Adding the Repeater
To demonstrate how to bind an array list to a repeater, we will need to create a simple web site with a repeater on it. To do this, create a new ASP.NET Empty Web Site and:
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- Right click the project in your solution explorer.
- Select add new item...
- Select a web form.
- Name it 'Default.aspx'.
- Click add.
- Open Default.aspx up to design mode.
- Drag and drop a repeater onto the web form.
- Open Default.aspx up to source mode.
- Add the following item template to the repeater:
<ItemTemplate>
<%# Container.DataItem %><br />
</ItemTemplate>
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This simply adds an item template to our repeater that will display the values of our array list. Notice that instead of accessing the data using the
eval method with an index of a column name, we use
Container.DataItem. This is because the array list we will bind to the repeater does not have specifications for rows and columns, it simply contains a list of data items.
Binding the ArrayList
Now that we have our repeater setup to output the appropriate data, we need to bind some data to it. To do this, add the following code to the
Page_Load event method:
if (!Page.IsPostBack)
{
//create an array list
ArrayList arrList = new ArrayList();
//populate the list with some temp values
arrList.Add("One");
arrList.Add("Two");
arrList.Add("Three");
arrList.Add("Four");
//databind the list to our repeater
Repeater1.DataSource = arrList;
Repeater1.DataBind();
}
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This simply creates an array list and populates it with temporary values. Then, we bind it to our repeater. To test this out, simply load up the web site and ensure that the values of your array list are being displayed on the page. The repeater is an extremely dynamic control that is able to conform to a number of different unique data sources. However, the repeater code to access its data is unique based on what type of data source you are binding to it.