the first question is when I set several columns frozen,and I drag the scroll bar, the details is shown in error.the error is shown in attach file 1.

It seems that you forgot to attach file 1.png as attachment. Please re-attach them so that we can assist you further.

the second question is when I use webinput in using date format,the webgrid is below the webinput control.then it showns error in attach file 2.

Based on your description, I tried to create a simple page then add WebInput and WebGrid inside. The WebInput is configured as datetime editor and placed above the WebGrid control.

When the page is viewed in browser, the appearance of WebInput is different compared to file 2.png (attached in Roger Chen's post - September 14, 2015). Following image shows WebInput with DateTimeEditor enabled.

Based on the appearance of the editor in file 2.png, the closest possibility is the built-in editor of WebGrid called CalendarDropdown or CalendarCombo.

Could you please confirm about the reported problem so that I can assist you further?

the first problem attach is uploaded.

About the second problem,we use Intersoft 2014,WebInput 4.0.7200.253 version.Is it different from yours?