Changing image dynamically in text area in spotfire

[Arijit Dutta]

Hi Everyone,

I have a poperty control in Textarea with three vlaues A,B and C and each value has a different image to be shown in the same text area where this property control resides . Means i have a inserted image in spotfire and it has to be changed on the property control selection.

I used the below code but it gave error in html as: Invalid src value 'A'.

 

from Spotfire.Dxp.Application.Visuals import *

from System.IO import *

from System.Drawing import *

from System.Drawing.Imaging import *

from System.Text.RegularExpressions import *

 

#Add txtArea as a script parameter referring to the TextArea

vis=txtArea.As[HtmlTextArea]()

 

 

# Add images from a file

image1 = Image.FromFile(r"C:Users\Downloadsimage001.png");

image2 = Image.FromFile(r"C:Users\Downloadsimage001.jpg");

image3 = Image.FromFile(r"C:Users\Downloadsimage001 (2).png");

 

#Check if the images already exist in the collection

image1Exists=vis.Images.Contains("image1")

image2Exists=vis.Images.Contains("image2")

image3Exists=vis.Images.Contains("image3")

 

#Add the images to the collection if not already added

if not image1Exists:

vis.Images.Add("image1",image1,ImageFormat.Png)

if not image2Exists:

vis.Images.Add("image2",image2,ImageFormat.Jpeg)

if not image3Exists:

vis.Images.Add("image3",image3,ImageFormat.Png)

 

#Get which Image to be shown

imageName=Document.Properties["showImage"]

 

#Get the current html content

content=vis.HtmlContent

 

#check if HTML image element is already present

htmlImage=content.Contains("img src")

 

 

if htmlImage:

#code to replace the image

input = vis.HtmlContent;

oldValue = Regex.Match(input, ""(.+)"").Groups[1].Value;

input = input.Replace(oldValue,imageName );

vis.HtmlContent=input

else:

#code to add the HTML Image element the first time

addImage= ""

vis.HtmlContent=addImage+content