Hi,

Could you please share your custom element code?

Best Regards,

Tuan Do

Nothing special.

[ContentType(DisplayName = "Custom Text Field", GUID = "35ab53fc-e0b9-4866-8614-ecc6f62f698b", Description = "", GroupName = "Forms")]
public class CustomTextField : TextboxElementBlock
{

}

But currently have three custom elements and none of them work.  Another one extends SelectionElementBlock and the last is a container that extends ElementBlockBase to allow use to have multiple columns in the form.  None of them work.  

Maybe set default page name on them?

When you are dragging and dropping it creates a block in the background with the default name but EPiSErver has validation that checks if the block has the default name and doesn't save it if it still has the default name.  The default form elements somehow skip this validation but the custom elements that I have done hit this validaiton for some reason.

Hi,

Please try following way:

• In the embedded language file (.xml file), create a new customtextfield element under languages/language/contenttypes
• In this case, it should be:

<languages>
    <language name="English" id="en">
        <contenttypes>
            <customtextfield>
                <name>Custom Text Field</name>
                <description></description>
                <newitemdefaultname>New custom text field</newitemdefaultname>
            </customtextfield>
        </contenttypes>
    </language>
</languages>

Best Regards,

Tuan Do

Yeah that works thanks.

I file a bug to improve this later. Thank you.

Hi,

We experience this same issue when using the standard Forms element delivered in the nuget Forms package i.e. can't drag and drop forms elements. It works fine when using "browse". No javascript errors. 

When first drag+drop a couple of elements, then adding by "browse" the previous drag+drop elements suddenly appears.

I think it's a lag in CMS EditView UI. FormElements are ordinary Block. Nothing special with drag n drop them to the ContentArea.

I too have the same issue. I can´t always drag and drop custom form elements. Sometimes it works, I haven´t found any reason behind it. Browse link in content area works. Adding a custom field in the XML like above solution haven´t made any difference, maybe that solution was for an earlier version of Forms? I run 2.0.0.2.

On another "simpler", yet still annoying, note: I can´t set custom images for the custom form element that shows when clicking the browse link like you can with ordinary blocks and pages through adding the attribute ImageUrl on the block/page type:

[ContentType(DisplayName = "Country selection", GUID = "5b7bd272-2b00-46ca-a4f8-26865c2fc2ca", GroupName = "Custom Elements", Description = "A custom element for country selection")]
[ImageUrl(Constants.FormElementsTypeImageBasePath + "SelectionElementBlock.png")]
public class CountrySelectionElementBlock : ElementBlockBase
{
}

The image is a copy of the one used for the built-in selection form element and is found here:

\modules\_protected\EPiServer.Forms\2.0.0.2\ClientResources\epi-forms\themes\sleek\images\contenttypes

I copied the image I wanted to a folder in my solution which is the path in the ImageUrl attribute, but the image for my custom form element is still the ugly white default one.

EDIT: From nothing at all happening when dragging and dropping is not working I started getting this error:

ContentReference: Input string was not in a correct format.

I suspect that it might have something to do with the stuff explained earlier in this thread by Paul:
"When you are dragging and dropping it creates a block in the background with the default name but EPiServer has validation that checks if the block has the default name and doesn't save it if it still has the default name.  The default form elements somehow skip this validation but the custom elements that I have done hit this validaiton for some reason.". However adding the custom element to the XML file haven´t worked. I added:

<countryselectionelementblock>
    <name>Country selection element block</name>
    <description>A custom element for country selection</description>
    <newitemdefaultname>New country selection</newitemdefaultname>
</countryselectionelementblock>

My custom form element is called CountrySelectionElementBlock, here is the block code:

[ContentType(DisplayName = "Country selection", GUID = "5b7bd272-2b00-46ca-a4f8-26865c2fc2ca", GroupName = "Custom Elements", Description = "A custom element for country selection")]
[ImageUrl(Constants.FormElementsTypeImageBasePath + "SelectionElementBlock.png")]
public class CountrySelectionElementBlock : ElementBlockBase
{
	
}

Shouldn´t my custom element in the XML file be <countryselectionelementblock> then?

Any thoughts?

BR, Petra