单击vb.net 2008中的清除按钮后，减少datagridview中的行

问题描述

我在我的项目中使用datagridview.我正在使用此代码清除行.项目仅在清除，但行仍在

I am using datagridview in my project. I am using this code to clear rows.the items are only clearing but the rows are remaining

btnclear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnclear.Click
        
        For j As Integer = 0 To datagridrequest.Rows.Count - 1
            datagridrequest.Rows(j).Cells(Column1).Value = ""
            datagridrequest.Rows(j).Cells(Column2).Value =""   
            datagridrequest.Rows(j).Cells(Column4).Value = ""
            datagridrequest.Rows(j).Cells(Column5).Value =""
        Next
    End Sub

请给我这两个行以及要清除的添加项的解决方案.

pls give me solution to both rows and added items to be cleared.

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