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Poweruser1101
Helper II
Helper II

embedded canvas app + Issue with patch not updating the null values

Hi All,

 

I have created an embedded canvas app in model driven CRM Form.

 

I am updating my crm form values through the embedded canvas app -

 

I added the below formula on "OnDataRefresh" property of "ModelDrivenFormIntegration" so that data is updated when i hit Save on CRM Form -

 

Patch('DataSourceName', ModelDrivenFormIntegration.Item,
{
    'Attribute 1' :Value(DataCardValue3.Text),
     'Attribute 2' :Value(DataCardValue4.Text),

}
);

 

 

This works fine when i update the value of the fields such as from '600' to '700'. However the issue arises when i remove the values from the field such as from ''600" to blank " ". When the field value is blank, it does not update the  ModelDrivenFormIntegration.Item and shows the previous value again as soon as i hit Save. 

 

Also tried turning on "Formula Level Error Management", it did not work, also with this setting on my formulas stopped working 

 

Kindly suggest any help would be appreciated.

 

1 ACCEPTED SOLUTION

Accepted Solutions
v-bofeng-msft
Community Support
Community Support

Hi @Poweruser1101 :

Please turn on "Formula Level Error Management" and try this formula:

Patch('DataSourceName', ModelDrivenFormIntegration.Item,
{
    'Attribute 1': If(IsBlank(DataCardValue3.Text),Blank(),Value(DataCardValue3.Text)),
     'Attribute 2': If(IsBlank(DataCardValue4.Text),Blank(),Value(DataCardValue4.Text))
}
)

 Best Regards,

Bof

View solution in original post

5 REPLIES 5
v-bofeng-msft
Community Support
Community Support

Hi @Poweruser1101 :

Please turn on "Formula Level Error Management" and try this formula:

Patch('DataSourceName', ModelDrivenFormIntegration.Item,
{
    'Attribute 1': If(IsBlank(DataCardValue3.Text),Blank(),Value(DataCardValue3.Text)),
     'Attribute 2': If(IsBlank(DataCardValue4.Text),Blank(),Value(DataCardValue4.Text))
}
)

 Best Regards,

Bof

@v-bofeng-msft Hey thank you for your responding.

I tried the above code by turning on the "Formula Level Error Management" but it didn't work for me.

After i turn on the above setting, my Save stops working. If I turn off the setting and only apply the code change you mentioned, still the code does not work. What could be the issue behind this?

Poweruser1101
Helper II
Helper II

@v-bofeng-msft Hey apologies i realised..the solution does work for me. It does save back the null values only after turning the setting on and applying the code.Only Issue is my formulas have stopped working. I have formula on one of the datacards - which is a sum of several other datacards -

 

Formula - 

Set in 'Default Property of DataCardValue of Datacard' -

Value(DataCardValue11.Text)+Value(DataCardValue24.Text)+Value(DataCardValue32.Text) +Value(DataCardValue40.Text)

 

Now the formula does not work and does show any value. Can you please think of anything which could be wrong?

Hi @Poweruser1101 :

Sorry, I’m not sure what your new request is. If my understanding is wrong, please point it out.

About  'Default Property of DataCardValue of Datacard'  .Could you tell me:

  • What is DataCardValue ?Is it a combo box control?
  • What is Datacard?What is its corresponding field? What is its data type?

Case1:If DataCardValue is a combo box, then its "Default" property does not work, you need to set its "DefaultSelectedItems" property.

Case2:If it is a data type problem, such as when the values of the textinput control are all empty, you want the value of "Value(DataCardValue11.Text)+Value(DataCardValue24.Text)+Value(DataCardValue32.Text) +Value(DataCardValue40.Text)" to be blank, Then you need to use this formula:

If(
  IsBlank(DataCardValue11.Text)&&IsBlank(DataCardValue24.Text)&&IsBlank(DataCardValue32.Text)&&IsBlank(DataCardValue40.Text),
  Blank(),
  Value(DataCardValue11.Text)+Value(DataCardValue24.Text)+Value(DataCardValue32.Text) +Value(DataCardValue40.Text)
)

Best Regards,

Bof

@v-bofeng-msft Thank you so much. I resolved the formula error too with your given suggestion.

 

IfError(

If(IsBlank('Test1 Sales Number_DataCardValue'.Text), 0, Value('Test1 Sales Number_DataCardValue'.Text)) +
If(IsBlank('Test2 Sales Number_DataCardValue'.Text), 0, Value('Test2 Sales Number_DataCardValue'.Text)) +
If(IsBlank('Test3 Sales Number_DataCardValue'.Text), 0, Value('Test3 Sales Number_DataCardValue'.Text)) +
If(IsBlank('Test4 Sales Number_DataCardValue'.Text), 0, Value('Test4 Sales Number_DataCardValue'.Text))

, ThisItem.'Stored Value of the field').

 

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