Question

在将值提交到数据库后，我使用以下代码在标签中显示成功消息。但它不显示。我是这个领域的新手。请帮我这样做..

protected void btn_submit_Click(object sender, EventArgs e)
{
    try
    {
        //Insert Code is here
        ScriptManager.RegisterStartupScript(this, this.GetType(), "temp", "<script language='javascript'>UpdateStatus('Record Added Successfully,'Green');</script>", false);
    }
    catch 
    {

    }
}

 UpdateStatus(Message) {
        var statusMsg = document.getElementById('lbl_status');
        statusMsg.innerHTML = Message;
        return false;
    }

Answer 1

这对我来说就像一个与javascript无关的完整回发，你需要做的就是更改标签的文本。我不知道你要对RegisterStartupScript电话做什么，但这不是它应该如何运作的。只需将标签的文字设置如下......

protected void btn_submit_Click(object sender, EventArgs e)
{
    try
    {
        //Insert Code is here
        lbl_status.Text = "Record Added Successfully";
        lbl_status.ForeColor = System.Drawing.Color.Green;
    }
    catch 
    {
        lbl_status.Text = "Error";
        lbl_status.ForeColor = System.Drawing.Color.Red;
    }
}

只需确保您的标签是runat=server属性设置

的服务器控件

Answer 2

这样做

ASP.NET

<asp:Label runat="server" ID="lblMessage"></asp:Label>

在codebehind中

protected void btn_submit_Click(object sender, EventArgs e)
{
    try
    {
        //Insert Code is here
        lblMessage.text ="Message Here";
        lblMessage.ForeColor = System.Drawing.Color.Green;
    }
    catch 
    {
        lblMessage.text ="Message Here";
        lblMessage.ForeColor = System.Drawing.Color.Red;
    }
}

但是如果你想要一个消息框就像这样

protected void btn_submit_Click(object sender, EventArgs e)
    {
        try
        {
            //Insert Code is here
            ScriptManager.RegisterStartupScript(this, this.GetType(), "temp", "Message Here", false);
        }
        catch 
        {
            ScriptManager.RegisterStartupScript(this, this.GetType(), "temp", "Message Here", false);
        }
    }

然后将显示消息框。

提交值后的成功消息

2 个答案: