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How to resolve validation message appears even after value change on the drop down?

Platform: jQuery |
Control: ejGrid

This KB showcase the example to disappear the Validation Message shown even after the value is changed in the dropdown list using valid method.


In dropdown list, we have maintained the hidden input element. The jQuery validation is not works for hidden element. Due to this the default validation is not working in dropdown list to overcome this, use the valid method in the dropdown change event.

Step 1: Render the grid control.











.Net core






Step 2: In the actionComplete event while adding the records, we have removed the validation message using valid method in the dropdown change event.


Figure 1: Before using valid method, Validation Message is shown even after the value is changed in the drop down.


Figure 2: After using valid method, Validation Message is disappeared when value is changed in dropdown.




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Terrance Smith
Jul 16, 2020

In the code at step 2 line # 7

$("#GridEmployeeID ").ejDropDownList({ 
                          change: function (args) { 
                                 this.element.valid(); // validation message removed once value selected. 

where is


coming from ? Is that a typo or a naming convention? I don't see it declared anywhere else.

Is it a name determined by attributes already declared?

For example :{GridId}+{FieldName}?

Manivannan Padmanaban [Syncfusion]
Jul 17, 2020

Hi Terrance,

Greetings from Syncfusion Support.

As you mentioned, “GridEmployeeID” is GridID + FieldName. In the Knowledge Base help documentation example, we have defined the grid ID as “Grid” and the dropdown filed name is “EmployeeID”. So the dropdown element ID will be “GridEmployeeID”. As like same, you can use your grid ID and dropdown field name to get the dropdown element.

Kindly get back to us, if you need further assistance. We will be happy to assist you.

Regards, Manivannan Padmanaban

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