Ticket T134695

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ASPxImageSlider - How to set ASPxImageSlider.ItemTextTemplate at runtime

AB AB

Adam Bruce Adam Bruce

created 11 years ago (modified 11 years ago)

He there,

What I'm looking to do is add content to a TextTemplate to the ImageSliderItem object of an ASPxImageSlider control in codebehind at runtime. I want to be able to add an image url to the ImageSliderItems and a header, a line of text and a hyperlink to each of my image panes' TextTemplate objects at runtime in the control.

I can't seem to find any material that deals with this and I have used the demo center example to setup my slider with static images, text and links for the moment.

I know that the TextTemplate property of the ImageSliderItem object impliments the ITemplate interface but what I don't know is how to arrange my data and set the properties source.

Can you please help.

Thanks.

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Answers approved by DevExpress Support

DevExpress Support Team DevExpress Support Team

created 11 years ago (modified 11 years ago)

Hi Adam,

I've created a sample project that demonstrates how to use ItemTextTemplate in ASPxImageSlider. Try it on your side and let me know if it meets your requirements.

T134695.zip

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AB AB

Private Adam Bruce Private Adam Bruce 11 years ago

Hi Paul,
Your sample project doesn't demonstrate how to use anything. ItemTextTemplate isn't a type that can be instantiated like that, it's a public virtual ITemplate interface in the ASPxImageSlider class.
What I need to know is how to construct a valid template at runtime in the codebehind that the ASPxImageSlider will accept when I try to assign it to ASPxImageSlider1.ItemTextTemplate so I can swap out each slides' content on a post-back.
The template needs to be able to format its content to resemble what my slider is set to manually in the markup which is this:
<TextTemplate>
<h3 class='isdemoH3'>Spares</h3>
<p>Field Service is available seven days per week. <a tabindex="-1" href='/parts-and-service/'>Details »</a></p>
</TextTemplate>
If that means creating a class that inherits form ITemplate and has nothing but a string property that I use a stringbuilder to write the markup at runtime then that's fine, but I'd like to know if there's a better way it can be done.

Private DevExpress Support Team Private DevExpress Support Team 11 years ago

Hi Adam,

If you need to customize a template at runtime, you are required to create a class that implements the ITemplate interface and this is the only way to accomplish this task.
Let me know if you require any further assistance.

Best regards,
Paul

AB AB

Private Adam Bruce Private Adam Bruce 11 years ago

Yes I know that, I said as much in my last comment. What I've been asking is how do I structure the class so that the ASPxImageSlider control can render the properties like the example I gave in my previous comment.
I can't find any documentation outlining what the slider control expects any class's structure to be that implements the Itemplate interface.

Private DevExpress Support Team Private DevExpress Support Team 11 years ago

Hi Adam,

A custom template class should implement the ITemplate interface and there are no other requirements for a class structure. If you have trouble implementing a specific layout, please clarify what layout you're trying to achieve and I will help you with it.

Best regards,
Paul

AB AB

Private Adam Bruce Private Adam Bruce 11 years ago

Hi Paul,
As I've said I don't know how to structure the class to get the layout I want and that is what I need help with. As I said previously I would like to build a template that would display what I have already built in the markup, which is this:
<TextTemplate>
<h3 class='isdemoH3'>Spares</h3>
<p>Field Service is available seven days per week. <a tabindex="-1" href='/parts-and-service/'>Details »</a></p>
</TextTemplate>
Could you please help me design a class that would structure this.

Private DevExpress Support Team Private DevExpress Support Team 11 years ago

Hi Adam,

I've implemented a class that builds the required markup. Try it and let me know if it meets your requirements.

T134695.zip

AB AB

Private Adam Bruce Private Adam Bruce 11 years ago

Hi Paul,
Yes using the literal works fine, I can just alter the class to accept a string in the constructor to make the content dynamic.

Private DevExpress Support Team Private DevExpress Support Team 11 years ago

Hi,

I'm happy to hear that my assistance was helpful. Feel free to contact us if you have further questions.

Created: July 29, 2014 10:05 AM

Modified: August 1, 2014 12:05 PM

Platform: ASP.NET Web Forms

Build: 14.1.3

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ASPxImageSlider - How to set ASPxImageSlider.ItemTextTemplate at runtime

Answers approved by DevExpress Support

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