Invalid postback or callback argument. Event validation is enabled using
When i faced this issue
Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %> in a page.
I fixed it by putting my Databind code ie: Gridview Databind code in the Page_Load event in a !Page.IsPostBack block
Solution:
if(!IsPostback)
{
//Bind the Gridview Databind
}
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