Re: Property Window and 3rd party webcontrols
- From: "Bryan Phillips" <bphillips@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 16 Mar 2007 21:09:08 +0000
Visual Studio uses the control's Designer attribute to determine the class to use in order to get the html to save for the control and its properties. Download Reflector (http://www.aisto.com/roeder) and look at the TextBox class and the ControlDesigner class (System.Web.UI.Design namespace in the System.Design dll). It will give you a good idea of what is possible and also the best practice since you will be looking at the source code for the .Net Framework itself.
--
Bryan Phillips
MCSD, MCDBA, MCSE
Blog: http://bphillips76.spaces.live.com
"Mutley" <John.Nugent@xxxxxxxxxxxxxxxxx> wrote in message news:1173951469.846364.144910@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:
On Mar 14, 7:15 pm, "Bryan Phillips"
<bphill...@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> The Font class has the Editor attribute defined with a UITypeEditor as
> the parameter which allows it to be edited differently in a
> PropertyGrid. Editing values in the PropertyGrid is not related to the
> XML generated because the PropertyGrid modifies a design-time version of
> your control and when you change a control's property, the HostDesigner
> for the Page class serializes your property modifications to the XML
> that you see. The same occurs with WindowsForms controls except that
> the properties are persisted using CodeDom instead of XML.
>
> --
> Bryan Phillips
> MCSD, MCDBA, MCSE
> Blog: http://bphillips76.spaces.live.com
>
> "Mutley" <John.Nug...@xxxxxxxxxxxxxxxxx> wrote in message
>
> news:1173891249.188599.33480@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:
>
>
>
> > Hi,
> > I am adding custom controls to Visual studio which can then be
> > dragged onto a page and the controls properties appear in the property
> > grid window. The Font property of one of my controls appears in the
> > property window with a + sign beside Font which can then be expanded
> > to show the various sub-properties of Font. When the form is saved the
> > html for the page shows the following <asp:textbox id =... Font-
> > Bold="True" Font-Italic="True">.
> > I have a 3rd party control (a charting tool) that when dropped into a
> > page has a property called Chart that contains multiple properties for
> > the chart. When I look at the saved html I see the following
>
> > <cc1:GSNetWebChart ... runat="server">
> > <Chart ChartType="Line2D" Size="600, 400">
> > <ChartTitle IsVisible="True" Text="Chart Title" >
> > <Border FadedEdgeColor="White"
> > RaisedLoweredColor="Gray"></Border>
> > <Background GradientEndColor="MediumBlue" Color="White"></Background>
>
> > My question is what setting\attribute relating to a property causes
> > the Font properties to be saved as name-value pairs in the textbox
> > tag
> > whereas the chart property has its own tags in the html (I did notice
> > that the chart property value is a large piece of XML whereas the Font
> > property value was a Font object) .
>
> > Thanks in advance for any help
> > John- Hide quoted text -
>
> - Show quoted text -
Thanks for your help Bryan,
I can't tell from your answer though if there is a property attribute
or setting that is used by Visual Studio to actually determine the way
it creates the HTML to represent the property value.
For example the Font property is represented by a html attribute that
is associated to the control tag whereas the Chart property is
represented in place as the value for the control tag. It appears that
Visual Studio detects a difference between these 2 properties and my
question is what is that difference?
Thanks
.
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