GridView的编辑按钮需要2次点击 [英] GridView Edit Button Requires 2 Clicks

问题描述

当在GridView控件pressing编辑按钮，显示编辑模板后，才2次点击。
而另一个问题：现场编辑的值最初显示在GridView控件，但不是在编辑模板

天冬氨酸code：

 ＆LT; ASP：GridView控件ID =GridView1=服务器AllowPaging =真AllowSorting =真
的AutoGenerateColumns =假CELLPADDING =4OnRowEditing =EditRow
OnRowCancelingEdit =CancelEditRow的DataKeyNames =AREA的DataMember =默认视图＆GT;  ＆LT;柱体和GT;
     ＆LT; ASP：BoundField的数据字段=AREA的HeaderText =AREA只读=真
                                        SORTEX pression =AREA/＆GT;      ＆LT; ASP：的TemplateField的HeaderText =LEADER_USERSORTEX pression =LEADER_USER＆GT;
                     ＆LT;＆ItemTemplate中GT;＆LT;％＃的eval（leader_user）％＆GT;＆LT; / ItemTemplate中＆GT;
                      ＆LT;＆EditItemTemplate的GT;
                          ＆LT; ASP：文本框ID =txtleaderuser=服务器文本='＆LT;％＃的eval（leader_user）％＆GT;/＆GT;
                      ＆LT; / EditItemTemplate中＆GT;
       ＆LT; / ASP：的TemplateField＆GT;       ＆LT; ASP：的TemplateField＆GT;
           ＆LT;＆ItemTemplate中GT;
                  ＆LT; ASP：ImageButton的ID =editButton=服务器的CommandName =编辑
                                                的ImageUrl =图片/ pencil1.png文本=编辑工具提示=编辑/＆GT;
            ＆LT; / ItemTemplate中＆GT;
             ＆LT;＆EditItemTemplate的GT;
                   ＆LT; ASP：按钮的ID =BtnUpdate=服务器的CommandName =更新
                                                文本=更新/＆GT;
                   ＆LT; ASP：按钮的ID =BtnCancel=服务器的CommandName =取消
                                                文本=取消/＆GT;
              ＆LT; / EditItemTemplate中＆GT;
             ＆LT; / ASP：的TemplateField＆GT;      ＆LT; /专栏＆GT;
    ＆LT; / ASP：GridView的＆GT;
 

VB code：

 保护小组EditRow（BYVAL发件人为对象，BYVAL E上GridViewEditEventArgs）
        GridView1.EditIndex = e.NewEditIndex
        GridView1.DataSource = SqlDataSource1
        如果不是那么的IsPostBack
        GridView1.DataSourceID = SqlDataSource1.ID
        GridView1.DataBind（）
        '万一
 结束小组保护小组的Page_Load（BYVAL发件人为对象，BYVAL E上System.EventArgs）把手Me.Load        SqlDataSource1.SelectCommand =SQL
        SqlDataSource1.ConnectionString =我康恩字符串        如果没有的IsPostBack然后
            GridView1.DataSourceID = SqlDataSource1.ID
            GridView1.DataSource = SqlDataSource1
            GridView1.DataBind（）
        万一
    结束小组
 

解决方案

我认为你需要调用的DataBind 来重新绑定数据源。您已经评价出来，但它看起来像你在的IsPostBack 块，这将仅在初始页面加载执行了吧。

尝试：

 保护小组EditRow（BYVAL发件人为对象，BYVAL E上GridViewEditEventArgs）
    GridView1.EditIndex = e.NewEditIndex
    GridView1.DataSource = SqlDataSource1
    GridView1.DataBind（）
结束小组
 

When pressing edit button in gridview, edit template is displayed only after 2 clicks. And another problem: Value of the field to edit is displayed in gridview initially, but not in edit template.

Asp code:

<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 code:

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

解决方案

I think you need to call DataBind to rebind the data source. You've commented it out, but it looks like you had it in a IsPostBack block, which would only execute on the initial page load.

Try:

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

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