Asp.net User Control or Custom control Property doesnt accept inlineasp.net constract <%= %> is there a workaround?

[AleXmanFree]

Hi , I have got problem with passing my inline based value to y user
control (or custom control, no matter which one I use, I have tried
both to make sure it doesnt matter) .
So say I have property called ImagePath and i want to pass my value
through asp.net specific inline cunstruction:
<uc:MyControl runat=server id="someId" ImagePath="<%=
Request.Applica tionPath %>/App_Themes/<%= Page.Theme %>/Images/
ball_.png" />,

problem that in my property I get value exactly word for word:<%=
Request.Applica tionPath %>/App_Themes/<%= Page.Theme %>/Images/
ball_.png , but i Should get it like:
/WebSiteRoot/App_Themes/Green/Images/ball_.png.

For example if I use simple img html tag i works:
<img src="<%= Request.Applica tionPath %>/App_Themes/<%= Page.Theme %>/
Images/ball_.png" />
But if i add runat=server it brokes and i dont see any image coz the
path of image already messy string with <%= and so on.

I tried a lot of attributes to my ImagePath that found in web posts to
let it work (i.e.: [Bindable(true)],[Category("Data" )],
[Browsable(true)] and many more) but no result.



Please let me know if you can resolve this interesting trick somehow?

[HillBilly]

Re: Asp.net User Control or Custom control Property doesnt accept inline asp.net constract &lt;%= %&gt; is there a workaround?

I was taught to troubleshoot using isolation: test one thing at a time.

So isolate your expressions you are attempting to bind to the page. I also
bring to your attention the use of the root path operator (~) so useful to
resolve paths. I would then isolate the use of Request.Applica tionPath and
get that part of your path correct.

Some parts of your path would look like "~/Images/ball_.png" for example and
I don't even think App_Theme is known to anything but the compiler but I
could be wrong about that as I don't think we can bind the Theme to the page
using an expression which may be why using Server controls vs HTML controls
appears to produce results.

"AleXmanFre e" <alexmanfree@gm ail.comwrote in message
news:74820c4f-d2d6-4742-8d0d-15eb1fd5dea3@z7 2g2000hsb.googl egroups.com...

Hi , I have got problem with passing my inline based value to y user
control (or custom control, no matter which one I use, I have tried
both to make sure it doesnt matter) .
So say I have property called ImagePath and i want to pass my value
through asp.net specific inline cunstruction:
<uc:MyControl runat=server id="someId" ImagePath="<%=
Request.Applica tionPath %>/App_Themes/<%= Page.Theme %>/Images/
ball_.png" />,
>
problem that in my property I get value exactly word for word:<%=
Request.Applica tionPath %>/App_Themes/<%= Page.Theme %>/Images/
ball_.png , but i Should get it like:
/WebSiteRoot/App_Themes/Green/Images/ball_.png.
>
For example if I use simple img html tag i works:
<img src="<%= Request.Applica tionPath %>/App_Themes/<%= Page.Theme %>/
Images/ball_.png" />
But if i add runat=server it brokes and i dont see any image coz the
path of image already messy string with <%= and so on.
>
I tried a lot of attributes to my ImagePath that found in web posts to
let it work (i.e.: [Bindable(true)],[Category("Data" )],
[Browsable(true)] and many more) but no result.
>
>
>
Please let me know if you can resolve this interesting trick somehow?

[AleXmanFree]

Re: Asp.net User Control or Custom control Property doesnt acceptinline asp.net constract &lt;%= %&gt; is there a workaround?

Finally I found a good solution for this case.
Here is very good post of Dave Reed:

http://weblogs.asp.net/infinitiesloop/archive/2006/08/09/The-CodeExpressionBuilder.aspx

The short steps to achieve similar result are:

1) Create a class which inherits ExpressionBuild er:

using System;
using System.Collecti ons.Generic;
using System.Text;
using System.CodeDom;
using System.Web.Comp ilation;
using System.Web.UI;

namespace Helper.Configur ators
{
[ExpressionPrefi x("InlineCode ")]
public class CodeExpressionB uilder : ExpressionBuild er
{
public override CodeExpression GetCodeExpressi on(BoundPropert yEntry
entry, object parsedData, ExpressionBuild erContext context)
{
return new CodeSnippetExpr ession(entry.Ex pression);
}
}
}

2) register the newly created class in Web.Config:

<expressionBuil ders>
<add expressionPrefi x="InlineCode "
type="Helper.Co nfigurators.Cod eExpressionBuil der"/>
</expressionBuild ers>

(it must be putted inside <configuration> )

3) and us it:

CategoryImage=' <%$ InlineCode: Request.Applica tionPath+ "/App_Themes/"
+Page.Theme+ "/Images/ball_.png" %>'


Enjoy.

[Hillbilly]

Re: Asp.net User Control or Custom control Property doesnt accept inline asp.net constract &lt;%= %&gt; is there a workaround?

I really appreciate your commitment to come back to put this news article
into perspective. I needed more insight into the use of the
ExpressionBuild er class myself. Thanks again...

"AleXmanFre e" <alexmanfree@gm ail.comwrote in message
news:af121179-4f3f-48ec-8ba2-2455b3c12cd7@i7 6g2000hsf.googl egroups.com...

Finally I found a good solution for this case.
Here is very good post of Dave Reed:

http://weblogs.asp.net/infinitiesloop/archive/2006/08/09/The-CodeExpressionBuilder.aspx

>
>
The short steps to achieve similar result are:
>
1) Create a class which inherits ExpressionBuild er:
>
using System;
using System.Collecti ons.Generic;
using System.Text;
using System.CodeDom;
using System.Web.Comp ilation;
using System.Web.UI;
>
namespace Helper.Configur ators
{
[ExpressionPrefi x("InlineCode ")]
public class CodeExpressionB uilder : ExpressionBuild er
{
public override CodeExpression GetCodeExpressi on(BoundPropert yEntry
entry, object parsedData, ExpressionBuild erContext context)
{
return new CodeSnippetExpr ession(entry.Ex pression);
}
}
}
>
2) register the newly created class in Web.Config:
>
<expressionBuil ders>
<add expressionPrefi x="InlineCode "
type="Helper.Co nfigurators.Cod eExpressionBuil der"/>
</expressionBuild ers>
>
(it must be putted inside <configuration> )
>
3) and us it:
>
CategoryImage=' <%$ InlineCode: Request.Applica tionPath+ "/App_Themes/"
+Page.Theme+ "/Images/ball_.png" %>'
>
>
Enjoy.