asp.net gets a summary of the values of Checkbox in Datalist
- 2020-05-09 18:27:41
- OfStack
The example code for the foreground is shown below, using the datalist control to display the StudentID and name in the Student table
The background code is as follows:
This gets the value selected from the foreground checkbox, but I feel that this method is a bit too complicated to use. If you have a better way to get Checkbox via C#, please comment. I would like to know how to use Checkboxlist.
<asp:DataList ID="dlTable" runat="server" >
<ItemTemplate>
<td align="center">
<asp:Label ID="lblID" runat="server" Text='<%#Eval("StudentID") %>' Visible="false"></asp:Label>
<asp:CheckBox ID="Chkbox" runat="server" />
</td>
<td>
<%#Eval("studentname") %>
</td>
<td>
<%#Eval("studentid") %>
</td>
</ItemTemplate>
</asp:DataList>
The background code is as follows:
//new1 a stringbulider An instance of the sbitems
StringBuilder sbitems = new StringBuilder();
foreach (DataListItem item in dlTable.Items)
{
// Get the foreground control
CheckBox chkbox = item.FindControl("Chkbox") as CheckBox;
Label lbId = item.FindControl("lblID") as Label;
// if checkbox be check Ok, so that will correspond label The value of the binding is assigned to sbitems , for subsequent operations, such as deletion.
if (chkbox == null || lblID== null)
{
continue;
}
if (chkbox.Checked)
{
sbitems.Append(lblID.Text.ToString());
sbitems.Append(",");
}
}
// Due to the much 1 A comma, so more remove Out a
if (!sbitems.ToString().Trim().Equals(string.Empty))
{
sbitems.Remove(sbitems.Length - 1, 1);
}
This gets the value selected from the foreground checkbox, but I feel that this method is a bit too complicated to use. If you have a better way to get Checkbox via C#, please comment. I would like to know how to use Checkboxlist.