I have gridview that changes a cell value to date Time whenever I click the review button.
change the value of marks and then check if you are getting your new value in str Marks.
This article shows you how to format number fields (currency and percentages) and telephone numbers, and make URLs and email addresses clickable in an ASP. Figure 1 shows you a gridview with no fields formatted.
This article assumes that you have created a website, imported an Access database into it, configured your data source using the Access Data Source Control, created a Gridview on a web page, and saved the page with an file extension.
Is there something wrong with the update sql statement which might be causing this problem?
The visitors to a web site can typically be divided into two groups: the users and the administrators.