asp.net – GridView编辑按钮需要2次点击

发布时间：2020-12-16 07:24:42 所属栏目：asp.Net 来源：网络整理

导读：在gridview中按编辑按钮时,仅在单击2次后才会显示编辑模板. 另一个问题：要编辑的字段的值最初显示在gridview中,但不显示在编辑模板中. Asp代码： asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns=

在gridview中按编辑按钮时,仅在单击2次后才会显示编辑模板.
另一个问题：要编辑的字段的值最初显示在gridview中,但不显示在编辑模板中.

Asp代码：

<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" 
AutoGenerateColumns="False" CellPadding="4" OnRowEditing="EditRow" 
OnRowCancelingEdit="CancelEditRow" DataKeyNames="AREA" DataMember="DefaultView">

  <Columns>
     <asp:BoundField DataField="AREA" HeaderText="AREA" ReadOnly="True" 
                                        SortExpression="AREA" />                                   

      <asp:TemplateField HeaderText="LEADER_USER" SortExpression="LEADER_USER">
                     <ItemTemplate><%#Eval("leader_user")%></ItemTemplate>
                      <EditItemTemplate>
                          <asp:TextBox ID="txtleaderuser" runat="server" Text='<%#Eval("leader_user")%>'/>
                      </EditItemTemplate>
       </asp:TemplateField>

       <asp:TemplateField>                                    
           <ItemTemplate>
                  <asp:ImageButton ID="editButton" runat="server" CommandName="Edit" 
                                                ImageUrl="images/pencil1.png" Text="Edit" ToolTip="Edit" />
            </ItemTemplate>
             <EditItemTemplate>
                   <asp:Button ID="BtnUpdate" runat="server" CommandName="Update" 
                                                Text="Update" />
                   <asp:Button ID="BtnCancel" runat="server" CommandName="Cancel" 
                                                Text="Cancel" />
              </EditItemTemplate>
             </asp:TemplateField>

      </Columns>
    </asp:GridView>

vb代码：

Protected Sub EditRow(ByVal sender As Object,ByVal e As GridViewEditEventArgs)
        GridView1.EditIndex = e.NewEditIndex
        GridView1.DataSource = SqlDataSource1
        'If Not IsPostBack Then
        'GridView1.DataSourceID = SqlDataSource1.ID
        'GridView1.DataBind()
        'End If
 End Sub

Protected Sub Page_Load(ByVal sender As Object,ByVal e As System.EventArgs) Handles Me.Load

        SqlDataSource1.SelectCommand = "SQL"
        SqlDataSource1.ConnectionString = "My conn string"

        If Not IsPostBack Then
            'GridView1.DataSourceID = SqlDataSource1.ID
            GridView1.DataSource = SqlDataSource1
            GridView1.DataBind()
        End If    


    End Sub

解决方法

我认为您需要调用DataBind来重新绑定数据源.你已经对它进行了评论,但看起来你在IsPostBack块中有它,它只能在初始页面加载时执行.

尝试：

Protected Sub EditRow(ByVal sender As Object,ByVal e As GridViewEditEventArgs)
    GridView1.EditIndex = e.NewEditIndex
    GridView1.DataSource = SqlDataSource1
    GridView1.DataBind()        
End Sub

（编辑：李大同）

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