Custom Message Alert

Question

User1769015664 posted

Is there a way to modify the following code to bring up a custom alert without the default title "localhost:12354 says" and the box in color?

public void ShowMessageBox(Page page, string message)
    {
        Type cstype = page.GetType();

        ClientScriptManager cs = page.ClientScript;

        int ScriptNumber = 0;
        bool ScriptRegistered = false;
        do
        {
            ScriptNumber++;
            ScriptRegistered = cs.IsStartupScriptRegistered(cstype, "PopupScript" + ScriptNumber);
        } while (ScriptRegistered == true);

        cs.RegisterStartupScript(cstype, "PopupScript" + ScriptNumber, "alert('" + message + "');", true);

Answer 1

User-943250815 posted

You are using "alert" which is generated by browser itself. So there is no way to change browser behavior.
But you can use a javascirpt library and make a more elegant alert popup.
Try https://sweetalert2.github.io/

Answer 2

User158811806 posted

I don't have to use "alert" if you help me with an alternate.  I just want to display a message if a required field value is not entered and a Button is clicked.

Answer 3

User-943250815 posted

To validade fields on webforms use Validator Controls. Check here https://www.codemag.com/Article/0307101/Validating-Data-On-Web-Forms