add validation like From date & To date in Contract class

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Posted on by @rp@n

How will add validation like From date & To date in Contract class in SSRS report? Generally, will add in Controller class.

Please give me more shed on this

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Blue Wang on at

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Hi @rp@n,

For RDL data contracts, the SrsReportRdlDataContract class implements default validation that will do basic parameter validation.

For RDP data contracts, implement the validate method and return True or False to indicate whether the parameter is valid. It is required to attach the DataContractAttribute attribute.

Please read this doc: docs.microsoft.com/.../how-to-add-validation-to-a-data-contract-class

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vinitgoyal2005 6,332 on at

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Hi Arpan,

Your contact class needs to implement 'SysOperationValidatable' and implement the Validate method. You can find a reference for this class in AOT to get an example.

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Gunjan Bhattachayya 35,423 on at

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Hi Arpan,

You can check the validate method in InventAgingContract class. It implements SysOperationValidatable as Vinit mentioned. This class also has a validation of from and to dates that you can follow.

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@rp@n 30 on at

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Thanks all

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@rp@n 30 on at

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Is there any difference between validation controller class and contract class?

Kindly elaborate please

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Gunjan Bhattachayya 35,423 on at

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Do you mean that you want to validate in the controller class rather than in the contract class?

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Blue Wang on at

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HI,

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@rp@n 30 on at

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Yes Gunjan

When to recommended to put validation in Contract class instead of Controller class.

Is there any benefit?

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Gunjan Bhattachayya 35,423 on at

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Hi Arpan,

All the parameter validations must be in the contract class only. This way the warnings will be thrown on the parameter form only and can be corrected by the user without closing/re-opening the form.

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