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ASP Alert Box

Posted on 2014-02-10
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Last Modified: 2014-05-29
Hi,

I am Using Alert Box for  Display Information.If I click on Ok in Alert, I want to set ISPostback property on page load. Can u plz give example how to do?

Here my alert box code :
Page.ClientScript.RegisterStartupScript(this.GetType(), "ALERT", "alert('Deleted Successfully');", true);

if I click Ok on Alert I want to execute below method.
protected override void CreateChildControls()
        {
                   
                if (Page.IsPostBack)
                {
                    display1();
                }
           
        }
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Question by:mannevenu26
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1 Comment
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 39847252
you will need these items, a hidden field:
<asp:HiddenField id="HiddenField1" runat="server" />

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a javascript function:
<script type="text/javascript">
 //in javascript fist check for postback because it is registered on page load
function validate()
{
   var blnPostBack = '<%= Page.IsPostBack ? "true" : "false" %>';
   if (blnPostBack == 'true')
   {
       if(!confirm('Are you sure to submit?'))
       {
            document.getElementById('<%= HiddenField1.ClientID %>').value=0;
       }
    }
    else
    {
       document.getElementById('<%= HiddenField1.ClientID %>').value=1;
    }
} 
</script> [code]

finally, in your asp page: [code]protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
             ScriptManager.RegisterStartupScript(this, typeof(string), "alert", "validate();", true);
        }
      
    }

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and your code changes to:
protected override void CreateChildControls()
{
         int result1=Convert.ToInt32(HiddenField1.Value);
         if (result1 == 1 && IsPostBack)
        {
        }
} 

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