s = (String)ViewSta te["Descriptio n"];
return ((s == null) ? String.Empty : s);
}
set
{
ViewState["Descriptio n"] = value;
}
}
protected override void RenderContents( HtmlTextWriter output)
{
output.Write("< br/><hr/>");
output.Write("< br/>Text: " + Text);
output.Write("< br/>Description: " + Description);
output.Write("< br/><hr/>");
}
}
=============== =============== ===
Hope this helps.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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