Message Boxes, Popup in ASP.NET

Displaying Message Boxes, Popup in ASP.NET using Java Script

The following code samples can be used to display message boxes in ASP.NET webpages.

mes = chpwd.updat(txtrpwd.Text, txtuname.Text);
if (mes)
{

string script = "alert('New Password is Created');\n";
script += "var f='" + Session["flag"].ToString() + "';\n";
script += "if (f == 'L')\n";
script += "location.href='loginpage.aspx';\n";

Page.ClientScript.RegisterStartupScript(GetType(), "msgbox", script, true);
}

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Response.Write("<script>alert('New Password is created')</script>");
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if (mes)

{
StringBuilder sb = new StringBuilder();
sb.Append("<script type='text/javascript'>");
sb.Append("alert('New Password is Create');");

if (Session["flag"].ToString() == "L")
{
sb.Append("window.location = 'loginpage.aspx';");
}

sb.Append("");

Page.RegisterClientScriptBlock("mes", sb.ToString());
}

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Page.ClientScript.RegisterStartupScript(this.GetType(), "myAlertBox", "alert('New Password is Created'); window.location = 'loginpage.aspx';", true);

or

ClientScript.RegisterClientScriptBlock(this.GetType(), "myAlertBox", "alert('New Password is Created'); window.location = 'loginpage.aspx';", true);

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For POP Ups:

We can use Javascript function window.Open or target="_blank" for popups.

If we want to open a popup in form another popup window? we can use Java script function window.location.

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Another Method to Display Message boxes in ASP.NET

protected void btnSubmit_Click(object sender, EventArgs e)

{

string script = "alert('Are U sure? ');";

System.Web.UI.ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "Test", script, true);

}

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Another Method to Display Message boxes in ASP.NET

<asp:Button ID="button1" OnClientClick="return confirm('Are you sure?');" runat="server" />

or

<asp:LinkButton
ID="ibtnDelete"
runat="server"
Text="Delete"
CommandName="Delete"
OnClientClick="javascript:return confirm('Are you sure you want to delete this class?');">
</asp:LinkButton>