How to use Substitute() on special character like " and '

[HirenKataria]

Here I want to substute site address in every <img> tag <img src="/Test/Test.jpg" alt="" />

so I use

Substitute(ThisItem.Instructions,"<img src=","<img src='https://powerTest.sharepoint.com")

But here it breaks a URL by adding extra "

Result: <img src="https://powerTest.sharepoint.com"/Test/Test.jpg" alt="" />

So images are not render in Htmltext control.  If anyone have idea please suggest how to do this?

[CarlosFigueira]

You can use the following expression:

Substitute(
    ThisItem.Instructions,
    "<img src=""",
    "<img src=""https://powertest.sharepoint.com")

This will search for the (") character (to enter a double quote in a string you need to "double it"), and replace it with another one.

[NEPatton]

---

@CarlosFigueira wrote:

You can use the following expression:

Substitute(
    ThisItem.Instructions,
    "<img src=""",
    "<img src=""https://powertest.sharepoint.com")

This will search for the (") character (to enter a double quote in a string you need to "double it"), and replace it with another one.

---

Yeah - the root of the issue here is that you were searching/replacing

<img src=

but you really wanted to be searching for

<img src="

You can follow @CarlosFigueira's method, or you can use the Char() function.  The Char() function can sometimes look clunky, but I often prefer it because there are fewer questions about what's happening.  Char(34) = "  It's equivalent to write Char(34) as it is to write "".  Using this function, your solution could also look like this:

Substitute(
    ThisItem.Instructions,
    "<img src="&char(34),
    "<img src=""https://powertest.sharepoint.com")

 Or, alternatively....

Substitute(
    ThisItem.Instructions,
    "<img src="&char(34),
    "<img src="&char(34)&"https://powertest.sharepoint.com")

So again -- it looks clunky, but if you're comfortable with using functions like this -- it could be argued that there is less ambiguity here.  2 ways to get the same thing, pick your preference and good luck!

[v-xida-msft · Accepted solution]

Hi @HirenKataria,

Based on the needs that you mentioned, I agree with @NEPatton's thought almost. I think the Char() function could achieve your needs.

On your side, please modify your Substitude formula as below:

Substitute(
           ThisItem.Instructions, 
           "<img src="&Char(39), 
           "<img src="& Char(39) &"https://powerTest.sharepoint.com"
)

More details about the Char() function in PowerApps, please check the following article:

Char function

More details about ASCII characters supported within your platform, please check the following article:

http://www.asciitable.com/

Best regards,

[HirenKataria]

Hi @v-xida-msft

Thank you fot this solution. Here images are only visible in powerapps web player not in mobile device. So how we achive to show images in both powerapps web and mobile device?