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SirishaM How to display exception message
Hi,
I used try and catch statements in Controller extension to catch DML errors.
How can I disply the error message ? I know that I can get the message from e.getMessage() where "e" is the exception.
But how do I display it on the current page . I tried using ApexPages but cud not succeed.
Thanks in advance!
Sirisha
I used try and catch statements in Controller extension to catch DML errors.
How can I disply the error message ? I know that I can get the message from e.getMessage() where "e" is the exception.
But how do I display it on the current page . I tried using ApexPages but cud not succeed.
Thanks in advance!
Sirisha
You can use ApexPages.addMessage() and then use the apex:messages or apex:pagemessages component to display them.
Keep in mind when trying to actually implement that example you will need to have a custom field (in this case NumberofLocations) that has a validation rule on it.
Also this might help, and this (last example).
I have an object called Declaration with a validation rule that the Unit of Measure (UOM) must be mg. UOM is a pick list field.
I have a custom controller with 3 tabs. Each tab is displaying a table of Declarations objects with UOM being one of the columns.
Each tab has it's own "save" button. I also have a global "Save All" button which is supposed to save changes in all Tabs
An actual error in UOM is in Tab 2 on 4th row - one of the rows has a UOM as gram ( I managed to populate gram through an API call by turning off validations in the API call).
I can see this validation error if I go to the standard salesforce edit page of this object and click the save button.
Now I see bizarre behavior trying to show this error message on tab 2 on the row/column that has the validation error.
I initially have no <apex:PageMessages/>, since I want to see errors at exact row/column.
1. If I click save button on Tab 2, I don't see the error message on the exact row/column that I would like to see it in!
2. If I put a <apex:PageMessages> on Tab 2 and keep Tab 2 in focus, I see the message on top of Tab2 - whether I click "save all" or Tab 2 save button
3. If I click "Save all" to save changes in all Tabs, and have Tab 1 in focus, I see the error message against the first row on Table in Tab 1 - this row has no validation errors - I verified in the standard detail page.
4. If remove the <apex:PageMessages> from Tab 2 and put it in Tab 3 and click "Save All" with Tab 3 in focus, I see the message on top of Tab 3.
In the code for SaveTab 1/Tab 2/Tab 3, I have following:
try {
update this.m_DItems[0/1/2];
} catch (DmlException e) {
ApexPages.addMessages(e);
}
In code for "Save All" - I have tried both way - call the SaveTab1/Tab2/Tab3 functions and doing the following:
try {
update this.m_DItems[0];
update this.m_DItems[1];
update this.m_DItems[2];
} catch (DmlException e) {
ApexPages.addMessages(e);
}
Message Edited by GoForceGo on 06-26-2008 10:20 AM
If I have data errors in row 1 for UOM field and errors on row 2 of the table (on other field weight), the system shows errors only against row 1 of the table.
If I fix my error in row 1 without fixing the error in row 2 and click save, it still show me an error in row 1.
If I fix the error in row 2, it error disappears!
Before summer 08, I wrote some custom code to create a string with all the errors and show it at the top with row numbers included. Works but not elegent.
Were you able to resolve this issue?
I am having the same issue. When I have my validation error on the 2nd or 3rd row...and on, the first row also shows the error message.
Thanks,
Rohit