Delete JS foreground check, background bulk Delete

1. Functional Requirements

In a data table, select the record that you want to delete, click the Delete button, trigger the foreground validation, and then invoke the background processing logic

2. Code implementation

HTML code:

<asp:repeater id= "repinputlist" runat= "Server" datasourceid= "Inputsdatasource"

Enableviewstate= "true" >

<HeaderTemplate>

<table cellpadding= "2" cellspacing= "1" class= "admin_table" >

<thead>

<tr class= "Admin_table_title" >

<th style= "width:5%;" align= "Center" >

Choose

</th>

<th style= "width:6%;" align= "Center" >

Warehouse

</th>

<th style= "width:6%;" align= "Center" >

Material

</th>

<th style= "width:5%;" align= "Center" >

Number

</th>

</tr>

</thead>

</HeaderTemplate>

<ItemTemplate>

<tr onmouseover= "this.style.backgroundcolor= ' #ffff66 ';" onmouseout= "this.style.backgroundcolor= ' #d4e3e5 ';" >

<td>

<asp:checkbox id= "CB" runat= "Server" name= "checkbox"/>

<asp:hiddenfield id= "Hfrkid" runat= "server" Value= ' <%# Eval ("Rkid")%> '/>

</td>

<TD title= ' <% #Eval ("Wname")%> ' >

<% #StringTruncat (Eval ("Wname"). ToString (), 8, "...")%>

</td>

<TD title= ' <% #Eval ("Gname")%> ' >

<% #StringTruncat (Eval ("Gname"). ToString (), 4, "...")%>

</td>

<td>

<% #Eval ("Rkamount")%>

</td>

</tr>

</ItemTemplate>

<FooterTemplate>

</table></FooterTemplate>

</asp:Repeater>

<asp:button id= "Btnalldel" runat= "server" text= "Delete selected" onclick= "Btnalldel_click" onclientclick= "return Ifchecked (); "

Forecolor= "Red"/>

JS Code:

When the function returns false, the background Btnalldel_click () method is not called

function ifchecked () {

var count= $ ("input:checkbox:checked"). Length;

if (count<=0) {

Alert ("Please select the record you want to delete!") ");

return false;

}else {

Return confirm ("Are you sure you want to delete the selected inbound orders?") ");

}

}

Background method:

protected void Btnalldel_click (object sender, EventArgs e)

{

for (int i = 0; i < This.repInputList.Items.Count; i++)

{

RepeaterItem ri = this.repinputlist.items[i];

CheckBox ChB = ri. FindControl ("CB") as CheckBox;

String rkid = ((HiddenField) (RI. FindControl ("Hfrkid")). Value;

if (ChB. Checked = = True)

{

Inputdao. Delete (Rkid);

}

}

Page.ClientScript.RegisterStartupScript (Page.gettype (), "MsgBox", "<script> alert (' Delete succeeded! ') </script> ");

Rep_bind ();

}