How to make a dropdownlist control display some items in bold asp net

Introduction

ASP.NET is a popular programming language used for developing web applications. One common in web development is to display a dropdownlist control with some in bold. In this article, we will explore how to achieve this ASP.NET.

Step 1: Creating a Dropdownlist Control

To begin, let's a dropdownlist control in our ASP.NET web application. We can do this by adding the following code to our ASP.NET page:



Step 2: Adding Items to the Dropdownlist

Next, we need to add items to the dropdownlist control. We can do this programmatically in the code- file of our ASP.NET page. Here's an example:


protected void Page_Load(object sender, EventArgs e)
{
    if (!)
    {
        ddlItems.Items.Add(new ListItem("Item 1", "1"));
        ddlItems.Items.Add(new ListItem("Item 2", "2"));
        ddlItems.Items.Add(new ListItem("Item 3", "3"));
    }
}

In the above code, we are adding three items to the dropdownlist control. Each item is represented by a ListItem object, which takes the text and value as parameters.

Step 3: Styling the Dropdownlist Items

Now comes the interesting part – styling the dropdownlist items to display some of them in bold. We can achieve this by using the ItemDataBound event of the dropdownlist control. Here's an example:


protected void ddlItems_ItemDataBound(object sender, ListItemEventArgs e)
{
    if (e.Item.Text == "Item 2")
    {
        e.Item.Attributes.Add("style", "font-weight:bold;");
    }
}

In the above code, we are checking if the current item's text is “Item 2”. If it is, we add a style to the item's HTML markup to make it bold.

Step 4: Wiring up the ItemDataBound Event

Finally, we need to wire up the ItemDataBound event to our dropdownlist control. We can do this by adding the following code to the Page_Load event:


protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        ddlItems.Items.Add(new ListItem("Item 1", "1"));
        ddlItems.Items.Add(new ListItem("Item 2", "2"));
        ddlItems.Items.Add(new ListItem("Item 3", "3"));
        
        ddlItems.ItemDataBound += ddlItems_ItemDataBound;
    }
}

By adding the above code, we are subscribing to the ItemDataBound event of the dropdownlist control and specifying the to handle the event.

Conclusion

In this article, we have learned how to make a dropdownlist control display some items in bold using ASP.NET. By utilizing the ItemDataBound event and adding a style attribute to the desired items, we can achieve the desired result. ASP.NET provides a flexible and powerful framework for web development, allowing developers to customize the appearance and of to meet specific requirements.

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