In Simple Way
In Html
<asp:ImageButton ID="Image1" runat="server" ImageUrl="~/01.jpg" onClick="Image1_Click" />
<asp:ImageButton ID="Image2" runat="server" ImageUrl="~/02.jpg" onClick="Image2_Click" />
<asp:ImageButton ID="Image3" runat="server" ImageUrl="~/03.jpg" onClick="Image3_Click"/>
<asp:ImageButton ID="Image4" runat="server" ImageUrl="~/04.png" onClick="Image4_Click"/>
<asp:ImageButton ID="Image5" runat="server" ImageUrl="~/05.jpg" onClick="Image5_Click" /><br />
<asp:Image ID="Image6" runat="server" ImageUrl="" />
In .cs
protected void Image2_Click(object sender, EventArgs e)
{
Image6.ImageUrl = Image2.ImageUrl;
}
protected void Image5_Click(object sender, EventArgs e)
{
Image6.ImageUrl = Image5.ImageUrl;
}
protected void Image3_Click(object sender, EventArgs e)
{
Image6.ImageUrl = Image3.ImageUrl;
}
protected void Image4_Click(object sender, EventArgs e)
{
Image6.ImageUrl = Image4.ImageUrl;
}
protected void Image1_Click(object sender, EventArgs e)
{
Image6.ImageUrl = Image1.ImageUrl;
}