I have been stuck on this problem for over a week, and have ripped out about all of my hair, so here it goes.
I am working on a portfolio on a website that administrators are allowed to update, but the public may only view....easy enough? The grid has three parameters; CatID, Descrip, and Pic - as seen below.
Now as I was looking around on the web I saw many people converting the path of the image to binary and the casting it to the DB, and likewise retrieving it from the DB as binary and converting it to an image, the problem is, I don't know how to do this.
Any help to ease my troubles is apprechiated greatly.
Edit: Also I am not totally sure what the '<%Eval("Pic") %>' is doing, it was autofilled for me.
Edit again: Another thing, if I replace any of the ImageUrl to an image path on the computer it does fill the space in the gridview/detailsview. However, with both cases I get a Operand type clash: nvarchar is incompatible with image error.
I am attempting to setup a Master-Details with GridView/DetailsView but I can't seem to find any information on using a stored procedure that requires parameters with the SqlDataSource control. SelectCommandType specifies that you are using a stored proc. SelectCommand specifies the name of the proc, but I haven't found any information on how to pass a parameter to the stored procedure.Is it even possible or do I have to forget about using the DetailsView control altogether?
Hello,Intended scenario:I have a grid view that displays a particular column using a repeater to display data stored in a separate lookup table. In the EditTemplate I drop the repeater and utilize a checkboxlist to allow for updates to be made. After the sqlUpdate command is processed on the main table I call a sub to loop through the checkboxlist and update the lookup table accordingly. Problem: I can't seem to access the checkboxlist in the edit template. I have a 'updateServices' procedure that is called by the main sql updated event. I call findcontrol on the gridview but I keep getting this error: "Object reference not set to an instance of an object". Here is my code: Protected Sub updateServices(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) Handles sql_respParty.Updated 'Filing type was modified, update lm_Responsible_Party_Filing_Type If FilingTypeChanged = True Then Dim command As System.Data.Common.DbCommand = e.Command 'Insert service_filing_type Dim li As ListItem Dim checkBoxServices As CheckBoxList = grid_parties.FindControl("checkBoxServices") sql_allFilingTypes.InsertParameters("Party_id").DefaultValue = command.Parameters("@Party_id").Value.ToString For Each li In checkBoxServices.Items If li.Selected = True Then sql_allFilingTypes.InsertParameters("Filing_Type_id").DefaultValue = li.Value sql_allFilingTypes.Insert() Response.Write(" check: " + li.Value.ToString) End If Next End If End Sub Thank you.
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 am having a problem with MMSQL BLOB with VB, Sorry to say I am new in Programming using VB 6 and MSSQL and I have never touch BLOB in my live.
I just wish anyone could give me any ideal, like, white pages, or manual on how do I insert BLOB data (Images) to MSSQL 2000 database using VB 6. I need to know exspecially the VB Code and the SQL Portion if you have a store procedure code for that it will be nice. :confused:
For inserting current date and time into the database, is it more efficient and performant and faster to do getDate() inside SQL Server and insert the value OR to do System.DateTime.Now in the application and then insert it in the table? I figure even small differences would be magnified if there is moderate traffic, so every little bit helps. Thanks.
Hi,I am using detailsview to update my database and got a question regarding datetime format. Here is part of my code: <asp:TemplateField HeaderText="Project Deadline"> <EditItemTemplate> <asp:TextBox ID="txtDeadline_edit" runat="server" Text='<%# Bind("pro_app_deadline") %>'></asp:TextBox> <asp:CompareValidator ID="txtDeadlineedit_validator" runat="server" ErrorMessage="Not a valid date format" ControlToValidate="txtDeadline_edit" Operator="DataTypeCheck" Type="Date"></asp:CompareValidator> </EditItemTemplate> <ItemTemplate><asp:Label ID="txtDeadline" runat="server" Text='<%# Eval("pro_app_deadline") %>'></asp:Label> </ItemTemplate></asp:TemplateField> Since the format of my parameter 'pro_app_deadline' is datetime, it get stored as YYYY-MM-DD hh:mm:ss in datebase. If I want to validate user's input like above way, it always fails since hh:mm:ss append to YYYY-MM-DD. My question is, is there some way I can avoid hh:mm:ss? Thanks a lot!
Can someone please tell me what I am doing wrong... I have a simple webform that has contains a GridView and a DetailsView. Once the GridView is populated the user simply selects a record from the list. The DetailsView is them populated with all of the data from the selected record. The DetailsView is bound to a SQL DataSource/CustomerData. I have made sure that the DV control has the Edit/Update Command listed. The user can click the Edit button and successfully edit the fields but when the user clicks the "Update" button I am getting the following message. Updating is not supported by data source 'CustomerData' unless UpdateCommand is specified Why isnt the control handling the Update. Many Thanks!!!! T
Hi everybody,I have a little Problem with an update and Detailsview.I have 2 table (tblUser - uid,uName,rId) and (tblRole - rId, rDescription) In my update I don't want to use the roles id, I want to use the roles Description.Via sql I do a update the role to Admin like that UPDATE tblUser SET rId = (SELECT rId FROM dbo.tblRoles WHERE (rDescription = 'Admin')) But I don't get it to work for the detailsview update
i get Incorrect syntax near 'nvarchar'.Must declare the scalar variable "@BookingID".
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.Data.SqlClient.SqlException: Incorrect syntax near 'nvarchar'.Must declare the scalar variable "@BookingID".
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[SqlException (0x80131904): Incorrect syntax near 'nvarchar'.Must declare the scalar variable "@BookingID".] System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +857354 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +734966 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188 ...i am using the Edit feature of the detailsview, seems like the datatype is wrong? ID are int (in my DB, BookingID is int), and also its readonly it should not be updating in the first place right? --------------------------------Any way to debug whats in "new" values? ItemUpdating? how to do it?
Hi, Can anyone tell me why my Update attempts are not working? Here is my code: <body> <form id="form1" runat="server"> <div> <asp:DetailsView ID="DetailsView1" runat="server" Height="50px" Width="125px" AutoGenerateEditButton="True" AutoGenerateRows="False" DataSourceID="SqlDataSource1" DefaultMode="Edit"> <Fields> <asp:BoundField DataField="City" HeaderText="City" SortExpression="City" /> </Fields> </asp:DetailsView><asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionStringListings %>" SelectCommand="SELECT [City] FROM [Listings]" UpdateCommand="UPDATE [Listings] Set [City]=@City WHERE [ListingID]=@ListingGuid "> <UpdateParameters> <asp:Parameter Name="City" /> <asp:Parameter Name ="ListingGuid" /> </UpdateParameters> </asp:SqlDataSource>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label> <asp:Label ID="Label2" runat="server" Text="Label"></asp:Label> </div></form> </body> And here is my code behindProtected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load ListingGuid = Request.QueryString("GUID") End SubProtected Sub DetailsView1_ItemUpdated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewUpdatedEventArgs) Handles DetailsView1.ItemUpdated Label1.Text = "updated" Label2.Text = ListingGuidEnd Sub Please let me know what I am doing wrong?
Hi I have a Page with a DetailsView and SqlDataSource. When Editing the DetailsView the Sql;DataSource UpdateCommand does not seem to pick up the @parameters of the form fields. I have used OnItemUpdating to view all Keys/OldValues/NewValues passed into the UpdateCommand but nothing seems to be picked up. When I place a value into UpdateCommand it updates correctly but does not when I use the form. At this stage I have simplified the code down to typical Master-Details Pages (Separate) using a QueryString to filter the SelectCommand. But nothing seems to work. Please help! I have wasted so much time trying to resolve this and I am on deadline and need this to work. Thanks Dave
Hello Am developing a web site using ASP.net 2.0. I have page to manage the employees information in term of viewing, inserting and updating. The problem is that the updating part doesn't work and it didn't give me any error messages. My code is as following: <%@ Page Language="VB" AutoEventWireup="false"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Protected Sub DetailsView1_ItemInserted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewInsertedEventArgs)
If (Not e.Exception Is Nothing) Then
ErrorMessageLabel.Text = "An error occured while entering this record. Please verify you have entered data in the correct format." e.ExceptionHandled = True End If GridView1.DataBind() End Sub
Protected Sub DetailsView1_ItemUpdated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewUpdatedEventArgs)
GridView1.DataBind() End Sub
Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
DetailsView1.ChangeMode(DetailsViewMode.ReadOnly) End Sub
Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
DetailsView1.ChangeMode(DetailsViewMode.ReadOnly) End Sub
Protected Sub GridView1_PageIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
DetailsView1.ChangeMode(DetailsViewMode.ReadOnly) End Sub
Protected Sub GridView1_Sorted(ByVal sender As Object, ByVal e As System.EventArgs) DetailsView1.ChangeMode(DetailsViewMode.ReadOnly) End Sub
Hi,I'm trying to create a registration page that I've divided into multiple pages (first page for basic details, next page for address, etc.). I insert the record in the first page, and update it in the other pages. I pass the newly created ID to the other pages using the Page.PreviousPage property. In the second page, I have the SqlDataSource configured as "SELECT * FROM [Table] WHERE ID = ?", and the UpdateCommand is "UPDATE .... WHERE ID = ?". In Page_Load, I am updating the SelectCommand to "SELECT ... WHERE ID = " & intID, and the UpdateCommand similarly. The I do a dtlsvw.Databind()But when I go to the next page (the newly created ID is being passed properly), the update doesn't do anything. The new record doesn't contain the values in the detailsview. Can somebody help me out? Thanks,Wild Thing
For some reason I can't make the stars align. Could someone spot the problem here? I'm looking to select the Identity of my last inserted record in the code behind my DetailsView. Here are the relavent bits: Stored Procedure:ALTER PROCEDURE usp_EW_INSERTMajor @StartDate datetime, @Finishdate datetime, @ProjectName nvarchar(1000), @WorkCell nvarchar(1000), @JobName nvarchar(1000), @PartName nvarchar(1000), @StatusID int, @ResponsibleID int, @FacilityID int
AS Set nocount on
DECLARE @ProjectID int /*This saves the bits to the Project table*/ INSERT INTO EW_Project (ProjectTypeID,FacilityID,StartDate,FinishDate,Status,EmployeeID) VALUES(1,@FacilityID,@StartDate,@FinishDate,@StatusID,@ResponsibleID)
/*This saves the bits to the Major table*/
SET @ProjectID = SCOPE_IDENTITY() INSERT INTO EW_MajorBasic(ProjectID,ProjectName,WorkCell,JobName,PartName) VALUES (@ProjectID,@Projectname,@WorkCell,@JobName,@PartName)
Code-Behind: Sub DetailsView1_ItemInserted(ByVal sender As Object, ByVal e As DetailsViewInsertedEventArgs) Handles DetailsView1.ItemInserted Dim newID As Integer = e.Values("ProjectID") testlabel.Text = newID End Sub
To be clear, everything is working. When I come to this page with an ID, the records display fine (Select works). The Update and Delete work just fine. The Insert works fine too. It's just that the ItemInserted part does not want to grab the ProjectID. Specifically, testlabel displays a Zero.
Hi all,I want to be able to implement what the following site shows in regards to dynamically displaying Data views of various types: http://quickstarts.asp.net/QuickStartv20/aspnet/samples/data/GridViewMasterDetails_vb.aspx I follow everything to the 'T' but for some reason all my data views are showing even before any initial selection is made in the drop down. How can I have certain grids appear only after a selection from another control has been made?Thanks in advance,Nick
I'm trying to execute a stored procedure within the case clause of select statement. The stored procedure returns a table, and is pretty big and complex, and I don't particularly want to copy the whole thing over to work here. I'm looking for something more elegant.
@val1 and @val2 are passed in
CREATE TABLE #TEMP( tempid INT IDENTITY (1,1) NOT NULL, myint INT NOT NULL, mybool BIT NOT NULL )
INSERT INTO #TEMP (myint, mybool) SELECT my_int_from_tbl, CASE WHEN @val1 IN (SELECT val1 FROM (EXEC dbo.my_stored_procedure my_int_from_tbl, my_param)) THEN 1 ELSE 0 FROM dbo.tbl WHERE tbl.val2 = @val2
SELECT COUNT(*) FROM #TEMP WHERE mybool = 1
If I have to, I can do a while loop and populate another temp table for every "my_int_from_tbl," but I don't really know the syntax for that.
Hi, any suggestions on why my label doesn't show the current user.identity.name when used in a detailsview (header-field or insert-field), when it works just fine placed directly on my page ? Please help ! (I want to bind myLabelX.Text to a db-table, but it contains no value..) codebehind : 1 using System; 2 using System.Data; 3 using System.Configuration; 4 using System.Collections; 5 using System.Web; 6 using System.Web.Security; 7 using System.Web.UI; 8 using System.Web.UI.WebControls; 9 using System.Web.UI.WebControls.WebParts; 10 using System.Web.UI.HtmlControls; 11 12 13 public partial class Test_2 : System.Web.UI.Page 14 { 15 16 protected void Page_Load(object sender, EventArgs e) 17 { 18 if ((!IsPostBack)) myLabelX.Text = User.Identity.Name; 19 } 20 21 }
I am using a stored procedure to update data while in detailsview.I am having a rough time. Dont know why this wont workthanks a lotheres my codeALTER PROCEDURE UpdateCustomerInfo ( @CustomerID as INT, @LName as varchar(50), @FName as varchar(50), @Dept as varchar(50)=NULL, @PhoneType as varchar(50)=NULL, @OfficeType as varchar(50) = NULL, @Ext as Int=NULL, @BridgeExt as int=NULL, @Workstation as varchar(50)=NULL, @OldPrinters as varchar(50)=NULL, @NewPrinters as varchar(50)=NULL, @PhoneImg as varchar(50)=NULL, @OfficeImg as varchar(50)=NULL, @Complete as Bit=NULL, @FaxModel as varchar(50)=NULL, @FaxNumber as varchar(50)=NULL, @ConfPhone as varchar(50)=NULL, @ConfExt as varchar(50)=NULL, @ReutersDacsId as Varchar(50)=NULL, @Bloomberg as Varchar(50)=NULL, @NewFloor as Int=NULL, @OldFloor as Int=NULL )AS UPDATE CustomerInfo SET LName = @LName, FName = @FName, Dept = @Dept, PhoneType = @PhoneType, Ext = @Ext, BridgeExt = @BridgeExt, Workstation = @Workstation, OldPrinters = @OldPrinters, NewPrinters = @NewPrinters, OfficeImg = @OfficeImg, PhoneImg = @PhoneImg, Complete = @Complete Where CustomerId = @CustomerId UPDATE Extras SET CustomerID = @CustomerID, FaxModel=@FaxModel, FaxNumber=@FaxNumber, ConfPhone=@ConfPhone, ConfExt=@ConfExt, ReutersDacsId=@ReutersDacsId, Bloomberg=@Bloomberg where CustomerID = @CustomerID RETURN
I have a SQLDataSource bound to a DetailsView. In which event would I catch a Primary Key violation? Would be an event of the SQLDataSource or the DetailsView? And which particular event? A small example would be great. Thx.
I have 2 Gridviews and a DetailsView for each GridView. The first Gridview and DetailsView work fine and I can Insert, Delete and Update the DetailsView just fine. However the second Gridview/DetailsView will only let me Insert but not Delete or Update. When I click on the "Delete" button it just ignores me. If I do an "Edit", when I try to click on the "Update" button it is ignored again and I have to click on "Cancel". I don't get any error messages...
Hi all,We're selecting data from our database, FirstName, LastName, MobileNumber etc.We're using the detaials view function to return it in a table upon selection. However all of the variables are returned as they are in the database, ie: without spaces. We tried putting in spaces by selecting "AS what ever", but MSSQL does not seem to like spaces.Any ideas?Thanks
Just wonder whether is there any indicator or system parameters that can indicate whether stored procedure A is executed inside query analyzer or executed inside application itself so that if execution is done inside query analyzer then i can block it from being executed/retrieve sensitive data from it?
What i'm want to do is to block someone executing stored procedure using query analyzer and retrieve its sensitive results. Stored procedure A has been granted execution for public user but inside application, it will prompt access denied message if particular user has no rights to use system although knew public user name and password. Because there is second layer of user validation inside system application.
However inside query analyzer, there is no way control execution of stored procedure A it as user knew the public user name and password.
Looking forward for replies from expert here. Thanks in advance.
Note: Hope my explaination here clearly describe my current problems.
I've been playing around with the new data controls (DetailsView,FormView) and have been having problems when attempting to update a record that has a uniqueidentifier as its primary key.I get the error message: Object must implement IConvertible. 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.InvalidCastException: Object must implement IConvertible.I gather this is because there is a bug that has propagated from the beta version.One suggested work around is from http://64.233.183.104/search?q=cache:GDjA62POtgcJ:scottonwriting.net/sowBlog/archive/11162005.aspx+Implicit+conversion+from+data+type+sql_variant+to+uniqueidentifier+is+not+allowed.+Use+the+CONVERT+function+to+run+this+query.&hl=en The crux of the problem, it appears, is that the <asp:Parameter> value for the uniqueidentifier field is, by default, set to Type=�Object�. To fix this, simply remove the Type property altogether. That is, change the SqlDataSource parameter setting from something like: <asp:SqlDataSource ...> <InsertParameters> <asp:Parameter Name=�UserId� Type=�Object� /> ... </InsertParameters></asp:SqlDataSource> to: <asp:SqlDataSource ...> <InsertParameters> <asp:Parameter Name=�UserId� /> ... </InsertParameters></asp:SqlDataSource> This change worked for me; once the Type was removed the exception ceased and the updates/inserts worked as expected.Unfortunately this only partially worked for me as while it is fine for deletes it won't work for updates.If anyone can help shed any light on this I would greatly appreciate it.CheersMark
Hi, I use WVD and SQL Express 2005. I have a table “SignIn� that one of fields inserted automatically by getdate() And I have GridView that I use to display this table because I would like take advantage of GridView sorting and paging methods that are embedded in. Currently I display all records at once.
My problem is how to make the GridView show today’s records only. I tried this code below, but I get only this message “There are no data records to display.�
Hi I have a business search box and gridview pair. When the user enters a business name, the search results are displayed. I also generate a "more information" link which takes the user to a new page, passing the business name ("memberId")to this page (see the template field below). The problem I have is if the name contains a QUOTE (') or other special characters. The "memberId" is chopped off at the quote (e.g. "Harry's Store" is passed as "Harry"). Can anyone tell me a way around this please? Is there anything I can do with the Eval method? Kind regards, Garrett
HiI need to add in gridview control asp code "delete from t1 where id=@id1"how to declare @id1 because the server give me mistake down is the code of asp i use GridView how i can link @id with field there id???Thank u and have a nice daybest regardsthe code if u need it i use c# <ASP:SQLDATASOURCE id=SqlDataSource1 <br ConnectionString="<%$ ConnectionStrings:libraryConnectionString %>" runat="server"><BR></ASP:SQLDATASOURCE></ASP:BOUNDFIELD>
the usual way to bid a gridview is to data soursce is there a way to do the folowing , creat a data table from the gridview shown valus " currunt page "
I have a gridview that has AllowSorting="true" however I need to implement my own sorting because I have DateTime and Integer data types in several of the columns and I don't want an int column sorted like 1,12,2,23,3,34,4,45,5,56, etc. So, I've added SortParameterName="sortBy" and adjusted my stored procedure to accept this. For only ASC sorting, I've got ORDER BY CASE WHEN @sortBy='' THEN DateCreated END, CASE WHEN @sortBy='DateCreated' THEN DateCreated END and so on. However, columns can also be sorted with DESC. I tried CASE WHEN @sortBy='DateCreated DESC' THEN DateCreated DESC END, but I get a syntax error on DESC. How can I do this?
Hello:I have add a DropDownList to my GridView and binded the dropdownlist to a field from a select statement in the SQLDataSource. I have EnabledEditing for my GridView. The GridView is populated with information from the select statement. Some of the information returned from the select statement is null. The field where the dropdownlist is binded it is null in some cases and does not have a value that is in the dropdownlist so I get and error when I attempt to do an update. 'DropDownList1' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value Is there a way to get around this besides initializing all the columns in the table that are going to be binded to a dropdownlist to a value in the dropdownlist?
