Delete Data From 2 Tables With Relationship?
Dec 1, 2010i have 2 tables which are connected with FK.
StdPErsonal_info.Pk = Sid and student.FK = Sid
i want to use delete query which is delete the data from both tables in single query
i have 2 tables which are connected with FK.
StdPErsonal_info.Pk = Sid and student.FK = Sid
i want to use delete query which is delete the data from both tables in single query
I want to display details STRONGLY TYPE In a view this would be done as normal through the list, hiting the details link. however a table of notes is connected to the main table of info. i want to us the id of the main table item to list all the notes that have been entered about the record in the main table. how do i do this
View 1 Repliesi am working with multiple table with some same columns, so here i want to use the concept of primary key and foreign key.primary key is very easy to put on any fields but, i dont know how to give foreign key and how to create relationship between same fields of two table.
View 2 RepliesI have 2 objects, that can exist seperately - lets say man and woman, neither needs to know about the other. But once they get get "married" it can only be married to each other. In other words, I'm trying to create 2 tables, 1 table has a FK to the other, that is NULLABLE. When i try to set the relationship to 1-to-1 via the dmbl, it wont let me - which makes sense. Ultimate i want to
1) create a women (no knowledge of a man)
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Is this even possible? If i do a one-to-many - how can i make it act this way? At the business layer? create a partial class and override stuff?
1) create a women (no knowledge of a man)
I have two entities (Customer and CustomerRole) and would like to declare many-to-many relationship between them. I can do using the following code:
modelBuilder.Entity<CustomerRole>()
.HasMany(cr => cr.Customers)
.WithMany(c => c.CustomerRoles)
.Map(m => m.ToTable("Customer_CustomerRole_Mapping"));
But it creates the relationship (and the third mapping table) with cascade delete switched off by default. How can I tell EF to create the relationship with cascade delete switched on when using many-to-many?
I am having trouble deleting three table rows using SQL. The middle table is a junctional table allowing a one to many relationship between table 1 and table 3.
Table 1
Order_Id int Primkey FK1
Name Varchar
Date Datetime
Table 2
Order_Id int PrmKey FK1
Item_Id int PrimKey FK2
Table 3
Item_Id int PrimKey FK2
Description Varchar
Price money
Acually, I want to delete all rows associated with any particular order.
IDE: MS Visual Studio 2008 / SQL Server 2005 Express / SQL Server Management Studio Express 2005
Skills: BeginnerI was trying to delete a table from my database ASPNETDB.MDF ,that DB was previously used for User login information i made it by using asp.net built in login support by opening ASP.NET configuration ,but now i want to built my own simple login control...so i want to remove all the tables made by ASP.NET configuration.I got this error when deleting one of the table"Could not drop object 'dbo.aspnet_Applications' because it is referenced by a FORIEGN KEY constraint"
How can i delete tables or procedures from ADO.Net Entity Framework3.5 data model?
View 2 Repliesim doing an album page just like facebook album
Now im trying to allow deleting album function in which, when i click a button or linkbutton,
the entire album will be deleted including all the photos within that particular album
Album and photo is in two different table in my sql
im using the sqldatasource to set the delete parameter
DeleteCommand="DELETE FROM [Album] WHERE [AlbumID] = @AlbumID"
is there any way i can insert another delete command in the same sqldatasource or other way to do it?
i duno how to do with store procedure.
I've created a membership system based on asp.net 2. There are other tables that store user information, such as emails sent etc. I've created a users table based on the TableProfileProvider. My question is concerning deleting the member
Is it OK to delete the member from the aspnet_membership table and roles related tables using Membership.DeleteUser, though keep all the custom tables and the information including the information in the Users table created by the TableProfileProvider? or can you foresee problems?
I am using bulk insert concept to export the data from dat file to tables(Two tables). I am using the temporary table for to do the calculation and insertion to two tables. My problem is whenever I selecting the temp table data after the execution of bulk insertion , the order is changing .I need to get the order as it is in file order(csv,dat,txt).
View 5 Repliesi have master table and it has related record in the child record
there are about four records in the detail table containing master id
how can i get the data group by master id ?? i want a sing row record
suppose:
order 1: item1 : item :2 item 3: item 4 in this shape
I have data coming from two tables with a foreign key relationship - one User table containing users of the web application, and one Page table containing details about pages visited by each user.I would like to be able to view these data in a gridview or the like on a page. It's easy enough to just show the User table data like so (I'm using the Entity Framework and LINQ):
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But how can I show the Page details? I'm not bent on any particular way of showing it, but the only idea I've been able to come up with is to have a dropdown list for each user in a column. But I can't figure out how to get the page data into such a dropdown list. The tables are associated with the primary/foreign key UserID.The closest I've come to finding something similar to this is this for Linq2SQL: http://weblogs.asp.net/scottgu/archive/2007/07/16/linq-to-sql-part-5-binding-ui-using-the-asp-linqdatasource-control.aspx , and this using more traditional data access: ttp://www.highoncoding.com/Articles/169_DropDownList_Inside_GridView__Method_1_.aspx . Either way, regardless of data access technology, I can't relate these solutions to my example and get it to work
I have an excel sheet which has several parent records/rows and every parent row/record has several child sub-records under it. I have a field called ID which is of the type String as it contains a mixture of characters and numbers and is common for both parent and child records. How do I store the parent and child records in separate database tables, retrieve them and display them in a nested gridview?
View 1 RepliesI'm quite confused about how to implement a many-to-many relationship and my domain model. Let's say I'm creating a recipe box web application and I have three tables called Category (categoryID, categoryName), RecipeCategory (categoryID, recipeID), and Recipes (recipeID, recipeName, recipeDescription). If I were to present this information as an ASP.NET application and wanted to insert a new recipe and category, am I responsible for writing the logic to insert the information in the RecipeCategory table OR is it possible to set RecipeCategory.categoryID and RecipeCategory.recipeID automatically with default values based on newly inserted records in the related tables? If I'm responsible for writing the logic to insert values in RecipeCategory.categoryID and RecipeCategory.recipeID is that a trigger? What's the best way of implementing this?
View 2 RepliesI am looking for some feedback on how to display data from a database where there is a 1 to many relationship. For example table A holds customer data such as name, address and table B will contain information on products that they have ordered. A customer can have multiple products ordered. How would you display the records as one record in a datalist or another control as oppose to the number of records based upon what they have ordered. Would this be accomplish by nesting the datalist or the control used or by the SQL statement?
View 5 RepliesI have two tables - dt(Mods) and dt(Mods2) - I am trying to create a relationship between them. So dt(mods) has department, category and item columns dt(mods2) has parentDept, Parentcategory and parentItems Now I need add them to a dataset with a relationship key - Something like this but with three cloumns
Dim ParentCol As New DataColumn, ChildCol As New DataColumn
How do I reference the delete button to add the delete confirmation box when I have both the Edit and Delete buttons as the last two columns in the Gridview control. The following code works fine without any issues when I have the delete button only:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType != DataControlRowType.DataRow) return;
int lastCellIndex = e.Row.Cells.Count - 1;
Button db = (Button)e.Row.Cells[lastCellIndex].Controls[0];
db.OnClientClick = "if (!window.confirm('Are you sure you want to delete this record?')) return false;";
}
But, when I have both the Edit and the Delete buttons, I get the following error when I click the edit button while the delete button works fine.
Specified argument was out of the range of valid values. Parameter name: index
How do I reference the delete button so the edit button is not affected in this case?
Using "Enable Delete" from Gridview control, I can delete (besides, update, sort, paging, etc) data from the database (this is done automatically). However, how can I delete the actual image that resides in my image folder (i.e. from "pix" folder )? What is the best way to delete image? If using code behind, how? Please write a full code for me. Here is my source code.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="photoID"
I am interested in building an intranet document management system to be used from Internet Explorer using ASP.net, VB.net, and MS SQL Server but have no experience in doing a project like this. Supported file types would be txt, pdf (from scanner or imported from file system), or jpg. What concepts I should look at researching/learning about to build the system in a way that files will be stored as small as possible, retrieved and displayed quickly, and secured. The users would be spread out over a regional area covering 4 states.
View 5 RepliesI have a grid contol that allows delete what I would like to have is someway to say Are you sure you want to delete?I found this code online, and tried it but it did not work, Do I need something more some behind code maybe?Here is what I found online:Adding 'Delete Protection' to controls If you use a control set up to allow Delete, the Delete button gives a straight delete without any warning, which can be dangerous.To give a warning dialog box, add an OnClientClick event to the Delete button, as follows.
<asp:LinkButton
ID="DeleteButton"
runat="server" CausesValidation="False"
CommandName="Delete"
OnClientClick="return confirm('Are you sure you want to delete this record?');"
Text="Delete">
</asp:LinkButton>
Here is my code: You can see where I added the code from above.
<ItemTemplate>
ID:<asp:label id="IDLabel" runat="server" Text='<%# Eval("ID") %>' /><br />
Name:<asp:label id="NameLabel" runat="server" Text='<%# Bind("Name") %>' /><br />
Destination:<asp:label id="DestinationLabel" runat="server" Text='<%# Bind("Destination") %>' /><br />
OutDate:<asp:label id="OutDateLabel" runat="server" Text='<%# Bind("OutDate") %>' /><br />
ReturnDate:<asp:label id="ReturnDateLabel" runat="server" Text='<%# Bind("ReturnDate") %>' /><br />
LeaveTime:<asp:label id="LeaveTimeLabel" runat="server" Text='<%# Bind("LeaveTime") %>' /><br />
ReturnTime:<asp:label id="ReturnTimeLabel" runat="server" Text='<%# Bind("ReturnTime") %>' /><br />
ContactNumber:<asp:label id="ContactNumberLabel" runat="server" Text='<%# Bind("ContactNumber") %>' />
<asp:linkbutton id="EditButton" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" />
<asp:linkbutton id="DeleteButton" runat="server" CausesValidation="False" CommandName="Delete" OnClientClick="return confirm('Are you sure you want to delete this record?');" Text="Delete" />
<asp:linkbutton id="NewButton" runat="server" CausesValidation="False" CommandName="New" Text="New" />
</ItemTemplate>
I want to make an conformation dialog on auto generated delete button in detail view that when user press delete dialog or conformation box appear that u sure u want to delete how can i do this?
View 1 RepliesI am using Sharepoint Designer and trying to insert a Delete button into a gridview. I added this to the top of my ASPX:
<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"
Assembly="Microsoft.SharePoint, Version=11.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c" %>
and I added this as a Gridview column:
<SharePoint:DeleteItemButton
runat="server"
ID="CustomFormDeleteItemButton"
ControlMode="Edit"
/>
and this is the error I get:
An error occurred during the processing of . System.Web.UI.WebControls.DataControlFieldCollection must have items of type 'System.Web.UI.WebControls.DataControlField'. 'SharePoint:DeleteItemButton' is of type 'Microsoft.SharePoint.WebControls.DeleteItemButton'.
I'm using Asp.Net's Dynamic Data Website project type.I've created a db that has one to onerelationship between two tables specified using a foreign key, (this could be one to many but I've used the linq designer to change it to a one to one relationship).i.e. I have a table Invoice and table CreditNote that takes an Invoice_Id as a foreign keyI was hoping that when I navigated to CreditNotes/Insert.aspx that it would display the a list of InvoiceIds in a dropdown list. It almost does this - it creates dropdownlist but only populates option value and not the text so I get something like this in the html source (notice only the value is populated - which looks empty to the user):
<select>
<option value="someInvoiceId"></option>
<option value="someInvoiceId"></option>
</select>
I created a ListView and attempted to delete a record using the delete button and native procedures. It failed and threw an error.Pass in a valid dictionary for delete or change your mode to OverwriteChangesIn researching this issue, it appeared there is a problem with the list view when deleteing and
ConflictDetection is set to
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