GridView删除确认MSG错误 [英] GridView Delete Confirm MSG Error

问题描述

HI！



我有一个带有两个命令字段的Gridview（删除，编辑）。如果用户点击删除，我想获得确认消息，它工作正常，但如果他点击更新，我会收到错误消息。



代码是：

  if （e.Row.RowType == DataControlRowType.DataRow）
 {
  //  引用Delete LinkBut​​ton  
 LinkBut​​ton db =（LinkBut​​ton）e.Row .Cells [ 5 ]。控制[ 0 ]; 
 db.OnClientClick =   return confirm（'Biztos benne，hogytörölnikívánjaakiválasztottcélt？'）; ; 
} 

和gridview是：



< pre lang =xml> < asp：GridView ID = GridView1 runat = server AlternatingRowStyle-CssClass = gridview_alter

AutoGenerateColumns = False EmptyDataText = GridLines = 无 OnRowCancelingEdit = RowCancelingEdit

< span class =code-attribute> OnRowDataBound = GridView1_RowDataBound OnRowDeleting = RowDeleting OnRowEditing = RowEditing

OnRowUpdating = RowUpdating ShowHeaderWhenEmpty = True 宽度 = 820px >
< AlternatingRowStyle CssClass = gridview_alter / >
< 列 >
< asp：TemplateField HeaderText < span class =code-keyword> = Leírás 可见 = false / >
< asp：BoundField DataField = 描述 HeaderStyle-Width = 150 HeaderText = Leírás HtmlEncode = false >
< HeaderStyle 宽度 = 150px / >
< / asp：BoundField >
< asp：BoundField HeaderText = Kritérium DataField = IndexNumber / >
< asp：BoundField DataField = 重量 HeaderStyle-Width = 50 HeaderText = Súly >
< HeaderStyle 宽度 = 50px / >
< / asp：BoundField >
< asp：TemplateField HeaderStyle-Width = 100 HeaderText = Céltípusa >
< ItemTemplate >
< asp：标签 ID = lblGoalType runat = 服务器 > < / asp：标签 >
< / ItemTemplate >
< HeaderStyle 宽度 =< /跨度> < span class =code-keyword> 100px / >
< / asp：TemplateField >
< asp：CommandField DeleteText = Törlés HeaderStyle-Width = 60 ShowDeleteButton = true >
< HeaderStyle 宽度 = 60px / >
< / asp：CommandField >
< asp：CommandField CancelText = Mégse DeleteText = Törlés EditText = Szerkesztés

< span class =code-attribute> HeaderStyle-Width = 60 ShowEditButton = True UpdateText = Frissítés

ValidationGroup = Leírás，Súly >
< HeaderStyle 宽度 = 60px / >
< / asp：CommandField >
< /列 >
< / asp：GridView > < /跨度>

我在这里得到错误：

LinkBut​​ton db =（LinkBut​​ton）e.Row.Cells [5] .Controls [0];

，错误是：

指定的参数超出了有效值的范围。

解决方案

我找到了解决方案：

  foreach （DataControlFieldCell cell  in  e.Row.Cells）
 {
  //  检查一行中的所有单元格 
  foreach （控制控件  cell.Controls ）
 {
  //  必须在此处使用LinkBut​​ton而不是ImageButton  
  //  如果你有链接（不是图像）作为命令按钮。 
 LinkBut​​ton button = control < span class =code-keyword> as  LinkBut​​ton; 
  if （button！=  null && button.CommandName ==  删除）
  //  < span class =code-comment>添加删除确认 
 button.OnClientClick =   return确认（'Biztos benne，hogytörölnikívánjaakiválasztottcélt？'）;; 
} 
} 

无论如何，每个阅读它的人都希望它可以帮助任何遇到同样问题的人。

尝试

 <   asp：TemplateField     ShowHeader   =  False >  
 <   ItemTemplate  >  
 < ;   asp：ImageButton     ID   =  DeleteButton    runat   = 服务器    ImageUrl   = 〜/ image.png  
   
                                           CommandName   = 删除    OnClientClick   = 返回确认（'您确定要删除吗？'）;  
   
                                      < span class =code-attribute>     AlternateText   = 删除    /  >  
 <   / ItemTemplate  >  
 <   / asp：TemplateField  >  

这是示例 [ ^ ]确认框。

HI!

I have a Gridview with two command fields(Delete, Edit). I want to get a Confirm msg if the user clicks on delete, it works fine, but if he clicks on update, i get an error msg.

The code is:

if (e.Row.RowType == DataControlRowType.DataRow)
            {
                // reference the Delete LinkButton
                LinkButton db = (LinkButton)e.Row.Cells[5].Controls[0];
                db.OnClientClick = "return confirm('Biztos benne, hogy törölni kívánja a kiválasztott célt?');";
            }

and the gridview is:

<asp:GridView ID="GridView1" runat="server" AlternatingRowStyle-CssClass="gridview_alter"

                       AutoGenerateColumns="False" EmptyDataText=" " GridLines="None" OnRowCancelingEdit="RowCancelingEdit"

                       OnRowDataBound="GridView1_RowDataBound" OnRowDeleting="RowDeleting" OnRowEditing="RowEditing"

                       OnRowUpdating="RowUpdating" ShowHeaderWhenEmpty="True" Width="820px">
                       <AlternatingRowStyle CssClass="gridview_alter" />
                       <Columns>
                           <asp:TemplateField HeaderText="Leírás" Visible="false" />
                           <asp:BoundField DataField="Description" HeaderStyle-Width="150" HeaderText="Leírás" HtmlEncode="false">
                               <HeaderStyle Width="150px" />
                           </asp:BoundField>
                           <asp:BoundField HeaderText="Kritérium" DataField="IndexNumber" />
                           <asp:BoundField DataField="Weight" HeaderStyle-Width="50" HeaderText="Súly">
                               <HeaderStyle Width="50px" />
                           </asp:BoundField>
                           <asp:TemplateField HeaderStyle-Width="100" HeaderText="Cél típusa">
                               <ItemTemplate>
                                   <asp:Label ID="lblGoalType" runat="server"></asp:Label>
                               </ItemTemplate>
                               <HeaderStyle Width="100px" />
                           </asp:TemplateField>
                           <asp:CommandField DeleteText="Törlés" HeaderStyle-Width="60" ShowDeleteButton="true">
                               <HeaderStyle Width="60px" />
                           </asp:CommandField>
                                       <asp:CommandField CancelText="Mégse" DeleteText="Törlés" EditText="Szerkesztés"

                                           HeaderStyle-Width="60" ShowEditButton="True" UpdateText="Frissítés"

                                           ValidationGroup="Leírás, Súly">
                               <HeaderStyle Width="60px" />
                           </asp:CommandField>
                       </Columns>
                   </asp:GridView>

I get the error here:
LinkButton db = (LinkButton)e.Row.Cells[5].Controls[0];
and the error is:
Specified argument was out of the range of valid values.

解决方案

I found the solution:

foreach (DataControlFieldCell cell in e.Row.Cells)
{
    // check all cells in one row
    foreach (Control control in cell.Controls)
    {
        // Must use LinkButton here instead of ImageButton
        // if you are having Links (not images) as the command button.
        LinkButton button = control as LinkButton;
        if (button != null && button.CommandName == "Delete")
            // Add delete confirmation
            button.OnClientClick = "return confirm('Biztos benne, hogy törölni kívánja a kiválasztott célt?');";
    }
}

Anyway, thx everybody who read it, and hopefully, it will help anybody who has the same problem.

Try

<asp:TemplateField ShowHeader="False">
            <ItemTemplate>
                <asp:ImageButton ID="DeleteButton" runat="server" ImageUrl="~/image.png"

                    CommandName="Delete" OnClientClick="return confirm('Are you sure you want to delete?');"

                    AlternateText="Delete" />
            </ItemTemplate>
        </asp:TemplateField>

Here is an example[^] of the confirmation box.

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