Bind ASP.NET Menu Control Using C#

Vinay Singh
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This blog will show you how you can bind ASP.NET menu control, using C# .NET from the data set. Thus, for this blog, first we will create a new ASP.NET Application and add the code given below into the page.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Menu.aspx.cs" Inherits="WebApplication7.Menu" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Bind Asp.net Menu Control Using C#</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<b>ASP.NET Menu Control</b>
<asp:Menu ID="Menu1" runat="server" BackColor="#F7F6F3"
DynamicHorizontalOffset="2" Width="50%"
Font-Names="Verdana" Font-Size="0.9em" ForeColor="#7C6F57"
StaticSubMenuIndent="10px" StaticEnableDefaultPopOutImage="false" Orientation="Horizontal">
<StaticSelectedStyle BackColor="#5D7B9D" />
<StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<DynamicHoverStyle BackColor="#7C6F57" ForeColor="White" />
<DynamicMenuStyle BackColor="#F7F6F3" />
<DynamicSelectedStyle BackColor="#5D7B9D" />
<DynamicMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<StaticHoverStyle BackColor="#7C6F57" ForeColor="White" />
</asp:Menu>
</div>
</form>
</body>
</html>

Afterwards, write the code to bind the menu item from the backend code. For this, we will create a data set to bind it to the menu control or we will create a new data set function.

public DataSet GetData()
{
// In order to test, we use the memory tables as the datasource.
DataTable mainTB = new DataTable();
DataColumn mainIdCol = new DataColumn("mainId");
DataColumn mainNameCol = new DataColumn("mainName");
DataColumn mainUrlCol = new DataColumn("mainUrl");
mainTB.Columns.Add(mainIdCol);
mainTB.Columns.Add(mainNameCol);
mainTB.Columns.Add(mainUrlCol);
DataTable childTB = new DataTable();
DataColumn childIdCol = new DataColumn("childId");
DataColumn childNameCol = new DataColumn("childName");
// The MainId column of the child table is the foreign key to the main table.
DataColumn childMainIdCol = new DataColumn("MainId");
DataColumn childUrlCol = new DataColumn("childUrl");
childTB.Columns.Add(childIdCol);
childTB.Columns.Add(childNameCol);
childTB.Columns.Add(childMainIdCol);
childTB.Columns.Add(childUrlCol);
// Insert some test records to the main table.
DataRow dr = mainTB.NewRow();
dr[0] = "1";
dr[1] = "Home";
dr[2] = "Test.aspx";
mainTB.Rows.Add(dr);
DataRow dr1 = mainTB.NewRow();
dr1[0] = "2";
dr1[1] = "Articles";
dr1[2] = "Test.aspx";
mainTB.Rows.Add(dr1);
DataRow dr2 = mainTB.NewRow();
dr2[0] = "3";
dr2[1] = "Help";
dr2[2] = "Test.aspx";
mainTB.Rows.Add(dr2);
DataRow dr3 = mainTB.NewRow();
dr3[0] = "4";
dr3[1] = "DownLoad";
dr3[2] = "Test.aspx";
mainTB.Rows.Add(dr3);
// Insert some test records to the child table
DataRow dr5 = childTB.NewRow();
dr5[0] = "1";
dr5[1] = "ASP.NET";
dr5[2] = "2";
dr5[3] = "Test.aspx";
childTB.Rows.Add(dr5);
DataRow dr6 = childTB.NewRow();
dr6[0] = "2";
dr6[1] = "SQL Server";
dr6[2] = "2";
dr6[3] = "Test.aspx";
childTB.Rows.Add(dr6);
DataRow dr7 = childTB.NewRow();
dr7[0] = "3";
dr7[1] = "JavaScript";
dr7[2] = "2";
dr7[3] = "Test.aspx";
childTB.Rows.Add(dr7);
// Use the DataSet to contain that two tables.
DataSet ds = new DataSet();
ds.Tables.Add(mainTB);
ds.Tables.Add(childTB);
// Build the relation between the main table and the child table.
ds.Relations.Add("Child", ds.Tables[0].Columns["mainId"], ds.Tables[1].Columns["MainId"]);
return ds;
}

In the function, given above, we have to create a date set for the menu. Now, check the function, given below, to bind it with the menu.

public void GenerateMenuItem()
{
// Get the data from database.
DataSet ds = GetData();
foreach (DataRow mainRow in ds.Tables[0].Rows)
{
// Load the records from the main table to the menu control.
MenuItem masterItem = new MenuItem(mainRow["mainName"].ToString());
masterItem.NavigateUrl = mainRow["mainUrl"].ToString();
Menu1.Items.Add(masterItem);
foreach (DataRow childRow in mainRow.GetChildRows("Child"))
{
// According to the relation of the main table and the child table, load the data from the child table.
MenuItem childItem = new MenuItem((string)childRow["childName"]);
childItem.NavigateUrl = childRow["childUrl"].ToString();
masterItem.ChildItems.Add(childItem);
}
}
}