Confirm before deleting data is a very friendly approach. In this article, we discuss how to use the TemplateColumn and Button server controls.
Deleteit.aspx
code:
<% @ Page language = "vb" autoeventwireup = "false" codebehind = "deleteit.aspx.vb" inherits = "aspxweb.deleteit"%>
Webform1 </ Title></p>
<p><meta content = "Microsoft Visual Studio .NET 7.0" Name = "Generator"></p>
<p><meta content = "Visual Basic 7.0" Name = "Code_Language"></p>
<p><meta content = "javascript" name = "vs_defaultclientscript"></p>
<p><meta content = "</p>
<p>http://schemas.microsoft.com/intellisense/ie5 "name =" vs_targetschema "></p>
<p></ HEAD></p>
<p><body></p>
<p><asp: label id = "label1" runat = "server"> </ asp: label></p>
<p><form runat = "server" id = "form1"></p>
<p><ask: DataGrid ID = "MyDataGrid" onItemcreated = "DataGrid_Itemcreated"</p>
<p>Datakeyfield = "title" autogeneratecolumns = "false" runat = "server"></p>
<p><Columns></p>
<p><ask: templatecolumn></p>
<p><Itemtemplate></p>
<p><ask = "btndelete" runat = "server"> </ asp: button></p>
<p></ Itemtemplate></p>
<p></ asp: templateColumn></p>
<p><asp: boundcolumn datafield = "title"> </ asp: boundcolumn></p>
<p><ask: boundcolumn datafield = "createDate" dataformatstring = "{0: YYYY-M-D}"> </ asp: boundcolumn></p>
<p></ Columns></p>
<p></ ask: DataGrid></p>
<p></ form></p>
<p></ body></p>
<p></ Html></p>
<p>Postcutive code: deleteit.aspx.vb</p>
<p>code:</p>
<p>Imports System.Webimports System.collections</p>
<p>Imports system</p>
<p>Imports system.data</p>
<p>Imports system.data.oledb</p>
<p>Imports System.Web.ui.WebControls</p>
<p>Public Class Deleteit</p>
<p>Inherits System.Web.ui.page</p>
<p>Protected Withevents Label1 As System.Web.ui.WebControls.label</p>
<p>Protected withevents mydatagrid as system.web.ui.webcontrols.datagrid</p>
<p>#Region "The code" of the web form designer "</p>
<p>'This call is required for the web form designer.</p>
<p><System.diagnostics.debuggerstepthrough ()> private subinitializecomponent ()</p>
<p>End Sub</p>
<p>Private sub page_init (byval sender as system.object, byval e as system.eventargs) Handles mybase.init</p>
<p>'Codegen: This method call is necessary for the web form designer</p>
<p>'Don't modify it using the code editor.</p>
<p>InitializeComponent ()</p>
<p>End Sub</p>
<p>#End region</p>
<p>SUB Page_Load (Byval E as Eventargs) Handles MyBase.Load</p>
<p>MyDataGrid.headerstyle.font.bold = TRUE</p>
<p>MyDataGrid.headerstyle.horizontalalign = horizontalalign.center</p>
<p>MyDataGrid.columns (0) .Headertext = "Operation"</p>
<p>MyDataGrid.columns (1) .Headertext = "Title"</p>
<p>MyDataGrid.columns (2) .Headertext = "Release Date"</p>
<p>IF not ispostback.</p>
<p>DIM STRCN AS STRING = "provider = microsoft.jet.Oledb.4.0; data source =" server.mappath ("test.mdb")</p>
<p>DIM STRSQL AS STRING</p>
<p>strsql = "SELECT TOP 15 ObjectGuid, title, createdate from Document Order By CreateDate DESC"</p>
<p>DIM CN AS New OLEDBConnection (STRCN)</p>
<p>cn.open ()</p>
<p>DIM CMD AS New OLEDBCommand (strsql, cn)</p>
<p>MyDataGrid.dataSource = cmd.executeReader (Commandbehavior.CloseConnection)</p>
<p>MyDataGrid.Database</p>
<p>cmd.dispose ()</p>
<p>CMD = Nothing</p>
<p>cn.close ()</p>
<p>cn.dispose ()</p>
<p>CN = Nothing</p>
<p>END IF</p>
<p>End Sub</p>
<p>Sub DataGrid_Itemcreated (Byval E AS DataGriditeMeventArgs)</p>
<p>Handles myDataGrid.Itemcreated</p>
<p>Select Case E.Item.itemTypecase ListItemType.Item, ListItemType.AlternatingItem, ListItemType.editItem</p>
<p>DIM MyDeletebutton as button</p>
<p>MyDeleteButton = E.Item.FindControl ("btndelete")</p>
<p>MyDeleteButton.Text = "Delete this line"</p>
<p>MyDeleteButton.attributes.add ("Onclick", "Return Confirm ('You really want to delete" _</p>
<p> E.Item.itemindex.toTOString "Row? ');")</p>
<p>End SELECT</p>
<p>End Sub</p>
<p>Private sub mydatagrid_itemcommand (Byval Source As Object, _</p>
<p>Byval e as system.Web.ui.WebControls.DataGridCommandEventArgs_</p>
<p>Handles myDataGrid.ItemCommand</p>
<p>Response.write ("You want to delete: <font color = red>" E.Item.cells (1) .text "</ font>")</p>
<p>E.Item.BackColor = system.drawing.color.ivory</p>
<p>End Sub</p>
<p>END CLASS</p></div><div class="text-center mt-3 text-grey">
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jsubmit.button('loading');
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jsubmit.button('reset');
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