Protected Sub gv_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles gv.RowUpdating Dim i As String = CType((gv.Rows(e.RowIndex).Cells(1).Controls(0)), TextBox).Text.ToString.Trim
Dim s As String = "Data Source=.;Initial Catalog=teacher;Integrated Security=True"
Dim s1 As String = CType((gv.Rows(e.RowIndex).Cells(2).Controls(0)), TextBox).Text.ToString.Trim
Dim s2 As String = CType((gv.Rows(e.RowIndex).Cells(3).Controls(0)), TextBox).Text.ToString.Trim
Dim s3 As String = "update AA set name='" + s1 + "',password='" + s2 + "'where id='" + i + "'"
Dim sql As New SqlConnection(s)
Dim sqlcom As New SqlCommand(s3, sql)
sql.Open()
Session.Clear()
Session("ss") = s1//错误 “取出来的数值 是更新前的数据” sqlcom.ExecuteNonQuery() sql.Close() gv.EditIndex = -1
bind()
Dim s As String = "Data Source=.;Initial Catalog=teacher;Integrated Security=True"
Dim s1 As String = CType((gv.Rows(e.RowIndex).Cells(2).Controls(0)), TextBox).Text.ToString.Trim
Dim s2 As String = CType((gv.Rows(e.RowIndex).Cells(3).Controls(0)), TextBox).Text.ToString.Trim
Dim s3 As String = "update AA set name='" + s1 + "',password='" + s2 + "'where id='" + i + "'"
Dim sql As New SqlConnection(s)
Dim sqlcom As New SqlCommand(s3, sql)
sql.Open()
Session.Clear()
Session("ss") = s1//错误 “取出来的数值 是更新前的数据” sqlcom.ExecuteNonQuery() sql.Close() gv.EditIndex = -1
bind()
什么意思?这时s1的值是CType((gv.Rows(e.RowIndex).Cells(2).Controls(0)), TextBox).Text.ToString.Trim 的值,不对吗?
Protected Sub form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles form1.Load
Dim s As String = "Data Source=.;Initial Catalog=teacher;Integrated Security=True"
Dim a As String = "select * from AA"
Dim sql As New SqlConnection(s)
sql.Open()
Dim scmd As New SqlDataAdapter(a, sql)
Dim ad As SqlCommandBuilder = New SqlCommandBuilder(scmd)
Dim ds As Data.DataSet = New Data.DataSet()
scmd.Fill(ds) gv.DataSource = ds
gv.DataBind() sql.Close() End Sub
if(!IsPostback)
{
DataGridView控件的绑定方法
}里面了,如果没有这个判断,我估计就是这个造成的,你加上就可以了应该。
if(!Ispostback)
{
Dim s As String = "Data Source=.;Initial Catalog=teacher;Integrated Security=True"
Dim a As String = "select * from AA"
Dim sql As New SqlConnection(s)
sql.Open()
Dim scmd As New SqlDataAdapter(a, sql)
Dim ad As SqlCommandBuilder = New SqlCommandBuilder(scmd)
Dim ds As Data.DataSet = New Data.DataSet()
scmd.Fill(ds) gv.DataSource = ds
gv.DataBind() sql.Close()
} End Sub
{
我引用了,还是一样的效果
不过不太明白FindControl的意思
你执行那个sql语句能好使吗?