Hi,I’m new to SQL Express, but I have created a table and a stored proc to populate it.I have dragged the table into a form so I can view the data in a GridView.I have added a button to add new rows to the table. All the above works fine, except when I hit add, the data gets added, but the GridView doesn’t update and show the new data.
Is there some code I can add to the add button that also refreshed the GridView? ThanksMike
I wrote a stored procedure for SqlServer 2000 and i am using it for paging purpose. The procedure is as follows :
set ANSI_NULLS ON set QUOTED_IDENTIFIER ON go ALTER PROCEDURE [dbo].[OLAP_PagedRows] ( @SelectFields nVarchar(2000) =NULL,
@GroupByFields nvarchar(1000) =NULL,
@BaseTable varchar(100),
@KeyColumn nvarchar(200)=NULL ,
@JoinTables varchar(500) =NULL,
@ConditionalClause varchar(1000) =NULL,
@Pagesize int = 10,
@PageNumber int =1,
@SortExpression nvarchar(200)=NULL,
@SearchText nvarchar(200)=NULL
)
AS
BEGIN
DECLARE @SQLSTMT NVarchar(4000)
DECLARE @SQLSTMT1 NVarchar(4000)
SET @SQLSTMT1 = ''
--check whether page size is given null or not, if so set to default value
IF @Pagesize IS NULL OR @Pagesize = ''
BEGIN
SET @Pagesize =10
END
--check whether page number is given null or not, if so set to default value
IF @PageNumber IS NULL OR @PageNumber = ''
BEGIN
SET @PageNumber =1
END
--Start constructing the query --
SET @SQLSTMT = 'SELECT '
SET @SQLSTMT1 = 'DECLARE @CountValue INT SELECT @CountValue = count(*) From '+@BaseTable
SET @SQLSTMT = @SQLSTMT + @SelectFields + ' FROM '+@BaseTable
If @JoinTables Is Not Null
BEGIN
SET @SQLSTMT = @SQLSTMT + ' ' +@JoinTables
SET @SQLSTMT1 = @SQLSTMT1 + ' ' +@JoinTables
END
DECLARE @StmtWhereClause nvarchar(500)
SET @StmtWhereClause =''
--------------------- Get where conditional clause
If (@SearchText Is Not Null AND RTRIM(LTRIM(@SearchText))<>'')
BEGIN
SET @StmtWhereClause = @StmtWhereClause + ' WHERE ' + @SearchText
END
If @ConditionalClause Is Not Null AND RTRIM(LTRIM(@ConditionalClause))<>''
BEGIN
IF (@StmtWhereClause <> '')
BEGIN
SET @StmtWhereClause= @StmtWhereClause + 'AND ' +@ConditionalClause
END
ELSE
BEGIN
SET @StmtWhereClause = @StmtWhereClause + ' WHERE ' + @ConditionalClause
END
END
SET @SQLSTMT = @SQLSTMT + @StmtWhereClause
SET @SQLSTMT1 = @SQLSTMT1 + @StmtWhereClause
If @GroupByFields Is Not Null And RTRIM(LTRIM(@GroupByFields))<>''
BEGIN
SET @SQLSTMT = @SQLSTMT + ' Group By ' +@GroupByFields
SET @SQLSTMT1 = @SQLSTMT1 + ' Group By ' +@GroupByFields
END
IF @SortExpression Is Not Null AND RTRIM(LTRIM(@SortExpression))<>''
BEGIN
SET @SortExpression = LTRIM(RTRIM(' Order By '+ @SortExpression))
SET @SQLSTMT = @SQLSTMT +' '+ @SortExpression
SET @SQLSTMT1 = @SQLSTMT1 +' '+ @SortExpression
END
SET @SQLSTMT1= @SQLSTMT1+' SELECT @CountValue As MyRows '
--SELECT @SQLSTMT1
--SELECT @SQLSTMT
DECLARE @StartRow INT
SET @SQLSTMT = ' DECLARE temp_Cursor CURSOR SCROLL FOR '+@SQLSTMT
EXECUTE SP_EXECUTESQL @SQLSTMT
Open temp_Cursor
DECLARE @RowCount INT
SET @RowCount = 1
SET @startRow = (@PageSize * (@PageNumber-1))+@RowCount
--SELECT @startRow as 'Current Row'
WHILE @RowCount <= @PageSize
BEGIN
--Select @StartRow 'as @StartRow'
FETCH ABSOLUTE @startRow From temp_Cursor
SET @RowCount= @RowCount+1
SET @StartRow = @startRow + 1
END
deallocate temp_Cursor
EXECUTE SP_EXECUTESQL @SQLSTMT1
END
It is working fine but I have problem with this kind of paging. I need to load the whole data into the cursor and i have to fetch records. The problem is that my table's contains more than Half a million records in it. If I have to load each time this cursor it will be a very big problem on the server side.
Probably it may not be a best solution, but sqlserver 2000 cannot provide more help than this. If I use sub-query for this like using Top <Number> it adversly effecting the nature of the data retrieval.
One solution that I am thinking is Load cursor once and whenever some updations performed on those tables from which cursor is getting data should be automatically reflect the changes.
Recently we upgraded the SQL sever from 32 bit box to 64 bit and we encounterd some weird results like data was not refreshing unless we manually does a manually refresh.
we just ran some migration scripts from another server to the new 64 bit server and script is correct only thing problem is with data refreshing.
Please send me the solution for the problem and let me is there any script that we can refresh the database using tsql command???
I have a SSRS 2000 report that when I view the report data does not refresh until I press the refresh data button in the report. Clearly this can't be right and to expect users to press the refresh button every single time is also rediculous.
HAs anyone had this problem before and know what to do.
I created a slowly changing dimension object and used an OLE DB Source object with a SQL Command to feed it. After all the SCD objects are created, I get a warning about a truncation which might happen.
I adjust the source query with the right converts, so the query uses data types and lengths which match the target table. I update the OLE DB Source with the new query. Column names are unchanged.
Now how do I get this data flow to reflect the new column lengths? Do I have to throw away all objects and recreate the SCD? The refresh button in the SCD object doesn't do it. This is also a problem when adding columns to your dimension table. Because I modify the stuff that the SCD generates, it's VERY teadious to always have to throw it all away and start over again.
I am trying to refresh a test database with data from a production database. Both database structures are identical, e.g. constraints, stored procs, PK, etc. I am trying to create a package in SSIS that accomplishes this task and I am having extensive problems. The import export wizard is out of the question because the constaints are not carried over, plus when I try to refresh the data using the import export wizard, it fails on 1 specific table because of a column in that table named "Error code". I think "Error code" is a micrsoft keyword, so it fails on this column. Does anyone know a workaround that I can do to accomplish this simple task, that could be completed in minutes using DTS. I understand that SSIS is not as straight forward as DTS, but this task is something that DBA's do on a regular basis and therefore should not be this difficult.
Normally I would be using SSAS but our finance department make use of Hyperion Essbase. I was wondering whether it was possible to upload data into an Essbase cube using SSIS in the same way that you can use the Analysis Services processing task? I realise there are no specific task for Essbase, but are there any suggestions about what would be the best way of going about this?
So I use Excel 2010 connect to a cube I have built. Then I change some values in the cube via my ETL and re-process the cube. Then I verify that record is NOT there in the fact table - check!
However, when I refresh the worksheet where the pivot table is pulling data from the cube, but that old record wont go away!
Just realized my cube data source on the dev server, was in fact still configured with my local workstation name. Once I updated that, processed the cube all was well.
Im using VS2008, visual basic and SQL Server express.
General questions please: Is it necessary, to issue some sort of command, to 'commit' data to a SQL express database after a INSERT or UPDATE sql command?
I'm getting strange behavior where the data is not refreshed unless i exit my app and re-enter. In other words, i can run a sql command , the data is apparantly saved (because i get no errors) then if i refresh a data set or do a sql select query the data that i expect to return is not there.
Im fairly new to SQL express (and SQL server generally) so i dont know if its my coding or i need to switch some 'feature' on/off or not.
I hope thats clear
Also, could someone point me to documentation that explains each parameter in the connection string
Hi, I am seeking a hopefully easy solution to spit back an error message when a user receives no results from a SQL server db with no results. My code looks like this What is in bold is the relevant subroutine for this problem I'm having. Partial Class collegedb_Default Inherits System.Web.UI.Page Protected Sub submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles submit.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] WHERE [name] like '%" & textbox1.Text & "%'" SqlDataSource1.DataBind() If (SqlDataSource1 = System.DBNull) Then no_match.Text = "Your search returned no results, try looking manually." End If End Sub Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End Sub Protected Sub reset_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles reset.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End SubEnd Class I'm probably doing this completely wrong, I'm a .net newb. Any help would be appreciated. Basically I have GridView spitting out info from a db upon Page Load, but i also have a search bar above that. The search function works, but when it returns nothing, I want an error message to be displayed. I have a label setup called "no_match" but I'm getting compiler errors. Also, next to the submit button, I also have another button (Protected sub reset) that I was hoping to be able to return all results back on the page, similar to if a user is just loading the page fresh. I'd think that my logic would be OK, by just repeating the source code from page_load, but that doens't work.The button just does nothing. One final question, unrelated. After I set this default.aspx page up, sorting by number on the bottom of gridview, ie. 1,2,3,4, etc, worked fine. But now that paging feature, as long with the sorting headers, don't work! I do notice on the status bar in the browser, that I receive an error that says, "error on page...and it referers to javascript:_doPostBack('GridView1, etc etc)...I have no clue why this happened. Any help would be appreciated, thanks!
i need to retrieve data from a particular field of the gridview according to the selected row to stored it into session .....what i had done so far as following: Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) DetailsView1.PageIndex = GridView1.SelectedIndex Session.Add("receiverName", GridView1.??????) End Sub????? is the part i am not sure what to code.... i tried different method by seems to have problem of convertion.
Hi, I am trying to set a default value for a date field in my update parameters:When I try an update with the DefaultValue="<% Now %>", I get this error:"String was not recognized as a valid DateTime."The updates work fine if no default value is set and it also works ok if I change the default value to a set string, such as "6/24/06". I've tried using different data sources and datasets, but no luck.Anyone have any ideas on this?Thanks! <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:db1ConnectionString %>" ProviderName="<%$ ConnectionStrings:db1ConnectionString.ProviderName %>" SelectCommand="SELECT [ID], [Name], [Date] FROM [Table1]" DeleteCommand="DELETE FROM [Table1] WHERE [ID] = ?" InsertCommand="INSERT INTO [Table1] ([ID], [Name], [Date]) VALUES (?, ?, ?)" UpdateCommand="UPDATE [Table1] SET [Name] = ?, [Date] = ? WHERE [ID] = ?"> <DeleteParameters> <asp:Parameter Name="ID" Type="Int32" /> </DeleteParameters> <UpdateParameters> <asp:Parameter Name="Name" Type="String" /> <asp:Parameter Name="Date" Type="DateTime" DefaultValue="<% Now() %>" /> <asp:Parameter Name="ID" Type="Int32" /> </UpdateParameters> <InsertParameters> <asp:Parameter Name="ID" Type="Int32" /> <asp:Parameter Name="Name" Type="String" /> <asp:Parameter Name="Date" Type="DateTime" /> </InsertParameters> </asp:SqlDataSource>
I have a few Stored procedures that return values, some need parameters passing and others don't. Up to now to access that data in a Web App I have called this procedure using VB after seting up a data block etc. However I notice that the Web Developer express edition has some tools that look like they should help. I have used the in-built tools to create a SQL data source linked to a details view. I then specified that this should connect to my database (sql2005 hosted) and then specified Custom SQL or Stored procedure. From the drop down I can then select the SP that purely returns values. When I try to test this query I get an error to say that the query did not return any data tables. Is there a way to get values returned from a SP in this way? Regards Clive
Hi,I want to add Sql data dependency in GridView. Whenever any changes in database, same will be reflected in Grid. but this should work in both Sql server 2000 and sql server 2005. And when we click on "Pause" button it should stop refreshing.
PAUSE
Index
First name
Last Name
Address
1
Xyz
Abc
Asdf, asdf
2
Pqr
Asd
Sdsa, asad
Is there any way to fulfill this kind of requirement? Please suggest me optimal solution to do this.Regards,Mustakim Mansuri
one of my webpages uses the following sql query to allow the user to search through the database and present the qualifying data in gridview: SELECT * FROM [Table1] WHERE ([comments] LIKE '%' + ? + '%') how could i expand this so that the user can also search through the database but instead by searching through another column such as [type]? thanks in advance
I have a products table in a Sql Server 2005 database. One of the fields contains the products attributes in xml. The most commonly used attribute is color. An element of color is inventory. This is the only way I could think of to maintain inventory numbers of each color of each product using someone else's (opensource) code. An example of an attribute field would be <?xml version="1.0"?> <ArrayOfAttribute xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <Attribute> <Name>Color</Name> <Description>Shown in Black</Description> <Selections> <AttributeSelection> <FormattedValue>483 - Black</FormattedValue> <Value>483 - Black</Value> <Inventory>25</Inventory> </AttributeSelection> <AttributeSelection> <FormattedValue>484 - Lt. Tan</FormattedValue> <Value>484 - Lt. Tan</Value> <Inventory>15</Inventory> </AttributeSelection> <AttributeSelection> <FormattedValue>485 - Pink</FormattedValue> <Value>485 - Pink</Value> <Inventory>17</Inventory> </AttributeSelection> </Selections> <SelectionType>SingleSelection</SelectionType> </Attribute> </ArrayOfAttribute> How can I read this into the gridview control so that it makes sense to the user?Diane
I have a webform that I am wanting to display data from a database. Right now I am using the gridview but for future purposes when it comes to maintenance what would be the easiest way to do updates? For example, if I add a new record into the database I would like the webform to automatically update itself to show all the records including the new record I added. Do I need to use a "table" and somehow connect it to a database? Do any stored procedures need to be created? Suggestions/ideas/codes help help help would be verrrry much appreciated!!! Also I am using MS Server 2003 and C# as the programming language. Thank you!!!!
Hello all, I am trying to modify the output of a SELECT statement in a VB asp.net page that pulls data from a SQL DB. I only need to modify one column in the gridview, but I'm having some issues. Here is the situation:SELECT TOP 24 ID, RecID, Timestamp, Answered, Holds, Dropped, Waits, Voicemail, Busied, LiveWaitsFROM mTrafficORDER BY Timestamp DESC The Timestamp column returns a number value (i.e. 564566).In terms of a date, 564566 doesn't mean anything to the user, so I need to convert this number into a recognizable and accurate date. The formula I need to implement is Timestamp/1440 - 1 The following SELECT statement returns the number as a date, but makes all records the same date: SELECT TOP 24 ID, RecID, Convert(datetime, Timestamp/1440 + 1) as Timestamp, Answered, Holds, Dropped, Waits, Voicemail, Busied, LiveWaitsFROM mTrafficORDER BY Timestamp DESC What do I need to do to implement this function dynamically into my gridview? Thanks in advance!
Good Day, Please help me, I have a database that looks like this, Building No. Floor No. Room No. Customer Name Appliances Appliances Codea 1 01 John TV 12a 1 02 //up tob 20 10 james Ref. 22b 20 10 joe Microwave 15 //and soon so if you would notice some rooms are vacant, as it usually happens, the buildings, floors and rooms are fixed except for the customers and the appliances. so at first i made this gridview and display this data in this manner:Customer Location (Building + floor) total rooms Used Rooms Available rooms A1 2 1 1 B2010 2 2 0 so if you would look at the table above, it just SUM up all tenants in a specific Location then Group it by Customer location,but i need to add the appliances in a different format like this: Customer Location (Building + floor) total rooms Used Rooms Available rooms TV Ref Microwave A1 2 1 1 tick B2010 2 2 0 tick tick so this is what i need to show, i already have done the first table (w'o appliances) but how can i make this second table?? please help me, SALAMAT PO.,Thanks
I have a GridView that gets data from an SqlDataSource. It works fine, but now when I want to filter the results and add more parameters to my sql query, nothing happens. My initial select statement in the SqlDataSource contains only 2 parameters, so now when a user clicks a Button, onclick I call a function that is supposed to change the select statement of the SqlDataSource, add 2 more parameters taken from 2 controls, and then update the GridView. This is what I use: dataSource.SelectCommand = "new select command here"; dataSource.SelectParameters.Add("State", txtState.Text); dataSource.SelectParameters.Add("City", txtCity.Text); grid.DataBind(); It compiles, but when I click the button to filter the results, the GridView always looks the same as if nothing happened. I do not know if this is the right way to do it, or am I on the wrong track? Help is appreciated. Thank you in advance.
The function that is supposed to delete a row, is not working. The function is called, and the windows is refreshed, but the row is not deleted.Can anyone see anything wrong with this code:public static void DeleteBlog(int original_BlogID) { string insertCommand = "DELETE FROM Blog WHERE BlogID = @BlogID"; SqlConnection myConnection = new SqlConnection(Blog.ConnectionString); SqlCommand command = new SqlCommand(insertCommand, myConnection); command.Parameters.Add(new SqlParameter("@BlogID", original_BlogID)); myConnection.Open(); command.ExecuteNonQuery(); myConnection.Close();}
Hi, I think the title explains it all really. I cannot configure the SqlDataSource to add Insert, Update and Delete statements - not through the wizard anyway. The view combines two tables, each containing 3 columns. I have tried using different combinations of columns, and ended up selecting all of them (making sure the foreign key column of the first table was given a different alias to the primary key column of the second table) but I still cannot enable editing. Cheers, Patrick
Hello, i currently have a gridview that is populated with data from a SQLServer datasource. I have put an output mask in the select statement, so the date and time attributes are displayed in the format i prefer them to be in. SELECT PatientNo, ConsultantName, HospitalName, CONVERT (varchar, Date, 101), CONVERT (varchar, Time, 8) FROM [Appointment]; However when i click the 'edit' link for a record in the gridview, i am unable to edit the date/time attributes and when i click update to confirm any changes to the other attributes, the values in the date/time attributes are emptied. How can i solve this update problem. I'm guessing i need to configure my SQL UPDATE statement, but bit stuck how i do this. Please help! Thanks, James
Here is the Stored procedure ALTER procedure [dbo].[ActAuditInfo](@IndustryName nvarchar(50) output,@CompanyName nvarchar(50) output,@PlantName nvarchar(50) output,@GroupName nvarchar(50) output,@UserName nvarchar(50) output )asbegindeclare @AuidtID as varchar(30)Select @IndustryName=Industry_Name from Industry whereIndustry.Ind_Id_PK =(Select Audit_Industry from Audits whereAd_ID_PK=@AuidtID)Select @CompanyName=Company_Name from Company whereCompany.Cmp_ID_PK =(Select Audit_Company from Audits whereAd_ID_PK=@AuidtID)Select @PlantName=Plant_Name from Plant where Plant.Pl_ID_PK=(Select Audit_Plant from Audits where Ad_ID_PK=@AuidtID)Select @GroupName=Groups_Name from Groups whereGroups.G_ID_PK =(Select Audit_Group from Audits whereAd_ID_PK=@AuidtID)Select @UserName=Login_Uname from RegistrationDetails whereRegistrationDetails.UID_PK =(Select Audit_Created_By fromAudits where Ad_ID_PK=@AuidtID)SELECT Ad_ID_PK, Audit_Name, @IndustryName, @CompanyName, @PlantName,@GroupName, Audit_Started_On, Audit_Scheduledto, @UserName FROMAudits where Audit_Status='Active'end U can see here different parameters,my requirement is that iam havingID's of Industry,company,plant,group,username stored in a table calledPcra_Audits and i must display their related names in the front end.so this is the query iam using for that. Data in the database:Commercial83312 2 2 2 1 1 InactiveHere u can see 2,2,2,1,1 these are the IDs ofindustry,company,plant,group and username and Commercial83312 is tehaudit ID.now i want to display this data in teh front end as i cannot displaythe IDs i am retrieving the names of the particular IDs from therelated tables.Like iam getting name of the IndustryID from Industry Table,in thesame way others too.when iam running this procedure iam getting the gridview blank.iam passing the output parameters:@IndustryName nvarchar(50) output,@CompanyName nvarchar(50) output,@PlantName nvarchar(50) output,@GroupName nvarchar(50) output,@UserName nvarchar(50) outputinto the function in the frontend and iam calling that into the pageload method.please help me with this.
Hi all,I have a gridview that bound to a SqlDataSource called SqlDataSourceGridView. I have enabled Edit in my GridView, but I do all the updating in code behind with stored procedure (using onRowUpdating). Now each time when I click "Update", the update went through and all the data got updated, but I received this error: Updating is not supported by data source 'SqlDataSourceGridView' unless UpdateCommand is specified.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NotSupportedException: Updating is not supported by data source 'SqlDataSourceGridView' unless UpdateCommand is specified. What do I need to do to fix this problem?Thanks a lot.
i have a search page having four text boxes like name,accountnumber,ssn..etc we have to search the database by these values. but even if we give value in one text box keeping the others null the stored procedure have to serach and get the values. and we display it using gridview control.
here is the stored procedure i wrote.but its not working.its not giving any erros...but its not showing any values.
AS BEGIN if(@name!=null AND @ssn!=null AND @accountnumber!=null) select * from Userinfo where name=@name AND ssn=@ssn AND accountnumber=@accountnumber else if(@name=null AND @ssn!=null AND @accountnumber!=null) select * from Userinfo where ssn=@ssn AND accountnumber=@accountnumber else if(@name=null AND @ssn=null AND @accountnumber!=null) select * from Userinfo where accountnumber=@accountnumber else if(@name!=null AND @ssn=null AND @accountnumber!=null) select * from Userinfo where accountnumber=@accountnumber AND name=@name else if(@name!=null AND @ssn=null AND @accountnumber=null) select * from Userinfo where name=@name else if(@name!=null AND @ssn!=null AND @accountnumber=null) select * from Userinfo where name=@name AND ssn=@ssn else if(@name=null AND @ssn!=null AND @accountnumber=null) select * from Userinfo where ssn=@ssn
end
table name is userinfo
please help me with this. its very urgent. thanx for your help in advance.
Hi. I have a datasource that depend on parameter A. Parameter A get his values from query and have a defualt value. Parameter B get his default value from query that depend on parameter A.
Now, whan I run the report, parameter A get a value and then parameter B get his value and the datasource run OK.
But the problem is that when I'm changing the A value (from the value list) - The datasource run fine but Parameter B stay with the old value with out any change.
Does any one know how to solve it. I'll be happy to give more explanation if it isn't clear enough.
I am wondering if it is possible to have a report generated by RS refresh periodically automatically. This could be realized by inserting a few lines of JavaScript to the report including the reload() function, but I do not know if there is anyway to do such thing.
I had an interesting problem come up today. I have a report that when you preview on vs or click view report on the report server, the report continually refreshes itself. I cannot see that I have written anything different in this report than any other report.
I saw one other append here on a continually refreshing report but that was linked to a document map and this report has not document map.
Has anyone seen this problem of a continually refreshing report?
It's not a big deal as I figure I will just have to write it from scratch again, but I am interested to see if I can stop it before I re-write it.
and every time i restart and put it back up ,,,,it rewinds the database
the only way i can prevent this is if i restart the server
wait a phew hours then put it back up ,,"which makes it the same way it was when i logged off"
i was told that sql database servers refresh every hour.
is there a way i can make it refresh before i restart it so then i can put the server straight back up
if i restart the server back up straight away it does a rewind for some reason.
tech ::
the server does a rewind because it wouldn't have saved the game so to speak - as in updated everyone's characters. So yes waiting is the only way as far as I know to save the game.
I have a report in RS that uses a cube as a data source. I made some changes to a cube in AS 2005 and I am not sure how I can refresh my existing datasets without deleting everything?
Im having a report.When i click on one item in Report it navigate to second Report.Here Second report acts as a Child report.Whne i click on refresh button it goes back parent report.Some times i get error
" Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request. "