作为一项任务的一部分,我正在制作一个订购网站。医生登录后可以看到他的患者提交的所有订单。当医生选中某些复选框并点击按钮时,被选中的复选框会更新订单(行)列(批准)为已批准状态。未选中的复选框会将批准列更新为未批准 - 所有这些都可以正常工作和更新 ...
然而,此后网格并不会消失 - 医生仍然可以继续更新订单并更改它们,但我希望只显示尚未被选中/取消选中的新订单。- 我不知道如何在我的vb代码中应用此功能。
我不希望订单从数据库订单表中删除 - 只是向医生呈现尚未检查/未选择的新订单。
我的网格:
<asp:GridView ID="GridViewdoc" runat="server" AutoGenerateColumns="False" DataKeyNames="OrderId">
<Columns>
<asp:BoundField DataField="OrderID" HeaderText="Order Id" />
<asp:BoundField DataField="DoctorId" HeaderText="Doctor Id" />
<asp:BoundField DataField="Forename" HeaderText="Forename" />
<asp:BoundField DataField="Surname" HeaderText="Surname" />
<asp:BoundField DataField="MedicineId" HeaderText="Medicine Id" />
<asp:BoundField DataField="MedicineName" HeaderText="Medicine Name" />
<asp:BoundField DataField="pharmname" HeaderText="Pharmacy Name" />
<asp:BoundField DataField="Dateordered" HeaderText="Date Ordered" />
<asp:TemplateField HeaderText="Approve Status">
<ItemTemplate>
<asp:CheckBox ID="ApproveBox" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
我的代码背后的gid:
Imports System.Data.SqlClient
导入System.Data
部分类Pages_docorders 继承自System.Web.UI.Page
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
If Not IsPostBack Then
Dim conn As New System.Data.SqlClient.SqlConnection("Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\surgerydb.mdf;Integrated Security=True;Connect Timeout=30")
Dim cmd3string As String = " Select * From docgridview WHERE DoctorId = " & Session("DoctorId")
Dim dt As New System.Data.DataTable()
Dim da As New System.Data.SqlClient.SqlDataAdapter(cmd3string, conn)
conn.Open()
da.Fill(dt)
conn.Close()
GridViewdoc.DataSource = dt
GridViewdoc.DataBind()
End If
End Sub
Protected Sub GridViewdoc_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridViewdoc.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
Dim drview As DataRowView = TryCast(e.Row.DataItem, DataRowView)
'Find checkbox and checked/Unchecked based on values
Dim chkb As CheckBox = DirectCast(e.Row.FindControl("ApproveBox"), CheckBox)
If drview(8).ToString() = "Approve" Then
chkb.Checked = True
Else
End If
End If
End Sub
Protected Sub btnapprove_Click(sender As Object, e As System.EventArgs) Handles btnapprove.Click
Dim dt As Data.DataTable = Session("Approved")
Dim val As String
val = ""
Dim Oid As Integer
Dim conn As New System.Data.SqlClient.SqlConnection("Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\surgerydb.mdf;Integrated Security=True;Connect Timeout=30")
For Each row As GridViewRow In GridViewdoc.Rows
Dim therowindex As Integer = row.RowIndex
Oid = Integer.Parse(GridViewdoc.DataKeys(therowindex).Value.ToString())
val = ""
Dim cb As CheckBox = row.FindControl("ApproveBox")
If cb.Checked Then
val = "Approved"
Else
val = "Disapproved"
End If
If Oid > 0 Then
Dim cmdstring As String = " UPDATE Order_pres SET Approved = @appr Where OrderID= @oid"
conn.Close()
conn.Open()
Dim cmd = New SqlCommand(cmdstring, conn)
cmd.Parameters.Add("@appr", Data.SqlDbType.NVarChar).Value = val
cmd.Parameters.Add("@oid", Data.SqlDbType.NVarChar).Value = Oid
Dim result As Integer
result = cmd.ExecuteNonQuery()
End If
Next
Dim cmd3string As String = " Select * From docgridview WHERE DoctorId = " & Session("DoctorId")
Dim dtm As New System.Data.DataTable()
Dim da As New System.Data.SqlClient.SqlDataAdapter(cmd3string, conn)
conn.Close()
conn.Open()
da.Fill(dtm)
conn.Close()
GridViewdoc.DataSource = dtm
GridViewdoc.DataBind()
End Sub
结束类
希望有人能帮忙 - 谢谢 :)