如何使编辑在gridview中正常工作 [英] How do I get the edit to work properly in a gridview

问题描述

谁能让我摆脱这个麻烦的嵌套Gridview ...







我有两个嵌套Gridview的问题

1.我必须单击编辑链接两次以使其触发

2.当它触发时，编辑字段为空而不是包含要编辑的文本

删除和ADD操作无问题地工作



这是嵌套gridview的aspx代码：

<％ - 此网格包含所有子元素 - ％> 
< asp：TemplateField> 
< ItemTemplate> 
 ...< tr> 
 ......< td colspan =100％> 
 ......< div id =div<％＃Eval（BulletGroupID）％> class =gv-bulletItems> 
 ......... 
 .........< asp：GridView ID =gvBulletItemsrunat =server
 ..... ....... AllowPaging =TrueAllowSorting =trueBackColor =WhiteWidth =100％Font-Size =X-Small
 ......... ... AutoGenerateColumns =falseFont-Names =VerdanaDataKeyNames =BulletGroupIDShowFooter =true
 ............ BorderStyle =DoubleBorderColor =＃ 0083C1
 ............ OnPageIndexChanging =gvBulletItems_OnPageIndexChanging
 ............ OnRowUpdating =gvBulletItems_OnRowUpdating
 .. .......... OnRowCommand =gvBulletItems_OnRowCommand
 ............ OnRowEditing =gvBulletItems_OnRowEditing
 .......... .. OnRowCancelingEdit =gvBulletItems_OnRowCancelingEdit
 ............ OnRowDataBound =gvBulletItems_OnRowDataBound
 ............ OnRowDeleting =gvBulletItems_OnRowDeleting> ; 
 ............ 
 ............< RowStyle BackColor =LightCyan/> 
 ............< AlternatingRowStyle BackColor =White/> 
 ............< HeaderStyle BackColor =＃0083C1Fo​​reColor =White/> 
 ............< FooterStyle BackColor =PaleTurquoise/> 
 ............< Columns> 
 ...............< asp：TemplateField HeaderText =BulletGroup IDVisible =FalseSortExpression =BulletGroupID> 
 ...............< ItemTemplate> 
 ..................< asp：Label ID =lblBulletGroupIDText ='<％＃Eval（BulletGroupID）％>'可见=Falserunat =server>< / asp：Label> 
 ...............< / ItemTemplate> 
 
 ...............< / asp：TemplateField> 
 ...............< asp：TemplateField HeaderText =BulletGroup IDVisible =FalseSortExpression =BulletID> 
 ...............< ItemTemplate> 
 ..................< asp：Label ID =lblBulletIDText ='<％＃Eval（BulletID）％>'可见=Falserunat =server>< / asp：Label> 
 ...............< / ItemTemplate> 
 
 ...............< / asp：TemplateField> 
 ...............< asp：TemplateField HeaderText =List OrderSortExpression =ListOrder> 
 ...............< ItemTemplate><％＃Eval（ListOrder）％> < / ItemTemplate中> 
 ...............< EditItemTemplate> 
 ..................< asp：TextBox ID =txtBiListOrderText ='<％＃Eval（ListOrder）％>'runat = 服务器 >< / ASP：文本框> 
 ...............< / EditItemTemplate> 
 ...............< FooterTemplate> 
 ..................< asp：TextBox ID =txtBiListOrderText =runat =server>< / asp：TextBox> 
 ...............< / FooterTemplate> 
 ...............< / asp：TemplateField> 
 
 ...............< asp：TemplateField HeaderText =Bullet TextSortExpression =DisplayText> 
 ...............< ItemTemplate><％＃Eval（DisplayText）％>< / ItemTemplate> 
 ...............< EditItemTemplate> 
 ..................< asp：TextBox ID =txtBiDisplayTextText ='<％＃Eval（DisplayText）％>'runat = 服务器 >< / ASP：文本框> 
 ...............< / EditItemTemplate> 
 ...............< FooterTemplate> 
 ..................< asp：TextBox ID =txtBiDisplayTextText =runat =server>< / asp：TextBox> 
 ...............< / FooterTemplate> 
 ...............< / asp：TemplateField> 
 ...............< asp：CommandField HeaderText =EditShowEditButton =True/> 
 ...............< asp：CommandField HeaderText =删除ShowDeleteButton =True/> 
 ...............< asp：TemplateField> 
 ...............< FooterTemplate> 
 ..................< asp：LinkBut​​ton ID =linkAddBulletItemCommandName =AddBulletItemrunat =server>添加< / asp：LinkBut​​ton> ; 
 ...............< / FooterTemplate> 
 ...............< / asp：TemplateField> 
 ............< / Columns> 
 .........< / asp：GridView> 
 ......< / div> 
 ......< / td> 
 ...< / tr> 
< / ItemTemplate> 
< / asp：TemplateField> 

FYI父网格视图没有任何这些问题



我尝试了什么：



单步执行代码，并排比较parent gridview

解决方案

Quote：

1。我必须单击编辑链接两次以使其触发

如果您绑定 GridView 在 Page_Load 事件中，然后确保在中包装您的代码以进行绑定！IsPostback 块：

  protected   void  Page_Load（ object  sender，EventArgs e）
 {
  if （！Page.IsPostBack）
 {
  //  您在此处绑定GridView的代码 
} 
} 

Quote：

2。当它触发时，编辑字段为空白而不是包含要编辑的文本

删除和ADD操作无问题地工作

确保在设置 RowEditing 重新填充 GridView > NewEditIndex 。例如：

  protected   void  GridViewEmployee_RowEditing （ object  sender，GridViewEditEventArgs e）
 {
 GridViewEmployee.EditIndex = e.NewEditIndex;  //  转为编辑模式 
  //  使用数据源重新绑定GridView以在编辑模式下显示数据 
 
} 

Who will rid me of this troublesome nested Gridview...



I have two issues with the nested Gridview
1. I have to click the Edit Link twice to get it to fire
2. When it does fire the edit fields are blank instead of containing the text to be edited
the Delete and the ADD actions work without issue

Here is the aspx code for the nested gridview:

<%-- This grid holds all the child elements --%>
<asp:TemplateField>
  <ItemTemplate>
... <tr>
......<td colspan="100%">
...... <div id="div<%# Eval("BulletGroupID") %>" class="gv-bulletItems" >
.........  
.........  <asp:GridView ID="gvBulletItems" runat="server"
............ AllowPaging="True" AllowSorting="true" BackColor="White" Width="100%" Font-Size="X-Small"
............ AutoGenerateColumns="false" Font-Names="Verdana" DataKeyNames="BulletGroupID" ShowFooter="true"
............ BorderStyle="Double" BorderColor="#0083C1"
............ OnPageIndexChanging="gvBulletItems_OnPageIndexChanging" 
............ OnRowUpdating="gvBulletItems_OnRowUpdating"
............ OnRowCommand="gvBulletItems_OnRowCommand" 
............ OnRowEditing="gvBulletItems_OnRowEditing"
............ OnRowCancelingEdit="gvBulletItems_OnRowCancelingEdit"
............ OnRowDataBound="gvBulletItems_OnRowDataBound" 
............ OnRowDeleting="gvBulletItems_OnRowDeleting">
............ 
............ <RowStyle BackColor="LightCyan" />
............ <AlternatingRowStyle BackColor="White" />
............ <HeaderStyle BackColor="#0083C1" ForeColor="White" />
............ <FooterStyle BackColor="PaleTurquoise" />
............ <Columns>
...............<asp:TemplateField HeaderText="BulletGroup ID" Visible="False" SortExpression="BulletGroupID">
...............   <ItemTemplate>
..................  <asp:Label ID="lblBulletGroupID" Text='<%# Eval("BulletGroupID") %>' Visible="False" runat="server"></asp:Label>
...............   </ItemTemplate>

...............</asp:TemplateField>
...............<asp:TemplateField HeaderText="BulletGroup ID" Visible="False" SortExpression="BulletID">
...............   <ItemTemplate>
..................  <asp:Label ID="lblBulletID" Text='<%# Eval("BulletID") %>' Visible="False" runat="server"></asp:Label>
...............   </ItemTemplate>

...............</asp:TemplateField>
...............<asp:TemplateField HeaderText="List Order" SortExpression="ListOrder">
...............   <ItemTemplate><%# Eval("ListOrder")%>  </ItemTemplate>
...............   <EditItemTemplate>
..................  <asp:TextBox ID="txtBiListOrder" Text='<%# Eval("ListOrder")%>' runat="server"></asp:TextBox>
...............   </EditItemTemplate>
...............   <FooterTemplate>
..................  <asp:TextBox ID="txtBiListOrder" Text="" runat="server"></asp:TextBox>
...............   </FooterTemplate>
...............</asp:TemplateField>

...............<asp:TemplateField HeaderText="Bullet Text" SortExpression="DisplayText">
...............   <ItemTemplate><%# Eval("DisplayText")%></ItemTemplate>
...............   <EditItemTemplate>
..................  <asp:TextBox ID="txtBiDisplayText" Text='<%# Eval("DisplayText")%>'  runat="server"></asp:TextBox>
...............   </EditItemTemplate>
...............   <FooterTemplate>
..................  <asp:TextBox ID="txtBiDisplayText" Text="" runat="server"></asp:TextBox>
...............   </FooterTemplate>
...............</asp:TemplateField>
...............<asp:CommandField HeaderText="Edit" ShowEditButton="True" />
...............<asp:CommandField HeaderText="Delete" ShowDeleteButton="True"/>
...............<asp:TemplateField >
...............   <FooterTemplate>
..................  <asp:LinkButton ID="linkAddBulletItem" CommandName="AddBulletItem" runat="server">Add</asp:LinkButton>
...............   </FooterTemplate>
...............</asp:TemplateField>
............ </Columns>
.........  </asp:GridView>
...... </div>
......</td>
... </tr>
  </ItemTemplate>
</asp:TemplateField>

FYI the parent gridview does not have any of these issues

What I have tried:

Stepping through the code, side by side comparision of the parent gridview

解决方案

Quote:

1. I have to click the Edit Link twice to get it to fire

If you are binding your GridView at Page_Load event, then make sure to wrap your code for binding within !IsPostback block:

protected void Page_Load(object sender, EventArgs e)
{
        if (!Page.IsPostBack)
        {
            //Your code for binding your GridView here
        }
}

Quote:

2. When it does fire the edit fields are blank instead of containing the text to be edited
the Delete and the ADD actions work without issue

Make sure that you are repopulating your GridView at RowEditing right after you set the NewEditIndex. For example:

protected void GridViewEmployee_RowEditing(object sender, GridViewEditEventArgs e)
{
    GridViewEmployee.EditIndex = e.NewEditIndex; // turn to edit mode
    // Rebind your GridView with the datasource here to show the data in edit mode

}

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