Asp.net 使用常规集合列表将新记录添加到gridview 我有一个gridview，它通过文本框接受数据库表中的值，然后有编辑和保存按钮。保存按钮将更新数据保存到表中。我想添加一个按钮，该按钮将在文本框中添加具有空值的新行。请提供通过常规集合列表将新行添加到网格视图的方法。 班

期末班

我也有类似的问题。。。。我所做的是在表中创建一个空行并将其绑定到gridview，然后将最后一行置于editmode

@MuadhProgrammer请告诉我如何通过按钮将新行添加到我的上述代码中单击使用通用集合列表请提及使用通用集合列表将新行添加到我的网格视图中的方法我正在努力获得解决方案。网络中的大部分链接使用数据表和数据行创建动态行文本框。我们如何使用泛型实现相同的功能lists@Hsakarp只需参考我上面的代码，我已经使用了通用集合列表

<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div>

    <br />
    <asp:Button ID="Button1" runat="server" Text="Refresh" />
    <br />

</div>

    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"> 
    <Columns>
    <asp:TemplateField HeaderText="ProjectId">
        <ItemTemplate>
          <asp:TextBox ID="TextBox3" runat="server"  readonly="true"  Text='<%#         Eval("Projectid") %>'>' ></asp:TextBox>

         </ItemTemplate>                
    </asp:TemplateField>
 <asp:TemplateField HeaderText="ProjectName">
        <ItemTemplate>
          <asp:TextBox ID="TextBox1" runat="server" ReadOnly="true" OnTextChanged="TextBox1_TextChanged"  Text='<%# Eval("ProjectName") %>' 
               ></asp:TextBox>

         </ItemTemplate>                
    </asp:TemplateField>
     <asp:TemplateField HeaderText="ProjectModifiedDate">
        <ItemTemplate>

            <asp:TextBox ID="TextBox2" runat="server" OnTextChanged="TextBox2_TextChanged" ReadOnly="true" Text='<%# Eval("ProjectmodifiedDate")%>'  ></asp:TextBox>
            <asp:Image ID="Image1" runat="server" Height="20px" Width="20px" ImageUrl="~/Images/calender.jpg"/>
            <asp:CalendarExtender ID="CalendarExtender1" Enabled="false" TargetControlID="TextBox2" PopupButtonID="Image1" runat="server">
            </asp:CalendarExtender>


         </ItemTemplate>                
    </asp:TemplateField>
     <asp:TemplateField HeaderText="RecordUpdatedDate">
        <ItemTemplate>
            <asp:TextBox ID="TextBox4" runat="server"  ReadOnly="true" Text='<%# Eval("recordupdateddate")%>'  > > </asp:TextBox>
         </ItemTemplate>                
    </asp:TemplateField>

     <asp:TemplateField HeaderText="ProjectLocation">
        <ItemTemplate>
            <asp:TextBox ID="TextBox5" runat="server" OnTextChanged="TextBox5_TextChanged" ReadOnly="true" Text='<%# Eval("ProjectLocation")%>'  > > </asp:TextBox>
         </ItemTemplate>                
    </asp:TemplateField>

     <asp:TemplateField HeaderText="LocationServerName">
        <ItemTemplate>
            <asp:TextBox ID="TextBox6" runat="server" OnTextChanged="TextBox6_TextChanged" ReadOnly="true" Text='<%# Eval("LocationServerName")%>'  > > </asp:TextBox>
         </ItemTemplate>                
    </asp:TemplateField>

     <asp:TemplateField HeaderText="ProjectModifiedBy">
        <ItemTemplate>
            <asp:TextBox ID="TextBox7" runat="server" OnTextChanged="TextBox7_TextChanged" ReadOnly="true" Text='<%# Eval("ProjectModifiedBy")%>'  > > </asp:TextBox>
         </ItemTemplate>                
    </asp:TemplateField>

     <asp:TemplateField HeaderText="DBServer">
        <ItemTemplate>
            <asp:TextBox ID="TextBox8" runat="server" OnTextChanged="TextBox8_TextChanged" ReadOnly="true" Text='<%# Eval("DBServer")%>'  > > </asp:TextBox>
         </ItemTemplate>                
    </asp:TemplateField>

     <asp:TemplateField HeaderText="DBName">
        <ItemTemplate>
            <asp:TextBox ID="TextBox9" runat="server" OnTextChanged="TextBox9_TextChanged" ReadOnly="true" Text='<%# Eval("DBName")%>'  > > </asp:TextBox>
         </ItemTemplate>                
    </asp:TemplateField>
   </Columns>


   </asp:GridView>

   <br />
   <br />
   <asp:Button ID="Button4" runat="server" Text="Add New Row" />
   <asp:Label ID="Label2" runat="server" Text="Label"></asp:Label>
   <br />

   <br />
     <asp:Button ID="Button3" runat="server" Text="Edit" />

     <asp:Button ID="Button2"  runat="server" Text="Save" Enabled="false"/>
     <asp:Label ID="Label1" runat="server"></asp:Label>
   <br />

    </form>

Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration


Partial Class Projectinfo
Inherits System.Web.UI.Page

Shared projectinfolist As New List(Of projectinfoclass)



Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim objtable As New DataTable("projectinfoclass")
    Dim MyDS As DataSet
    Dim Conn As SqlConnection
    Dim Cmd As SqlDataAdapter
    Conn = New SqlConnection(ConfigurationManager.ConnectionStrings("conString").ConnectionString)
    Cmd = New SqlDataAdapter("select * from ProjectInfoNew", Conn)
    MyDS = New DataSet()


    Cmd.Fill(objtable)

    projectinfolist.Clear()
    For Each dr As DataRow In objtable.Rows
        projectinfolist.Add(New projectinfoclass With {.projectId = dr("Projectid").ToString(), .Projectname = dr("ProjectName").ToString(), .projectmodifiedDate = dr("ProjectmodifiedDate").ToString(), .ProjectLocation = dr("ProjectLocation").ToString(), .LocationServerName = dr("LocationServerName").ToString(), .ProjectModifiedBy = dr("ProjectModifiedBy").ToString(), .DBServer = dr("DBServer").ToString(), .DBName = dr("DBName").ToString()})
    Next


    GridView1.DataSource = objtable
    GridView1.DataBind()

End Sub

Protected Sub Button4_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button4.Click

End Sub


Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click

    Try

        For Each obj In projectinfolist

            If obj.Dirty = True Then

                Dim strConnString As String = ConfigurationManager.ConnectionStrings("conString").ConnectionString
                Dim sqlquery As String
                sqlquery = "Sp_UpdateProjectInfo"
                Dim con As New SqlConnection(strConnString)
                Dim cmd As New SqlCommand(sqlquery, con)
                cmd.CommandType = CommandType.StoredProcedure

                Dim projectname As String = obj.Projectname
                Dim projectmodifieddate As String = obj.projectmodifiedDate
                Dim projectid As String = obj.projectId
                Dim Recordupdateddate As String = obj.Recordupdateddate
                Dim ProjectLocation As String = obj.ProjectLocation
                Dim LocationServerName As String = obj.LocationServerName
                Dim ProjectModifiedBy As String = obj.ProjectModifiedBy
                Dim DBServer As String = obj.DBServer
                Dim DBName As String = obj.DBName

                cmd.Parameters.Add(New SqlParameter("@Projectid", SqlDbType.VarChar))
                cmd.Parameters("@Projectid").Value = System.Convert.ToInt32(projectid)

                cmd.Parameters.Add(New SqlParameter("@projectname", SqlDbType.VarChar))
                cmd.Parameters("@projectname").Value = projectname

                cmd.Parameters.Add(New SqlParameter("@projectmodifieddate", SqlDbType.VarChar))
                cmd.Parameters("@projectmodifieddate").Value = projectmodifieddate

                cmd.Parameters.Add(New SqlParameter("@ProjectLocation", SqlDbType.VarChar))
                cmd.Parameters("@ProjectLocation").Value = ProjectLocation

                cmd.Parameters.Add(New SqlParameter("@LocationServerName", SqlDbType.VarChar))
                cmd.Parameters("@LocationServerName").Value = LocationServerName

                cmd.Parameters.Add(New SqlParameter("@ProjectModifiedBy", SqlDbType.VarChar))
                cmd.Parameters("@ProjectModifiedBy").Value = ProjectModifiedBy

                cmd.Parameters.Add(New SqlParameter("@DBServer", SqlDbType.VarChar))
                cmd.Parameters("@DBServer").Value = DBServer

                cmd.Parameters.Add(New SqlParameter("@DBName", SqlDbType.VarChar))
                cmd.Parameters("@DBName").Value = DBName



                con.Open()
                cmd.ExecuteNonQuery()
                con.Close()


                Label1.Text = "Record inserted successfully"

                con.Dispose()

            End If

        Next
    Catch ex As Exception
        Throw ex
    Finally

    End Try


End Sub


Protected Sub TextBox1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs)


    Dim txtbx As TextBox = TryCast(sender, TextBox)
    Dim row As GridViewRow = txtbx.Parent.NamingContainer
    Dim rowindex As Integer = row.RowIndex

    projectinfolist.Item(rowindex).Projectname = txtbx.Text
    projectinfolist.Item(rowindex).Dirty = True
End Sub

Protected Sub TextBox2_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim txtbx As TextBox = TryCast(sender, TextBox)
    Dim row As GridViewRow = txtbx.Parent.NamingContainer
    Dim rowindex As Integer = row.RowIndex
    projectinfolist.Item(rowindex).projectmodifiedDate = txtbx.Text
    projectinfolist.Item(rowindex).Dirty = True


End Sub



Protected Sub TextBox5_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim txtbx As TextBox = TryCast(sender, TextBox)
    Dim row As GridViewRow = txtbx.Parent.NamingContainer
    Dim rowindex As Integer = row.RowIndex
    projectinfolist.Item(rowindex).ProjectLocation = txtbx.Text
    projectinfolist.Item(rowindex).Dirty = True


End Sub

Protected Sub TextBox6_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim txtbx As TextBox = TryCast(sender, TextBox)
    Dim row As GridViewRow = txtbx.Parent.NamingContainer
    Dim rowindex As Integer = row.RowIndex
    projectinfolist.Item(rowindex).LocationServerName = txtbx.Text
    projectinfolist.Item(rowindex).Dirty = True


End Sub

Protected Sub TextBox7_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim txtbx As TextBox = TryCast(sender, TextBox)
    Dim row As GridViewRow = txtbx.Parent.NamingContainer
    Dim rowindex As Integer = row.RowIndex
    projectinfolist.Item(rowindex).ProjectModifiedBy = txtbx.Text
    projectinfolist.Item(rowindex).Dirty = True


End Sub

Protected Sub TextBox8_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim txtbx As TextBox = TryCast(sender, TextBox)
    Dim row As GridViewRow = txtbx.Parent.NamingContainer
    Dim rowindex As Integer = row.RowIndex
    projectinfolist.Item(rowindex).DBServer = txtbx.Text
    projectinfolist.Item(rowindex).Dirty = True


End Sub

Protected Sub TextBox9_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim txtbx As TextBox = TryCast(sender, TextBox)
    Dim row As GridViewRow = txtbx.Parent.NamingContainer
    Dim rowindex As Integer = row.RowIndex
    projectinfolist.Item(rowindex).DBName = txtbx.Text
    projectinfolist.Item(rowindex).Dirty = True


End Sub

Protected Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button3.Click
    For Each row As GridViewRow In GridView1.Rows
        Dim tb1 As TextBox = DirectCast(row.FindControl("TextBox1"), TextBox)
        tb1.ReadOnly = False
        tb1.BorderColor = Drawing.Color.BurlyWood
        Dim tb2 As TextBox = DirectCast(row.FindControl("TextBox2"), TextBox)
        tb2.ReadOnly = False
        tb2.BorderColor = Drawing.Color.BurlyWood

        Dim cl As AjaxControlToolkit.CalendarExtender = DirectCast(row.FindControl("CalendarExtender1"), AjaxControlToolkit.CalendarExtender)
        cl.Enabled = True

        Dim tb5 As TextBox = DirectCast(row.FindControl("TextBox5"), TextBox)
        tb5.ReadOnly = False
        tb5.BorderColor = Drawing.Color.BurlyWood
        Dim tb6 As TextBox = DirectCast(row.FindControl("TextBox6"), TextBox)
        tb6.ReadOnly = False
        tb6.BorderColor = Drawing.Color.BurlyWood
        Dim tb7 As TextBox = DirectCast(row.FindControl("TextBox7"), TextBox)
        tb7.ReadOnly = False
        tb7.BorderColor = Drawing.Color.BurlyWood
        Dim tb8 As TextBox = DirectCast(row.FindControl("TextBox8"), TextBox)
        tb8.ReadOnly = False
        tb8.BorderColor = Drawing.Color.BurlyWood
        Dim tb9 As TextBox = DirectCast(row.FindControl("TextBox9"), TextBox)
        tb9.ReadOnly = False
        tb9.BorderColor = Drawing.Color.BurlyWood
    Next
    Button2.Enabled = True
End Sub

End Class

Imports Microsoft.VisualBasic

Public Class projectinfoclass


Public _Projectname As String

Public Property Projectname() As String
    Get
        Return _Projectname
    End Get
    Set(ByVal value As String)
        _Projectname = value
    End Set
End Property

Public _projectmodifiedDate As String
Public Property projectmodifiedDate() As String
    Get
        Return _projectmodifiedDate
    End Get
    Set(ByVal value As String)
        _projectmodifiedDate = value
    End Set
End Property

Public _projectid As String
Public Property projectId() As String
    Get
        Return _projectid
    End Get
    Set(ByVal value As String)
        _projectid = value
    End Set
End Property

Public _Recordupdateddate As String
Public Property Recordupdateddate() As String
    Get
        Return _Recordupdateddate
    End Get
    Set(ByVal value As String)
        _Recordupdateddate = value
    End Set
End Property

Public _ProjectLocation As String
Public Property ProjectLocation() As String
    Get
        Return _ProjectLocation
    End Get
    Set(ByVal value As String)
        _ProjectLocation = value
    End Set
End Property

Public _LocationServerName As String
Public Property LocationServerName() As String
    Get
        Return _LocationServerName
    End Get
    Set(ByVal value As String)
        _LocationServerName = value
    End Set
End Property

Public _ProjectModifiedBy As String
Public Property ProjectModifiedBy() As String
    Get
        Return _ProjectModifiedBy
    End Get
    Set(ByVal value As String)
        _ProjectModifiedBy = value
    End Set
End Property

Public _DBServer As String
Public Property DBServer() As String
    Get
        Return _DBServer
    End Get
    Set(ByVal value As String)
        _DBServer = value
    End Set
End Property

Public _DBName As String
Public Property DBName() As String
    Get
        Return _DBName
    End Get
    Set(ByVal value As String)
        _DBName = value
    End Set
End Property



Public _Dirty As Boolean
Public Property Dirty() As Boolean
    Get
        Return _Dirty
    End Get
    Set(ByVal value As Boolean)
        _Dirty = value
    End Set
End Property