C# - Displaying Error Message Without Postback?
Jun 24, 2010
I got this an asp.net 3.5 page that and I have few tabs (telerik tabs control with pageview) and I have panel on the top of the page and inside that has a label control displaying error message if it's any.
At the moment, if I want to display this, at the end of the event clicked button for instance, I have to do a custom URL redirection class to itself passing error message and display the error. BUT the problem with this approach let say you are working on 4th tabs and you click save button inside this then you loose the state of series of control (what's is being choosed, selected, typed etc). The page refreshed and displayed at the first tab again.
I want to display the error and at the same time know the state is for every control on the 4th tabs and automatically goes to 4th tabs. BTW ... this validation is done through server level.
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Oct 7, 2010
I have compare validators that I build on the fly in code behind that validate textboxes that are also built up in the code behind:
[Code]....
These work fine until a postback occurs. After a postback they still validate the form (i.e. they don't let you postback) but the error message won't display.
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Oct 4, 2012
I use below code for doesn't insert duplicate data in table
ALTER procedure [dbo].[insertestate1]
@position nvarchar(max)
,@Transfer nvarchar(20)
,@Type nvarchar(20)
,@Behcode nvarchar(10)
,@Measure varchar(20)
,@code varchar(20)
[code].....
Behind code
protected void ImageButton2_Click1(object sender, ImageClickEventArgs e)
{
string data = Server.UrlDecode(Request.QueryString["BehCode"]);
SqlCommand _cmd = new SqlCommand("insertestate1", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
_cn.Open();
[code].....
now my problem is that when it insert or didn't insert data in data base it didn't show any message in LBLERROR
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Feb 9, 2010
I have an aspx page with lots of controls on it. I am using a custom validator control (with the serverside validation). Is there a way to display the error message on the validation summary without writing Javasccript. I am a beginner in .NET and am not fluent in Javascript. This is the custom validator HTML
<asp:CustomValidator ID="CustomValidator1" runat="server" ErrorMessage="Invalid Date"
ControlToValidate="txtDate" OnServerValidate="ValidateDate_ServerValidate" ValidationGroup="vgSetUp"
></asp:CustomValidator>
This is the utility method am trying to validate for the entry on the UI, so that it takes dates only in these described formats If the user enters date in any other format, this method returns returns the Datetime.Mivalue(1/1/0001)
public DateTime GetFomattedDate(string dateString)
{
try
{
string[] formats = {
"MMddyyyy", // These are the accepted date formats for the UI
"MM/dd/yyyy",
"M/d/yyyy",
"yyyy/MM/dd",
"yyyy/M/d"
};
DateTime EffDate = DateTime.MinValue;
if ( DateTime.TryParseExact(dateString,formats, null, System.Globalization.DateTimeStyles.None, out EffDate))
{
return EffDate;
}
}
catch (Exception)
{
throw;
}
return DateTime.MinValue;
}
This is my customvalidator event handler(code behind)
protected void ValidateDate_ServerValidate(object source,servervalidate eventargs args)
{
args.IsValid = GetFomattedDate(args.Value) ==DateTime.MinValue? false:true;
}
I am able to validate it properly, but I cannot display the error message in the validation summary along with other messages. Anyone who is expert on Javascript can Help with the javascript function?
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Mar 24, 2010
This is something thats been bugging me for a while. I can't even remember if I fixed this before or not. What I'm trying to do is display a single error message for all validation controls on my page. I think this is possible if you write your own javascript function for a Custom Control, hiding the error message, and displaying it on a single control. Writting all the javascript for this and then refering to the control with "GetElementByID". But can I use controls like RequiredFieldValidator, and make them display messages on one single control without having to write javascript for each one of them? One single message on one single literal or label or whatever, at the bottom of the page, that says "fill in the compulsary fields" or something
similar. I find it very annoying having a list of validators underneath each other with different messages.
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Jan 16, 2011
I have tried in many way but the error message for custom validator is not shown in validation summary but it(ValidationSummary) shows error message for every other type of validator.
[code]....
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Code:
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<head id="Head1" runat="server">
<title></title>
<link href="jQuery/jquery-ui.css" rel="stylesheet" type="text/css" />
<script src="jQuery/jquery.min.js" type="text/javascript"></script>
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<script src="jQuery/json2.js" type="text/javascript"></script>
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<Updatepanel>
<datalist>
<panel>
<table>
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<asp:UpdatePanel ID="UpdatePanel1" runat="server">
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<div style="position: absolute; left: 4px; top: 26px; padding: 8px; height: 14px;">
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<asp:Label ID="lblsave" runat="server" Visible="true"
Style="z-index: 105; position: absolute" Font-Names="Tahoma" Font-Size="Small"></asp:Label>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="cmdsave" />
</Triggers>
</asp:UpdatePanel>
i have the above
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Dim sb As New StringBuilder()
Dim oFormObject As New System.Web.UI.Control
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") & Message2.Replace(vbCrLf, "
") & Message3.Replace(vbCrLf, "
")
Message = "<script type=text/javascript>alert(""" & Message1 & "
" & "
" & Message2 & "
" & "
" & Message3 & """)</script>"
sb = New StringBuilder()
sb.Append(Message)
For Each oFormObject In Me.Controls
oFormObject.Controls.AddAt(oFormObject.Controls.Count, New LiteralControl(sb.ToString()))
Next
End Sub
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<%@ Master Language="VB" CodeFile="MasterPage.master.vb" Inherits="MasterPage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" [URL]>
<html xmlns=[URL]>
<head id="Head1" runat="server">
<title>Job Reporting - Certified Jobs Inquiry</title>..............................
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DateTime dtStart = eventDate;
DateTime dtEnd = eventDate;[code].....
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Edit: I'm only interested in displaying the message in Microsoft Outlook. I've looked into the source of the message (in Outlook right click > View Source) and the text i want to get rid of is within the <body></body> html tags of the message)
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I have a function which returns dataset after execution of sql statements
If the dataset retruns rows than he data shld be dislayed in reporting services
Else display no rows avaliable
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