实例介绍
【实例简介】MVC5增删改查实例
【实例截图】
Public Class CRUDController
Inherits Controller
' GET: /CRUD
Function Index() As ActionResult
Using conn As New SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings("ADOConstr").ConnectionString)
Using da As New SqlDataAdapter("select * from tb_user", conn)
Using ds As New DataSet
da.Fill(ds)
Dim list As New List(Of UserViewModel)
For Each row As DataRow In ds.Tables(0).Rows
list.Add(New UserViewModel With {.EMail = row("EMail").ToString(), .Name = row("Name").ToString(), .ID = row("ID").ToString(), .Telephone = row("Telephone").ToString()})
Next
Return View(list)
End Using
End Using
End Using
End Function
' GET: /CRUD/Details/5
Function Details(ByVal id As Integer) As ActionResult
Using conn As New SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings("ADOConstr").ConnectionString)
Using da As New SqlDataAdapter("select * from tb_user where id = " & id.ToString(), conn)
Using ds As New DataSet
da.Fill(ds)
Dim row = ds.Tables(0).Rows(0)
Dim m As New UserViewModel With {.EMail = row("EMail").ToString(), .Name = row("Name").ToString(), .ID = row("ID").ToString(), .Telephone = row("Telephone").ToString()}
Return View(m)
End Using
End Using
End Using
End Function
' GET: /CRUD/Create
Function Create() As ActionResult
Return View()
End Function
' POST: /CRUD/Create
<HttpPost()>
Function Create(ByVal collection As FormCollection) As ActionResult
Try
' TODO: Add insert logic here
Return RedirectToAction("Index")
Catch
Return View()
End Try
End Function
' GET: /CRUD/Edit/5
Function Edit(ByVal id As Integer) As ActionResult
Return View()
End Function
' POST: /CRUD/Edit/5
<HttpPost()>
Function Edit(ByVal id As Integer, ByVal collection As FormCollection) As ActionResult
Try
' TODO: Add update logic here
Return RedirectToAction("Index")
Catch
Return View()
End Try
End Function
' GET: /CRUD/Delete/5
Function Delete(ByVal id As Integer) As ActionResult
Using conn As New SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings("ADOConstr").ConnectionString)
Using da As New SqlDataAdapter("select * from tb_user where id = " & id.ToString(), conn)
Using ds As New DataSet
da.Fill(ds)
Dim row = ds.Tables(0).Rows(0)
Dim m As New UserViewModel With {.EMail = row("EMail").ToString(), .Name = row("Name").ToString(), .ID = row("ID").ToString(), .Telephone = row("Telephone").ToString()}
Return View(m)
End Using
End Using
End Using
End Function
' POST: /CRUD/Delete/5
<HttpPost()>
Function Delete(ByVal id As Integer, ByVal collection As FormCollection) As ActionResult
Try
' TODO: Add delete logic here
Using conn As New SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings("ADOConstr").ConnectionString)
conn.Open()
Using cmd As New SqlCommand("delete from tb_user where id = " & id.ToString(), conn)
cmd.ExecuteScalar()
End Using
End Using
Return RedirectToAction("Index")
Catch
Return View()
End Try
End Function
End Class
【实例截图】
【核心代码】
Imports System.Web.Mvc
Imports System.Data.SqlClientPublic Class CRUDController
Inherits Controller
' GET: /CRUD
Function Index() As ActionResult
Using conn As New SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings("ADOConstr").ConnectionString)
Using da As New SqlDataAdapter("select * from tb_user", conn)
Using ds As New DataSet
da.Fill(ds)
Dim list As New List(Of UserViewModel)
For Each row As DataRow In ds.Tables(0).Rows
list.Add(New UserViewModel With {.EMail = row("EMail").ToString(), .Name = row("Name").ToString(), .ID = row("ID").ToString(), .Telephone = row("Telephone").ToString()})
Next
Return View(list)
End Using
End Using
End Using
End Function
' GET: /CRUD/Details/5
Function Details(ByVal id As Integer) As ActionResult
Using conn As New SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings("ADOConstr").ConnectionString)
Using da As New SqlDataAdapter("select * from tb_user where id = " & id.ToString(), conn)
Using ds As New DataSet
da.Fill(ds)
Dim row = ds.Tables(0).Rows(0)
Dim m As New UserViewModel With {.EMail = row("EMail").ToString(), .Name = row("Name").ToString(), .ID = row("ID").ToString(), .Telephone = row("Telephone").ToString()}
Return View(m)
End Using
End Using
End Using
End Function
' GET: /CRUD/Create
Function Create() As ActionResult
Return View()
End Function
' POST: /CRUD/Create
<HttpPost()>
Function Create(ByVal collection As FormCollection) As ActionResult
Try
' TODO: Add insert logic here
Return RedirectToAction("Index")
Catch
Return View()
End Try
End Function
' GET: /CRUD/Edit/5
Function Edit(ByVal id As Integer) As ActionResult
Return View()
End Function
' POST: /CRUD/Edit/5
<HttpPost()>
Function Edit(ByVal id As Integer, ByVal collection As FormCollection) As ActionResult
Try
' TODO: Add update logic here
Return RedirectToAction("Index")
Catch
Return View()
End Try
End Function
' GET: /CRUD/Delete/5
Function Delete(ByVal id As Integer) As ActionResult
Using conn As New SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings("ADOConstr").ConnectionString)
Using da As New SqlDataAdapter("select * from tb_user where id = " & id.ToString(), conn)
Using ds As New DataSet
da.Fill(ds)
Dim row = ds.Tables(0).Rows(0)
Dim m As New UserViewModel With {.EMail = row("EMail").ToString(), .Name = row("Name").ToString(), .ID = row("ID").ToString(), .Telephone = row("Telephone").ToString()}
Return View(m)
End Using
End Using
End Using
End Function
' POST: /CRUD/Delete/5
<HttpPost()>
Function Delete(ByVal id As Integer, ByVal collection As FormCollection) As ActionResult
Try
' TODO: Add delete logic here
Using conn As New SqlConnection(System.Configuration.ConfigurationManager.
ConnectionStrings("ADOConstr").ConnectionString)
conn.Open()
Using cmd As New SqlCommand("delete from tb_user where id = " & id.ToString(), conn)
cmd.ExecuteScalar()
End Using
End Using
Return RedirectToAction("Index")
Catch
Return View()
End Try
End Function
End Class
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