In this article I will explain how to set or change the
Background Color of the
Selected Row of
ASP.Net GridView programmatically. When the Select
Command Button is clicked, on the
OnSelectedIndexChanged event of the
GridView, the Background Color of the
Selected Row is changed.
Note: You can also read some other interesting articles on GridView: -
HTML Markup
The
HTML Markup consists of:
GridView – For displaying data.
The
GridView consists of three
BoundField columns.
<asp:GridView ID="gvCustomers" HeaderStyle-BackColor="#3AC0F2"
runat="server" AutoGenerateColumns="false" OnSelectedIndexChanged="OnSelectedIndexChanged">
<Columns>
<asp:BoundField DataField="Name" HeaderText="Name" ItemStyle-Width="150" />
<asp:BoundField DataField="Country" HeaderText="Country" ItemStyle-Width="150" />
<asp:ButtonField Text="Select" CommandName="Select" />
</Columns>
</asp:GridView>
Namespaces
You will need to import the following namespaces
C#
using System.Data;
using System.Drawing;
VB.Net
Imports System.Data
Imports System.Drawing
Binding the GridView
Inside the
Page_Load event handler, an object of
DataTable is created.
Then, three columns are added to the
DataTable Columns collection using the
AddRange method.
An Array of objects of type DataColumn is specified which will hold the name.
Once the schema is ready i.e. all the columns are defined, some rows have been added using the Rows.Add method.
C#
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
DataTable dt = new DataTable();
dt.Columns.AddRange(new DataColumn[3] {
new DataColumn("Id"),
new DataColumn("Name"),
new DataColumn("Country") });
dt.Rows.Add(1, "John Hammond", "United States");
dt.Rows.Add(2, "Mudassar Khan", "India");
dt.Rows.Add(3, "Suzanne Mathews", "France");
dt.Rows.Add(4, "Robert Schidner", "Russia");
gvCustomers.DataSource = dt;
gvCustomers.DataBind();
}
}
VB.Net
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
Dim dt As New DataTable()
dt.Columns.AddRange(New DataColumn(2) {
New DataColumn("Id"),
New DataColumn("Name"),
New DataColumn("Country")})
dt.Rows.Add(1, "John Hammond", "United States")
dt.Rows.Add(2, "Mudassar Khan", "India")
dt.Rows.Add(3, "Suzanne Mathews", "France")
dt.Rows.Add(4, "Robert Schidner", "Russia")
gvCustomers.DataSource = dt
gvCustomers.DataBind()
End If
End Sub
Changing the GridView Selected Row Background color programmatically
Inside the
OnSelectedIndexChanged event handler, a loop is executed on the
GridView Rows and the
RowIndex of each Row is matched with the
SelectedIndex property of the
GridView which stores the
GridView Selected Row Index.
If match is found the color of that Row is changed while for others it is set back to the original color.
C#
protected void OnSelectedIndexChanged(object sender, EventArgs e)
{
foreach (GridViewRow row in gvCustomers.Rows)
{
if (row.RowIndex == gvCustomers.SelectedIndex)
{
row.BackColor = ColorTranslator.FromHtml("#A1DCF2");
}
else
{
row.BackColor = ColorTranslator.FromHtml("#FFFFFF");
}
}
}
VB.Net
Protected Sub OnSelectedIndexChanged(sender As Object, e As EventArgs)
For Each row As GridViewRow In gvCustomers.Rows
If row.RowIndex = gvCustomers.SelectedIndex Then
row.BackColor = ColorTranslator.FromHtml("#A1DCF2")
Else
row.BackColor = ColorTranslator.FromHtml("#FFFFFF")
End If
Next
End Sub
Screenshot
![How to change ( set ) GridView Selected Row Color in ASP.Net]()
Downloads
