Specific methods for customizing the delete operation of the GridView

First, the front-end code is as follows:

Copy codeThe Code is as follows:
<Asp: GridView ID = "gridViewDxjk" CssClass = "gridview" runat = "server" AllowPaging = "True"
DataKeyNames = "P_ID" AutoGenerateColumns = "False"
RowStyle-HorizontalAlign = "Center" BorderWidth = "1px" PageSize = "17"
Onrowdeleting = "gridViewDxjk_RowDeleting"
OnRowDataBound = "gridViewDxjk_RowDataBound"
Onpageindexchanging = "gridViewDxjk_PageIndexChanging">
<HeaderStyle CssClass = "head"/>
<PagerStyle CssClass = "pager"/>
<RowStyle CssClass = "row"/>
<EditRowStyle CssClass = "editrow"/>
<AlternatingRowStyle CssClass = "altrow"/>
<EmptyDataRowStyle CssClass = "empty"/>
<Columns>
<Asp: HyperLinkField HeaderText = "edit" ControlStyle-Width = "50" DataNavigateUrlFields = "P_ID" DataNavigateUrlFormatString = "smsModify. aspx? Id = {0} "Text =" edit ">
<ControlStyle Width = "50px"> </ControlStyle> </asp: HyperLinkField>
<Asp: CommandField ShowDeleteButton = "true" DeleteText = "delete">
<ControlStyle Width = "50px"> </ControlStyle> </asp: CommandField>
<Asp: BoundField DataField = "P_ID" HeaderText = "id" SortExpression = "P_ID" ItemStyle-HorizontalAlign = "Center" Visible = "False">
<ItemStyle HorizontalAlign = "Center"> </ItemStyle> </asp: BoundField>
<Asp: BoundField DataField = "P_NAME" HeaderText = "name" SortExpression = "P_NAME"/>
<Asp: BoundField DataField = "P_Type" HeaderText = "notification method" SortExpression = "P_Type" ItemStyle-HorizontalAlign = "Center">
<ItemStyle HorizontalAlign = "Center"> </ItemStyle> </asp: BoundField>
<Asp: BoundField DataField = "P_Fzr" HeaderText = "name" SortExpression = "P_Fzr" ItemStyle-HorizontalAlign = "Center">
<ItemStyle HorizontalAlign = "Center"> </ItemStyle> </asp: BoundField>
<Asp: BoundField DataField = "P_tel" HeaderText = "Notification mobile phone" SortExpression = "P_tel" ItemStyle-HorizontalAlign = "Center">
<ItemStyle HorizontalAlign = "Center"> </ItemStyle> </asp: BoundField>
<Asp: BoundField DataField = "P_jg" HeaderText = "notification interval (hours)" SortExpression = "P_jg" ItemStyle-HorizontalAlign = "Center">
<ItemStyle HorizontalAlign = "Center"> </ItemStyle> </asp: BoundField>
<Asp: BoundField DataField = "P_on" HeaderText = "enable" SortExpression = "P_on" ItemStyle-HorizontalAlign = "Center">
<ItemStyle HorizontalAlign = "Center"> </ItemStyle> </asp: BoundField>
<Asp: BoundField DataField = "P_lasttime" HeaderText = "last sending time" SortExpression = "P_lasttime" ItemStyle-HorizontalAlign = "Center">
<ItemStyle HorizontalAlign = "Center"> </ItemStyle> </asp: BoundField>
<Asp: BoundField DataField = "P_memo" HeaderText = "Remarks" SortExpression = "P_memo" ItemStyle-HorizontalAlign = "Center">
<ItemStyle HorizontalAlign = "Center"> </ItemStyle> </asp: BoundField>
</Columns>
<EmptyDataTemplate>
No data!
</EmptyDataTemplate>
<PagerTemplate>
<Table width = "100%" class = "gvPage" style = "font-size: 12px;">
<Tr>
<Td style = "text-align: right">
<Asp: Label ID = "lblPageIndex" runat = "server" Text = '<% # (GridView) Container. parent. parent ). pageIndex + 1%> '> </asp: Label> page
/Total <asp: Label ID = "lblPageCount" runat = "server" Text = '<% # (GridView) Container. parent. parent ). pageCount %> '> </asp: Label> page
<Asp: LinkButton ID = "LinkButtonFirstPage" runat = "server" CommandArgument = "First" CommandName = "Page" Visible = "<% # (GridView) Container. namingContainer ). pageIndex! = 0%> "> homepage </asp: LinkButton>
<Asp: LinkButton ID = "LinkButtonPreviousPage" runat = "server" CommandArgument = "Prev" CommandName = "Page" Visible = "<% # (GridView) Container. namingContainer ). pageIndex! = 0%> "> previous page </asp: LinkButton>
<Asp: LinkButton ID = "LinkButtonNextPage" runat = "server" CommandArgument = "Next" CommandName = "Page" Visible = "<% # (GridView) Container. namingContainer ). pageIndex! = (GridView) Container. NamingContainer). PageCount-1%> "> next page </asp: LinkButton>
<Asp: LinkButton ID = "LinkButtonLastPage" runat = "server" CommandArgument = "Last" CommandName = "Page" Visible = "<% # (GridView) Container. namingContainer ). pageIndex! = (GridView) Container. NamingContainer). PageCount-1%> "> last page </asp: LinkButton>
<Asp: TextBox ID = "txtNewPageIndex" runat = "server" Text = '<% # (GridView) Container. parent. parent ). pageIndex + 1%> 'width = "20px" AutoPostBack = "true"> </asp: TextBox>
<Asp: LinkButton ID = "btnGoEx" runat = "server" CommandArgument = "GO" CommandName = "Page" Text = "GO" OnClick = "btnGoEx_Click"> </asp: linkButton>
</Td>
</Tr>
</Table>
</PagerTemplate>
</Asp: GridView>

The confirmation box before deletion needs to pop up at the backend. So what do we need to do in RowDataBound? In addition, to delete a row, you must trigger the RowDeleting event. The specific code is as follows:

Copy codeThe Code is as follows:
// Delete an alarm
Protected void gridViewDxjk_RowDeleting (object sender, GridViewDeleteEventArgs e)
{
String key = gridViewDxjk. DataKeys [e. RowIndex]. Value. ToString ();
Bool flag = bll. Delete (Int32.Parse (key ));
If (flag)
NXT_WLService.App_Code.JScript.Alert ("deleted successfully! ", This );
Else
NXT_WLService.App_Code.JScript.Alert ("deletion failed! ", This );
}

Protected void gridViewDxjk_RowDataBound (object sender, GridViewRowEventArgs e)
{
If (e. Row. RowType = DataControlRowType. DataRow)
{
LinkButton btn = (LinkButton) e. Row. Cells [1]. Controls [0];
If (btn. Text. Equals ("delete") // a message is displayed when the cursor is exceeded.
Btn. OnClientClick = "if (confirm ('Are you sure you want to delete? ') Javascript :__ doPostBack ('gridviewdxjk', 'delete $ "+ e. Row. RowIndex. ToString () +" '); else return false ;";
}
}