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POASP.NET Data Binding from CodeBehind
 

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  1. POASP.NET Data Binding from CodeBehind
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    <p>I am writing an asp.net program for creating reservations in which I have a listview control connected to an SQL database. The user enters most of the information to be sent to the database (name, phone-number, etc..) however there is some info (the current date/time for example) that I would like to be automatically populated before being added to the db. I would like to set this up in the code-behind (C#), but I cannot seem to figure out the proper way to do it. Any thoughts would be greatly appreciated!</p> <p>Here is my current code:</p> <pre><code>&lt;%@ Control Language="C#" AutoEventWireup="true" CodeBehind="SummaryForm.ascx.cs" Inherits="RamRideOps.Controls.SummaryForm" %&gt; &lt;asp:EntityDataSource ID="Rides_EDS" runat="server" ConnectionString="name=RamRideOpsEntities" DefaultContainerName="RamRideOpsEntities" EnableFlattening="False" EntitySetName="Rides" EntityTypeFilter="Ride" EnableDelete="True" EnableInsert="True" EnableUpdate="True"&gt; &lt;/asp:EntityDataSource&gt; &lt;asp:ListView ID="SummaryLV" runat="server" DataKeyNames="TimeOfCall" DataSourceID="Rides_EDS" InsertItemPosition="LastItem" onselectedindexchanged="ListView1_SelectedIndexChanged"&gt; &lt;AlternatingItemTemplate&gt; &lt;tr style="background-color:#FFF8DC;"&gt; &lt;td&gt; &lt;asp:Label ID="TimeOfCallLabel" runat="server" Text='&lt;%# Eval("TimeOfCall") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="NameLabel" runat="server" Text='&lt;%# Eval("Name") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="PhoneLabel" runat="server" Text='&lt;%# Eval("Phone") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="NumPatronsLabel" runat="server" Text='&lt;%# Eval("NumPatrons") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="PickupAddressLabel" runat="server" Text='&lt;%# Eval("PickupAddress") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="DropoffAddressLabel" runat="server" Text='&lt;%# Eval("DropoffAddress") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="StatusLabel" runat="server" Text='&lt;%# Eval("Status") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="AssignedCarLabel" runat="server" Text='&lt;%# Eval("AssignedCar") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" /&gt; &lt;asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delt" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/AlternatingItemTemplate&gt; &lt;EditItemTemplate&gt; &lt;tr style="background-color:#008A8C;color: #FFFFFF;"&gt; &lt;td&gt; &lt;asp:TextBox ID="NameTextBox" runat="server" Text='&lt;%# Bind("Name") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="PhoneTextBox" runat="server" Text='&lt;%# Bind("Phone") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="NumPatronsTextBox" runat="server" Text='&lt;%# Bind("NumPatrons") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="PickupAddressTextBox" runat="server" Text='&lt;%# Bind("PickupAddress") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="DropoffAddressTextBox" runat="server" Text='&lt;%# Bind("DropoffAddress") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="StatusTextBox" runat="server" Text='&lt;%# Bind("Status") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="AssignedCarTextBox" runat="server" Text='&lt;%# Bind("AssignedCar") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Button ID="UpdateButton" runat="server" CommandName="Update" Text="Update" /&gt; &lt;asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Cancel" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/EditItemTemplate&gt; &lt;EmptyDataTemplate&gt; &lt;table runat="server" style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;"&gt; &lt;tr runat="server"&gt; &lt;td runat="server"&gt; There are currently no scheduled rides!&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/EmptyDataTemplate&gt; &lt;InsertItemTemplate&gt; &lt;tr style=""&gt; &lt;td&gt; &lt;asp:TextBox ID="TimeOfCallTextBox" runat="server" Text='&lt;%# Bind("TimeOfCall") %&gt;' Visible="False" /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="NameTextBox" runat="server" Text='&lt;%# Bind("Name") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="PhoneTextBox" runat="server" Text='&lt;%# Bind("Phone") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="NumPatronsTextBox" runat="server" Text='&lt;%# Bind("NumPatrons") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="PickupAddressTextBox" runat="server" Text='&lt;%# Bind("PickupAddress") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="DropoffAddressTextBox" runat="server" Text='&lt;%# Bind("DropoffAddress") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="StatusTextBox" runat="server" Text='&lt;%# Bind("Status") %&gt;' Visible="True" /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="AssignedCarTextBox" runat="server" Text='&lt;%# Bind("AssignedCar") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Button ID="InsertButton" runat="server" CommandName="Insert" Text="Add" OnClientClick="addButton_Click" /&gt; &lt;asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Clear" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/InsertItemTemplate&gt; &lt;ItemTemplate&gt; &lt;tr style="background-color:#DCDCDC;color: #000000;"&gt; &lt;td&gt; &lt;asp:Label ID="TimeOfCallLabel" runat="server" Text='&lt;%# Eval("TimeOfCall") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="NameLabel" runat="server" Text='&lt;%# Eval("Name") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="PhoneLabel" runat="server" Text='&lt;%# Eval("Phone") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="NumPatronsLabel" runat="server" Text='&lt;%# Eval("NumPatrons") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="PickupAddressLabel" runat="server" Text='&lt;%# Eval("PickupAddress") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="DropoffAddressLabel" runat="server" Text='&lt;%# Eval("DropoffAddress") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="StatusLabel" runat="server" Text='&lt;%# Eval("Status") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="AssignedCarLabel" runat="server" Text='&lt;%# Eval("AssignedCar") %&gt;' /&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" /&gt; &lt;asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delt" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/ItemTemplate&gt; &lt;LayoutTemplate&gt; &lt;table runat="server"&gt; &lt;tr runat="server"&gt; &lt;td runat="server"&gt; &lt;table ID="itemPlaceholderContainer" runat="server" border="1" style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;font-family: Verdana, Arial, Helvetica, sans-serif;"&gt; &lt;tr runat="server" style="background-color:#DCDCDC;color: #000000;"&gt; &lt;th runat="server" style="width:auto"&gt; Call Time&lt;/th&gt; &lt;th runat="server" style="width:auto"&gt; Name&lt;/th&gt; &lt;th runat="server" style="width:5px"&gt; Phone&lt;/th&gt; &lt;th runat="server" style="width:auto"&gt; Size&lt;/th&gt; &lt;th runat="server" style="width:auto"&gt; Pick-Up&lt;/th&gt; &lt;th runat="server" style="width:auto"&gt; Drop-Off&lt;/th&gt; &lt;th runat="server" style="width:auto"&gt; Status&lt;/th&gt; &lt;th runat="server" style="width:auto"&gt; Car&lt;/th&gt; &lt;th id="Th1" runat="server"&gt; &lt;/th&gt; &lt;/tr&gt; &lt;tr ID="itemPlaceholder" runat="server"&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr runat="server"&gt; &lt;td runat="server" style="text-align: center;background-color: #CCCCCC;font-family: Verdana, Arial, Helvetica, sans-serif;color: #000000;"&gt; &lt;asp:DataPager ID="DataPager1" runat="server"&gt; &lt;Fields&gt; &lt;asp:NextPreviousPagerField ButtonType="Button" ShowFirstPageButton="True" ShowLastPageButton="True" /&gt; &lt;/Fields&gt; &lt;/asp:DataPager&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/LayoutTemplate&gt; </code></pre> <p></p>
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    1. COCan you show the code you're currently using to perform the database insert? There are multiple ways to do it, and a helpful answer will depend on what you're doing.
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    2. COSure... code added to my post.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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