Using C# and IOrganizationService Web Service - A Simple Application will display, add, modify and delete Entity records.
Form design
Form design
<div>
<strong>Contact Form - <asp:Button ID="Insert" runat="server" OnClick="Insert_Click" Text="Insert" /><br /></strong>
<asp:Literal ID="litViewAll" runat="server"></asp:Literal><br />
<asp:Panel runat="server" ID="panDetails" Visible="false">
First Name<asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox><br />
Last Name<asp:TextBox ID="txtLastName" runat="server"></asp:TextBox><br />
Address<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox><br />
City<asp:TextBox ID="txtCity" runat="server"></asp:TextBox><br />
Zip<asp:TextBox ID="txtZip" runat="server"></asp:TextBox><br />
State<asp:DropDownList ID="ddlSList" runat="server" AppendDataBoundItems="true">
<asp:ListItem Selected="True" Text="Select SList" Value="00000000-0000-0000-0000-000000000000"/>
</asp:DropDownList><br />
Municipality Name<asp:DropDownList ID="ddlJList" runat="server" AppendDataBoundItems="true">
<asp:ListItem Selected="True" Text="Select MList" Value="00000000-0000-0000-0000-000000000000"/>
</asp:DropDownList><br/>
<asp:Button ID="CreateNew" runat="server" OnClick="CreateNew_Click" Text="Create" />
<asp:Button ID="Delete" runat="server" OnClick="Delete_Click" Text="Delete" />
<asp:Button ID="Update" runat="server" OnClick="Update_Click" Text="Update" /><br />
</asp:Panel>
</div>
<strong>Contact Form - <asp:Button ID="Insert" runat="server" OnClick="Insert_Click" Text="Insert" /><br /></strong>
<asp:Literal ID="litViewAll" runat="server"></asp:Literal><br />
<asp:Panel runat="server" ID="panDetails" Visible="false">
First Name<asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox><br />
Last Name<asp:TextBox ID="txtLastName" runat="server"></asp:TextBox><br />
Address<asp:TextBox ID="txtAddress" runat="server"></asp:TextBox><br />
City<asp:TextBox ID="txtCity" runat="server"></asp:TextBox><br />
Zip<asp:TextBox ID="txtZip" runat="server"></asp:TextBox><br />
State<asp:DropDownList ID="ddlSList" runat="server" AppendDataBoundItems="true">
<asp:ListItem Selected="True" Text="Select SList" Value="00000000-0000-0000-0000-000000000000"/>
</asp:DropDownList><br />
Municipality Name<asp:DropDownList ID="ddlJList" runat="server" AppendDataBoundItems="true">
<asp:ListItem Selected="True" Text="Select MList" Value="00000000-0000-0000-0000-000000000000"/>
</asp:DropDownList><br/>
<asp:Button ID="CreateNew" runat="server" OnClick="CreateNew_Click" Text="Create" />
<asp:Button ID="Delete" runat="server" OnClick="Delete_Click" Text="Delete" />
<asp:Button ID="Update" runat="server" OnClick="Update_Click" Text="Update" /><br />
</asp:Panel>
</div>