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In SP on-premise, we could add a content editor web part and add an image in the new form.
I need to do the same thing with SharePoint online, and I am unsure how to do it.
So basically, what I need to do is every time users want to create a new list (form), they should see an image on top of the page.
In SharePoint Online modern experience, you can add an image to the list form by applying JSON formatting to the Header section like this:
{
"elmType": "img",
"style": {
"width": "100%",
"max-width": "100%",
"float": "left"
},
"attributes": {
"src": "=@currentWeb + '/SiteAssets/Microsoft products banner.jpg'"
}
}
Output:
Documentation:
Examples:
The following examples may assist in understanding how the formatting behaves in the header.
Example 01
Without adding display: block to the parent, the parent will have flex applied, children will display inline.
{
"elmType": "div",
"children":
[
{
"elmType": "div",
"txtContent": "Line 01.\n\n"
},
{
"elmType": "div",
"txtContent": "Line 02.\n\n"
},
{
"elmType": "img",
"attributes":
{
"src": "https://picsum.photos/600/300"
}
}
]
}
will produce:
Example 02
When adding display: block to the parent, the parent will not have flex applied, children will display as blocks.
{
"elmType": "div",
"style":
{
"display": "block"
},
"children":
[
{
"elmType": "div",
"txtContent": "Line 01.\n\n"
},
{
"elmType": "div",
"txtContent": "Line 02.\n\n"
},
{
"elmType": "img",
"attributes":
{
"src": "https://picsum.photos/600/300"
}
}
]
}
will produce:
Example 03
If you want to modify the sample header that is provided by Microsoft so that is has some text and an image below it, you could try something like this:
{
"elmType": "div",
"style":
{
"display": "block",
"width": "99%",
"border-top-width": "0px",
"border-bottom-width": "1px",
"border-left-width": "0px",
"border-right-width": "0px",
"border-style": "solid",
"margin-bottom": "16px",
"padding-bottom": "20px"
},
"children":
[
{
"elmType": "div",
"attributes":
{
"class": "ms-borderColor-neutralTertiary"
},
"style":
{
"display": "flex"
},
"children":
[
{
"elmType": "div",
"style":
{
"display": "flex",
"box-sizing": "border-box",
"align-items": "center"
},
"children":
[
{
"elmType": "div",
"attributes":
{
"iconName": "EditContact",
"class": "ms-fontSize-42 ms-fontWeight-regular ms-fontColor-themePrimary",
"title": "Details"
},
"style":
{
"flex": "none",
"padding": "0px",
"padding-left": "0px",
"height": "36px"
}
}
]
},
{
"elmType": "div",
"attributes":
{
"class": "ms-fontColor-neutralSecondary ms-fontWeight-bold ms-fontSize-24"
},
"style":
{
"box-sizing": "border-box",
"width": "100%",
"text-align": "left",
"padding": "21px 12px",
"overflow": "hidden"
},
"children":
[
{
"elmType": "div",
"txtContent": "My Header Title"
}
]
}
]
},
{
"elmType": "div",
"txtContent": "Line 01.\n\n"
},
{
"elmType": "div",
"txtContent": "Line 02.\n\n"
},
{
"elmType": "img",
"attributes":
{
"src": "https://picsum.photos/600/300"
}
}
]
}
will produce:
flex styling. I'd like to add image and text divs beneath the header icon and text, but can't figure out how to put them on a 'new line'. Am having a 'peter griffin CSS meme' moment.
Jan 17 at 3:17