Selecting Returning Values From Sql Database In Codebehind And C#
Nov 2, 2010
Is there a way of selecting returned values from a call to an sql database in the code behind? For example assume that I used the following to select values from a table called Products;
SELECT Price, Qty, Numbersold FROM Products
How can I now get the returned values e.g. Price in the c# codebehind and display it in a textbox? I know that in the asp markup that I can use EVAL and Bind statements to do this for example I can do Eval("Price") but is there a way of getting any of the selected values (Price, Qty or Numbersold) in the codebehind?
I know that I can use three separate select statements and make three separate calls to return each value and then do something like the following
I've used a sql data source to execute an insert stored procedure into my sql database. This time though, I want to execute the sp from my code behind. BUT, I'm stuck on the parameters and how to pass in the ones for the insert, and return one parameter, which is the identity of the row just inserted. The error I'm getting is. I'm missing something, but I don't see what... I think it's with the input/output parameters... Procedure or function 'sp_CloneIT' expects parameter '@ClonedMatterID', which was not supplied. My stored proc
I am new to sql so please bear with me here.I have two tables, COURSES and RESPONSES which have a common field userID. I am making a grid view which displays each users available courseName from the COURSES table and dateTaken from the RESPONSE table. So I simply wrote the query as:
SELECT c.*, r.* FROM COURSES c, RESPONSE r WHERE c.userID = @userID1 and r.userID = @userID1 and r.userResponse = NULL
I am developing an application with WCF services. The basic functionaloty of a screen is to provide an entry screen to add particular entity. Once save even fired It will save the data to the database and call the bind method to bind into the grid by refreshing the latest data.
When I am running the site from my source (Visual Studio) , it works perfectly. When the client calls method to fetch the data the WCF service, it returns latest (added) data. But the issue comes in the server when it works with IIS. I deployed the code in the server, once the data added I am getting the old data only. But after two refresh I am getting the latest data.
what required to be done to get the latest record.
I have jquery using ajax/json to grab an elements ID and then hits:
[System.Web.Services.WebMethod] public static string EditPage(string nodeID) { DataTable dt = new DataTable(); using (SqlConnection con = new SqlConnection(Global.conString)) using (SqlCommand cmd = new SqlCommand("contentPageGetDetail", con)) { cmd.Parameters.Add("@ID", SqlDbType.UniqueIdentifier).Value = Global.SafeSqlLiteral(nodeID, 1); cmd.CommandType = CommandType.StoredProcedure; cmd.ExecuteNonQuery(); using (SqlDataAdapter da = new SqlDataAdapter(cmd)) { da.Fill(dt); } } if (dt.Count > 0) { string pageTitle = dt.Rows[0]["Title"].toString(); string contentID = dt.Rows[0]["ContentID"].toString(); return pageTitle, contentID, nodeID; } else { return "Failed"; } }
When it's time to return I want to grab all content returned from the stored procedure back to the jquery method in the success section and set a hiddenfield, dropdown value, and a title in a textfield. In the jQuery I tried using "pageTitle" but it came up undefined. What do I need to do jQuery side to grab whats being returned and populate fields in my Web Form before showing the form?
I'm trying to communicate with a Windows-hosted SOAP web service using PHP's SoapClient.The Web Service is intended to insert a new record for a member into a database.I can verify that my code using PHP's SOAPClient can successfully transfer the data via the Web Service to the database,but I am not getting the expected return value.
The Web Service description for what I should be getting as a return is described below.On successful execution of the Web Service code,I am getting nothing back despite calling LastResponse function and LastResponseHeaders.It seems no XML is getting returned at all.I am using other API calls within this Web Service and they all seem to work fine with the expected XML returned whenever I invoke a method.but for this one,which involves sending data,I'm not getting a return
I'm trying to create a table with Listview and one of the fields I'm using is supposed to show a hyperlink to a more detailed view of the data shown, how I want to do that is by using FindControl on the ID of that item and then changing the value into a hyperlink of the detailed view page with a querystring attached, the problem is that I have no idea how to re-insert that data back into the listview field, which looks something like this:
in my applicaion dropdown having country,state ,district values and one autocomplete textbox , if i select country in the dropdown only country names should be filtering in autocomplete textbox
when i click the dropdown list it is postbacking(since i made auto postback=true). on that time i am unable to get the selected value from dropdown list.
I'm trying to retreive values entered by users in the textboxes in the footer of the gridview and insert these values into another sql table.My code is as follows :-
protected void GridView2_RowCommand(object sender, GridViewCommandEventArgs e) { if(e.CommandName.Equals("addnew")) { TextBox t1 = (TextBox)GridView2.FooterRow.FindControl("tfrm"); string frm = t1.Text; TextBox t2 = (TextBox)GridView2.FooterRow.FindControl("tsub"); string sub = t2.Text; string cmd = "insert into suggestions values('" + frm + "','" + sub + "','c','c')"; con.Open(); SqlCommand com = new SqlCommand(cmd,con); int a = com.ExecuteNonQuery(); GridView2.DataBind(); con.Close(); } }
But the strings 'frm' and 'sub' returns null values.
I added some javascript to fill in a dropdown and it works wonderfully. However, when I try to access the value in codebehind to submit the data, the value shows as null. (string strValue = ddlName.SelectedValue;).
I have an application that uses multiple identical databases. When the user logs in they select the database that will be working with for that session. I am EF 4.0 for to access the database. What I can't figure out is how to dymaically pass the database name of the database from a session variable to the code in the EDMX file.
In my application, users fill out a form to submit a "Job Request" - once they submit the form it is stored as a new row in a table in the Sql database. Each "Job Request" that is submitted is given a "JobID" which is a number and also the primary key of the new row in the database (the number is generated by the database). Once the users hit the "submit" button, I'd like to return the value of the "JobID" (the primary key) so that the user can know what it is. How would I achieve this? In the future, I will have to expand the application so that the users would be able to edit an older "Job Request" and get a similar JobID number (so if before it was 1234, the new one would be 1234-1 or something like that), so this is not simply a matter of searching for the highest number in the primary key field in the table and returning that. I'm using Sql for my database and writing in VB.
So first Assert I'm making sure cars that aren't 4WD exist in the database otherwise it wouldn't be a valid test.
Second Assert I'm making sure at least one was returned.
Third Assert I'm making sure that all the cars returned were in fact 4WD.
I know this isn't a good test because I'm using the same logic in the test as the function I'm testing. However this is the only way I can currently think of to do this.
I want to select a row in gridview and add the data of the row into a DataBase Table.
I have 2 tables
Table A and Table B.
I am displaying Table A data using gridview.When the user clicks the select command button in the gridview then i need to add that row data into Table B.
I'm trying to select a random record from my database and display the details of the record on screen. The table I am using is the aspnet_Users table which as I'm sure you all know holds the details of users. After a bit of googling, I found the following code:-
[Code]....
I've built my page and I get no errors which is a great start I just can't seem to figure out how to then display the results of this query on the page. I just want to display the username for the record that is selected.
I am trying to create a search page, this allows the admin to search through the entries in the database by certain criteria, such as province (like state but diff country)
Here is the code I have so far. The problem is that I am not getting any errors. But I am also not getting any results. The page just posts back and returns to the blank search page. The GridView does not display any results.
here is my code as it stands:
Imports System.Data Imports System.Data.SqlClient Imports System.Web.Configuration Partial Class administration_Search Inherits System.Web.UI.Page Protected Sub ProvinceButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ProvinceButton.Click 'get the search string from text box Dim Search As String Search = ("%" & ProvinceButton.Text & "%") 'if the string has value then continue with search If Len(Trim(Search)) > 0 Then Dim con As String = WebConfigurationManager.ConnectionStrings("fubar").ToString() 'build sql string Dim s As String s = ("SELECT id, surname, name FROM orders WHERE province like @strSearch") 'declar connection Dim c As SqlConnection = New SqlConnection(con) 'add command Dim x As New SqlCommand(s, c) 'add parameter x.Parameters.AddWithValue("@strSearch", strSearch) c.Open() Dim r As SqlDataReader = x.ExecuteReader GV.DataSource = r GV.DataBind() c.Close() Else Province.Text = ("Please enter search terms") End If End Sub End Class
On the .aspx page I have a textbox (id: province) and a button (id:submit)
I have an entry from a database that has 500 characters. But when i display it i only want to return 200 charcters. How do I do that. I use Sql Server.
I have static html paypal buynow button that works great, but it's static.
[Code]....
But it is possible to change the values for the hidden inputs from .net codebehind code? I found this post which takes a different approach of sending these hidden fields instead as a query string to paypal. Not sure I like that though as would this not possiby explose some of those fields like the return page?
Basically what id like to do change the important parts of the button and info I'm sending to make it dynamic.I know I can do something like this in the markup, but that would mean having to fetch data mulitple times was hoping I could somehow adderss the field values directly in the codebehind. Or possibly dynaically generate and insert the entire changing input type fields from the codebehind
Possible to add them with something like this: myform.Attirbutes.Add (???). If so how do I contruct these input types in .net?As far as return logic security, I've tested that it's solid, i just need to automate the button process so I don't have to create a buy now page and button for each product.
