这是我的更新活动代码
Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating
Connection.Open()
Dim idd As Integer
idd = GridView1.DataKeys(e.RowIndex).Value
Dim empname As TextBox
Dim a As String
empname = GridView1.Rows(e.RowIndex).FindControl("empName")
a = Trim(empname.Text.ToString)
Dim Command As New OleDbCommand("update employeeDetails set empName='" & a & "' where ID=" & Trim(idd) & " ", Connection)
Command.ExecuteNonQuery()
Connection.Close()
GridView1.EditIndex = -1
Response.Redirect("listOfAssociates.aspx")
End Sub
我的gridview代码是:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="ID">
<Columns>
<asp:TemplateField HeaderText="S NO"></asp:TemplateField>
<asp:BoundField HeaderText="Emp Id" DataField="empNumber"/>
<asp:BoundField HeaderText="Emp Name" DataField="empName"/>
<asp:BoundField HeaderText="Emp Email Id" DataField="empEmailId"/>
<asp:BoundField HeaderText="Role" DataField="empRole"/>
<asp:BoundField HeaderText="Project Won" DataField="empProjectNumber"/>
<asp:BoundField HeaderText="Project Name" DataField="empProjectName"/>
<asp:BoundField HeaderText="Start Date" DataField="empProjectStartDate"/>
<asp:BoundField HeaderText="End Date" DataField="empProjectEndDate"/>
<asp:BoundField HeaderText="Supervisor Id" DataField="empProjectSupervisorId"/>
<asp:BoundField HeaderText="Allocation %" DataField="empProjectAP"/>
<asp:CommandField ShowEditButton="True" />
<asp:CommandField ShowDeleteButton="True" />
</Columns>
</asp:GridView>
它正在删除和获取正常但在尝试更新时显示nullreferenceexception未被此行中的用户代码处理:
a = Trim(empname.Text.ToString)
任何人都可以帮助我。提前谢谢使用ms访问作为数据库
答案 0 :(得分:0)
试试这个......
'intRowIndex = Integer Variable of Row you wish to retrieve values from.
a = Trim(gridview1.rows(intRowIndex).Cells(2).Text)