Web Forms :: Displaying Message If Dataset Returns 0 Rows
Jun 25, 2012
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
But currently even if there are no rows as per the given condition, the earlier data gets displayed
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Similar Messages:
Mar 29, 2011
I am trying to display rows which are returned from several stored procedues and then stored in dataset tables.
When I loop through the tables/rows/columns collections no data is displayed.
Here is my code :
[Code]....
And I am viewing the dataset with this code:
[Code]....
I am getting no error message and there should be data returned becaue I can execute the SPROCS through the VS serve explorer without a problem.
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Apr 14, 2010
I need to produce a from where I can add multiple parts. Each time a user enters a part number, the description should be populated. The user can then click add and this part and description will be shown below. They have the option to add as many parts as they require. Once all parts are added the user fills in some general info eg description and then once a submit button is clicked all part info will be inserted into a table and general info will be inserted into another table with one unique ID.
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Aug 20, 2010
I have a SQL stored proc that returns a dataset to ASP.NET v3.5 dataset. One of the columns in the dataset is called Attend and is a nullable bit column in the SQL table. The SELECT for that column is this:
CASE WHEN Attend IS NULL THEN -1 ELSE Attend END AS Attend
When I execute the SP in Query Analyzer the row values are returned as they should be - the value for Attend is -1 is some rows, 0 in others, and 1 in others. However, when I debug the C# code and examine the dataset, the Attend column always contains -1.
If I SELECT any other columns or constant values for Attend the results are always correct. It is only the above SELECT of the bit field that is behaving strangely. I suspect it has something to do with the type being bit that is causing this. So to test this I instead selected "CONVERT(int, Attend)" but the behavior is the same.
I have tried using ExecuteDataset to retrieve the data and I have also created a .NET Dataset schema with TableAdapter and DataTable.
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Apr 12, 2010
here is my code:
My sql query is returning 2 rows by my repeater is only displaying 1.
[Code]....
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Feb 11, 2010
What I'm trying to achieve is to track any change made on a form. I thought DataSet.HasChanges and DataSet.GetChanges would be a good way to accomplish this. However, in the code below DataSet.HasChanges always returns false.
EmployeeDs represents a strongly typed DataSet.how to get changes from the updated row into the new dataSet?
[Code]....
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Feb 13, 2010
I have a DataTable for which a PrimaryKey constraint has been set to be a combination of an integer column and a datetime column. When I try to 'Find' a row by saying,
dtFunds.Rows.Find(iContainerIndex)
I get a null value. iContainerIndex has been defined as an object array of size 2 with the integer ID and date values in it.
When I set a breakpoint in my code, I see that the very same values are present in the datatable.
If I try to execute, DataTable.Select() method with the integer column filter, I get a result - but returns no result when called with the date column filter.
What am I doing wrong here? The very same DateTime value is present in the datatable.
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Jan 15, 2010
Iam confronted with a really weird issue the like of which ive never seen before. I recently developed a web application using ASP.net and launched it for my company, during the bug testing stages everything seemed fine, but once it was actually in production i started getting these weird errors that all stem from it not retrieving the correct rows.
The issue is this, sometimes the queries sent to the back end only return a partial amount of the rows actualyl requested, so if a user has a page loaded thats suppose to return X number of rows, they can sometimes get X - Y number of rows, and upon refreshing the page they get X - Z number of rows, and refreshing the same exact page again they might get X number of rows they were initially suppose to see. I've never seen anything like this before so Iam stumped.
I consulted some of the old developers in the company I used to work for, for assistance but when explaining and showing the problem they too were very confused with the issue.
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Feb 7, 2011
I am trying to use a SqlDataAdapter to fill a DataTable, which I use as a data source to a DataGrid. The query is fine, at least when I run it manually in SSMSE. When I do the fill operation, the table gets the right columns, but no rows. The most frustrating part of this is that the code is identical (with a different query) on a different page. I cannot post the query, but my initialization code looks like this:
SqlCommand areaDAC = new SqlCommand (areaQuery, connection);
areaDAC.Parameters.Add (new SqlParameter ("@param", System.Data.SqlDbType.NVarChar, 50));
m_areaDataAdapter = new SqlDataAdapter (areaDAC);
Then to use it:
m_areaDataAdapter.SelectCommand.Parameters["@param"].Value = "Filter Val";
DataTable table = new DataTable ();
m_areaDataAdapter.Fill (table);
At this point, table has the right number of columns and no rows. I know the parameters are being added correctly, I know that data exists for the given query.
Update (as provided by Nik in a comment):
[Code]....
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Aug 27, 2010
private void FillDetails(string pId, out string Name, out string Address)
[code]....
I have method called Filldetails(),This method uses stored procedure to retrieve information for product name and address based on productid passed from productdetails table.I am working on globalization project.We have this product information for US country but there is no product information for germany country.So dataset is empty for germany.As result I am getting error object reference not set to an instance of the object.
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Oct 12, 2010
I have a routine that submits a SOAP request using HttpWebRequest and WebResponse. If the SOAP Request fails the server sends back HTTP/1.1 500 Internal Server Error. When I trap the error I have yet to find a way to view the body of the reply which contains the fault code. Is there a way to retrieve the message body when the server returns a 500 internal Server Error? In body of the reply which I am not able to retrieve.
faultstring xml:lang="en-US" Specified argument was out of the range of valid values.
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Jan 12, 2010
I have a WCF client test harness where I'm using a "client message inspector" endpoint behavior to "pick off" raw requests and response messages going to and from a service and save them for later display in the UI.
This works great, except for the use case where invalid credentials are passed (Basic Authentication). The server returns an HTTP 401 along with a SOAP fault in the body containing details of what happened. I have no control over the service, so this behavior cannot be changed.
Because the HTTP 401 is returned as a WebException, my message inspector never fires and I can't get to the raw response. This exception eventually gets to the UI in the form a MessageSecurityException.
Is there any way to suppress this so the message inspector's AfterReceiveReply still fires? or is there somewhere else I can access the entire raw response?
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Jul 1, 2010
I added a new table to my type dataset. When the code tries to execute the new row on that table I get the error message.
(if you can't see the error. "MissingMethodException was caught" "Method not found: 'MyTableDataTable MyNamespace.get_SSCase().")
I've tried the wizard and also click and drag the table from solution explorer to the xsd file. The other tables work, just this one table won't work. What should I check?
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Aug 20, 2013
How to display an overlay in asp.net web application as in case of jabong website.
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Feb 24, 2012
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div style="position: absolute; left: 4px; top: 26px; padding: 8px; height: 14px;">
<asp:Button ID="cmdsave" runat="server" Text="Save" Width="50px" Font-Bold="True"
Font-Size="Small" Height="23px" OnClick="cmdsave_Click" CausesValidation="false" /></div>
<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
when i click save wherever msg get displayed in lblsave.text but positioning of the <asp:Label ID="lblsave" for displaying msg is not proper i have another label lblmsg in modal popup i need to display msg in lblmsg but i get blank.
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Jan 14, 2010
I'm using a table adapter to perform my queries. I'm sure I'm missing something really easy, but I can't figure out how to return the number of rows returned from a query to a dataset used for a GridView.Basically, I want to display a message "No records exist for your selection" by testing for ReturnedRows = 0.
Excerpt of C# code:
handoutDSTableAdapters.handoutTableAdapter handoutsAdapter =
new handoutDSTableAdapters.handoutTableAdapter();
gv_Handout.DataSource = handoutsAdapter.GetDataByDoctor(Int32.Parse(ddl_MD.SelectedValue));
gv_Handout.DataBind();
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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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Sep 16, 2010
I inherited some C# code behind that queries a database table and need to add something that displays a "No results" message (using a Label web control, perhaps) if the query doesn't return any records. I'm just learning C# but am coming up short on how to do this. Would anyone be kind enough to point me to an example, or demonstrate? Here's the code I inherited (the programmer who wrote this is no longer available). This is the code behind from the search results page:
[Code]....
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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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May 18, 2010
I see from google that this is a common problem. I have a SQL server database that contains 26 rows of data. Two columns, the first is PK and an identity column (keys numbered 1 to 26) and the second column is a text field (nchar(10)) containing a letter of the alphabet (A..Z). The letters were inserted randomly to simulate sql being unsorted by default. I have a query that returns all of the data ordered by the letter column ascending. If I execute the query in sql server I get 26 rows orderd A..Z.
I have a gridview that is set up for paging (page size = 15) and sorting. When sorting is disabled, all data is correctly displayed on the gridview, 15 rows on the first page, 11 rows on the second page.
If I enable sorting, I get 15 rows on the first page and 11 rows on the second page, however on closer examination I find two letters missing and two letters duplicated on both pages. If I navigate to page two, then back to page 1 I find that the data is then shown correctly and the missing letters are back.
Has anyone struck this issue? I am thinking that the sort is not being initialized correctly, but am not sure where to look.
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Sep 15, 2010
I have a .Net 4 Chart Control bound to stored proc. For some customer selected queries the chart will be empty. I would like to display a "No data" message in the empty charting area so customers understand why the chart is empty. I haven't been able to find any information about how to do this.
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Oct 1, 2010
i am using asp.net gridview control and i have Eight thousand records, than i am using paging techniquies on each page 10 records displayed now i want to display message YOU ARE VIEWING RECORD FROM 0 to 10 OUT OF 8000
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Jul 14, 2010
I am having a problem with this code, i had a post on this however this code is slightly different to that so i thought i would post a spearate thread.
Anyway, what i am trying to do is display job vacancies by the result of a DropDownList value. Now each job name has a description. The problem i am having is i need to display the results in this logic:
Job nameJob descriptionJob location. But what is happening is the job description (body) is repeating the more vacancies there are. This is the page:
http://kidsunlimited.co.uk/vacancies_test_two.aspx
If you select Deputy Nursery Manager from the DropDown and hit the Search button you will see the results. After listing the first two locations the description is repeated and then the 3rd location is shown after this. This is my code:
[Code]....
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Oct 30, 2010
I am binding the asp grid to object datasourcecontrol but the rows are not displaying only columns are displaying following is my code...
DEFAULT.aspx
[Code]....
Default.aspx.vb
[Code]....
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