Trying to check if an insert of a new record into an SQL table is happening successfully. I can see that the insert is occuring OK but am not getting the verification to happen.
I'm a little new to C#, I'm thinking it may be in the syntax I'm using in my method in the .cs file line 45. Can't seem to fix it right though.
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[Code]....
Using C#.NET and VWD 2008 Express
I'm looking for a hand with:
When inserting, i would like to check if the record exists in the table, then if it doesn't, insert it, else either redirecting to a different page, or showing a message box saying "Record already exists" ...
I want to check if the record is already exists before insert using Ajax ActionLink in Create View. I am getting error 'Object reference not set to an instance of an object.' Here is a code in View :
<div class="editor-label">
<%= Html.LabelFor(model => model.PolicyId) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.PolicyId) %>
<%= Html.ValidationMessageFor(model => model.PolicyId) %>
<em>can not be changed later.</em>
//error occurs here
<%= Ajax.ActionLink("Check", "CheckIfExists", "Life", new { PolicyId = Model.PolicyId }, null)%>
</div>
And Controller action :
public JavaScriptResult CheckIfExists(string PolicyId)
{
if (lifeRepository.IsExists(PolicyId))
return JavaScript("alert(' Already Exists');");
else
return JavaScript("alert(' Not Exists');");
}
how can i select a record from A table and insert into B table using linq?
View 2 RepliesI would like to check and see if a record exists before doing an insert. Here is the code I have tried:
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i need to call multi dropdown for products that retrieve product name from microsoft sql and get the price as the product is been selected from the dropdown for total amount for the customer.Example is for customer to buy 6 product.The client is to enter the number of product purchase and the 6 dropdown appears as he click ok button.And as the clients select the product from the dropdown the price sum up together before saving into database.
View 1 RepliesI have a SQL database that creates a record for every document uploaded by the user to the server. I want to check this table before a user uploads a document to ensure they don't upload a file with name that already exists.
I know how to make the connection and make the SqlCommand to query the table for an existing record. But I don't know how to check the record count from the sqlCommand I made.
Does that make sense?
Using myConnectionCheck As New SqlConnection(myConnectionStringCheck)
Dim myCommandCheck As New SqlCommand()
myCommandCheck.Connection = myConnectionCheck
myCommandCheck.CommandText = "SELECT * FROM Req_Docs WHERE Doc_Name =" & DocName
myConnectionCheck.Open()
myCommandCheck.ExecuteNonQuery()
End Using
I am selecting the date field in the 'dd-mm-yyyy' format by using SQL Codes(103,105...).While inserting I want the userto insert the date in same format(dd-mm-yyyy) but it will not happening as in SQL Server we need to insert the date in'mm-dd-yyyy' format.Pls send me insertion query in sql to achieve this.Pls respond me ASAP.
View 4 RepliesI want to insert a new record into a table. The table has relationships with other secondary tables, For example:
Table: Stores
Table StoreCategories (a store can have many of these)
I want to insert a new store, get its ID and insert some categories in one go.
How do I go about this?
i made two table and their repectively sp
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nw firstly i insert all value which appears on Default.aspx page and then display on grid..
but primary i couldn't work insert that value then after display grid..
I am developing an Asp.Net application, where I am sending a mail to the user's email address, if he forgets the password.
I want to check if the mail has been sent sucessfully or not.
Is there any method to know that for sure.
EDIT
In case if an email id does'nt exists, then would I detect a failure.
I have MyStudentList table having StudId,StudName,CourseId,Timing fields. There are number of entries here. I want to maintain their attendance.
I created a table StudentAttendance with fields StudId, AttendanceDateTime,AttendanceStatus(True/False) bit data type.
I fetched students list in GridView from MyStudentList table and want to display editable CheckBox. I just see student and able to tick it. The entry should be inserted in StudentAttendance table.
How i can implement it. First I will try on it.
has someone make ajax.actionlink for delete to work properly.After deleting the record successfully at the end it is not refreshing the page properly.the page refresh is my problem. i have defined the updatetarget id and returning view(model) from my controller but it is returning the master page with it.So the thing is that i am having a page with a page.I have used redirect as well which is not refreshing,
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abc is the id of the table From controller
View("ManageGroup,Model);
This is the first time i am using ms access database for the c# asp.net .
I am getting the following error when i try to insert the record.
Operation must use an updateable query.
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i Am using Special character while insert in the database. When i user single Quotes('), it shows an error that "Unclosed quotation mark after the character string" How can i over come this issue. But i want to insert the special characters"
View 5 RepliesI would like to show a modal ui-dialog when a record is successfully saved to the database.
View 8 RepliesMy insert is adding a record to the database in the call to the stored procedure in SQL Server, but a -1 is returned - Shouldn't it return 0 if the insert/update was successful?
Result = myCommand.ExecuteNonQuery();
As I am learning asp.net . when i try to insert record into msaccess table why it says -
Syntax error (missing operator) in query expression 'user1','cx0437@gmail.com' ,'12312456')'.
As i found the same code at the following link [URL] ....
Code:
protected void Button1_Click(object sender, EventArgs e) {
OleDbConnection con;
try{
using (con = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;" + @"DATA SOURCE=C:Database iershop.mdb")) {
con.Open();
[Code] ....
when i want insert a record i see an error like this Can't perform Create, Update, or Delete operations on 'Table(MainMenuLink)' because it has no primary key. with this codes:
MyLinqDataClassesDataContext db = new MyLinqDataClassesDataContext();
MainMenuLink li = new MainMenuLink { Link = "www.tprogrammer.com", LinkSubject = "subject" };
db.MainMenuLinks.InsertOnSubmit(li); [code]....
I'm very new on VWD, but I got the hang of it for the past 2 weeks(thank you for all the videos posted here in ASP.NET),but I'm really weak on the coding part(vb & c#),except for all the sample shown on the tutorials. Anyways, I have a simple project that
does insert, update & delete to SQL express using the details view. But to complete my project, I need to add a button that will create an event to restore the very last record inserted in SQL and display it back into the details view for minor modification
and nserted again as the newest record with the mod. I'm doing this so user, doesn't need to re-key-in redundant information, like names, original date & time etc, and just make modification on the description of the last record.....
i made one window base application in VS2008 (VB.net). i made one simple code where i can insert data.and after inserting i can see that data on grid.when i am inserting data insert query runs perfect.after that for debugging purpose i fire select query and get result in dataset and its show data too.but when go
into database my inserted data not showing there.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim con_str As String = "Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Database1.mdf;Integrated Security=True;User Instance=True"
Dim con As SqlConnection = New SqlConnection(con_str)
Dim cmd, cmd2 As SqlCommand
Dim adp As New SqlDataAdapter.....
How to display empty GridView to insert new record if no data retreived for some record on the result from data table?Actually i am trying to give a user an option to add recrod from Gridview. On result of some query it is perfectly displaying data and a footer row with the insertion textbox but when there is no data in the gridview it is not displaying. It should display with footer having insert textbox.
View 5 RepliesI use GridView & FormView to update a record. but when I click the "save" button, throw an except : FormView must be in the insert mode to insert a record. The record has been updated success, and I didn't change the mode of the FormView, how this error comes?
View 3 RepliesI am doing a data warehouse project.I have two tables tblA (id, type) and tblB(city, no_crimes, type).I want to create (insert) a number of rows based on the value of no_crimes.For Example, in tblB(Leeds, 2000, murder). SO, I need to insert 2000 rows into tblA by a single INSERT statement (not 2000 statements).
View 3 RepliesConseptually what I'm doing is simple, and technically it may even be simple, but I'm still rusty. Here's what I'm trying to do:
I have a webform that allows the user to enter a new record, and in there I have also included a couple FileUpload controls. Upon clicking the "Save" button, I'm saving the details entered into one table (ITEMS), and also inserting the FileUpload details (path, id, upload_user) into another table ATTACHMNTS). Because one ITEM can have many attachments, I needed to split the tables up. So on save, I need to save the ITEM, save the ATTACHMENT, and then also put the ITEM_ID in the ATTACHMENT table. I'm second guessing myself because I think all I'd have to do is after I do the ITEM insert, do a SELECT MAX on the ITEM table and hold the newest (MAX) id in a variable and then use it in the ATTACHMENTS update. I'm not 100% on this because there IS a chance that someone else could save a few milliseconds later and I'll link the wrong ITEM. See my delima?