C# - Bind Data From Several Tables To Specific Control?
Feb 23, 2011
i will use advanced control like gridview or schedule , and the data that is supposed to be bound to this control is : data from set of tables in my database.not a single table.
what is the best form for this data?
what i thought about at first is:
stored procedure ,contains my logic (and i wanna to ask here about what is the best performance also)use temporary table or joins or ... etc.
what are the possible solutions and more performance rather than stored procedure( as this is a web application many users will use it).
Within a repeater control, is there a way of de-binding certain items before the page is rendered?
Currently we have a collection of items being bound to a repeater and if the item is not part of the current language, we hide the item.
I'm wanting to be able to do a count on the repeater and get a valid number back. A count that doesn't also include the hidden items.
Is it possible to de-bind specific items perhaps in the ItemDataBound event?
Update
For each item in the collection we're binding, we check the database during the ItemDataBound for further information about the item, such as language etc. This is currently stopping us from filtering the bound data before binding it.
There are 2 DropDown one is "Category" other is "sub_category"
I want to show data in "sub_category" DropDown according to "category" Dropdown selected value.
But when "Category=C1" data should bind in DropDown from Database Table1 and when "Category=C2" or "Category=C3" data should bind in DropDown from Database Table2.
how to bind selected values from two tables to gridview data source, that two tables are from two databases. i created a view by using these two.But error is getting with this query,that is invalid object derivdtbl_1.Expr1. how to fix this?
SELECT dbo.Station_Channel.St_id, dbo.Station_Channel.lid, dbo.Station_Channel.Edit, dbo.Station_Channel.lChannelName, dbo.Station_Channel.lShort, dbo.Station_Channel.lPosition, dbo.Station_Channel.lTransformData, dbo.Station_Channel.lUnits, dbo.Station_Channel.lDecimalPts, dbo.Station_Channel.parameter, dbo.Station_Channel.function_value, derivdtbl_1.Expr1 FROM dbo.Station_Channel CROSS JOIN (SELECT MAX(Fecha) AS Expr1 FROM MeteoStation.dbo.Datos) AS derivdtbl_1 WHERE (dbo.Station_Channel.Edit = 1)
i m trying to bind my both grid with two tables which are in dataset i m trying but when i m binding my gridview it's always binding the second table see code
[Code]....
i already tried to bind both the gv1 and gv2 they both are displaying same table i.e department
i am using ajaxtoolkit:combobox and i tried to bind data to this control in code behind file.but it is taking 3 to 4 mints to bind data and display the page. I am providing my aspx code and code behind code here
[Code]....
Code behind code: [Code]....
GetPrograms() method will return almost 6000 records. to load the control it is taking almost 4 minuts..
I built a website that tracks submissions online (SQL server express 08 edition). It has its own User table thats linked to other data tables specific to the business of the website. But I found out recently that I can save lot of time by integrating ASP.NET standard Login Controls that can automate lot of coding and make my life easier. Now since then, I added the login controls, integrated the work flow into my website (just user , role navigation so far) and noticed VS creates its own user tables , view, SPs etc. I am okay with that.I need all my submissions to be linked to a particular user that enters each sumission. Now since my user (userid) moved from my personal custom table to a standard ASPNETDB.mdf table... how do I link my original website database and tables to this Default User table / (ASPNETDB.mdf) created by VS.
I have 10 tables in MSSQL I want to select some info from this tables and show on a webpage (formview maybe(based on user selection)). Also, Id like user to be able to EDIT this info, and it should go back to database.
The problem is that: the realtionships are pretty comprehensive. In sql management studio I saw awesome view creation, where u can drag and drop tables and select just the field u need, and it automatically do all joins for you.
View would work perfect for me, but i need to update database back. Maybe I can use linq classes?
I mean, its easy, but it takes a lot of time to do it by hand programatically. Is there some dragandgrop-like feature in visual studio?
what is the easiest way to bind multiple tables in one place with crud operations available?
sql datasource supports only 1 table at a time.
I Found on the web that we can use stored procedure? Do I need two stored procedures? for select and update? how we are going to bind update procedure with textobxes where user is going to edit info? Do you have some samples?
I need to display a header and details. What's the recommended way to do this? 2 separate datasets/tables, or 1 dataset with 2 datatables in it? I can't get the second set of data to display.
i am unable to handle jquery accordian. I want to bind it to ta database. I wanted that the user shuld be able to enter the values in a text box through an admin panel which i shoud make for him and those values should be displayed in the accordion panel through the database but........... I am unable to connect and show daabse values in accordian.. don't know whether my connection is not ok or my technique is wrong can anyone help me in this regard??
Here is the code for making the connection..
protected void Page_Load(object sender, EventArgs e)// Create a connection to the "DatabaseAccordian" SQL database located on the // local computer. { SqlConnection myConnection = new SqlConnection("server=localhost;" +"database=DatabaseAccordian;Trusted_Connection=Yes");// Connect to the SQL database using a SQL SELECT query to get all // the data from the "AccordianEvent" table. SqlDataAdapter myCommand = new SqlDataAdapter("SELECT * " +" from AccordianEvent", myConnection);// Create and fill a DataSet. myCommand.Fill(ds); {DataSet ds = new DataSet();if (ds != null)// Bind MyDataList to the DataSet. MyDataList is the ID for // the DataList control in the HTML section of the page. MyDataList.DataSource = ds; MyDataList.DataBind(); } else Response.Write("<p>No customer selected</p>");}
this code is compiled code with no syntax error.
if there is any other thing needed to be done for making the connecion.
<div id="accordion"> <h3 style="color: Black"> <a href="#">News & Announcements</a></h3> <div> <p> 23rd March will be a holiday </p> </div> <h3 style="color: ThreeDDarkShadow;"> <a href="#">Events</a></h3> <div id="divEvents"> </div> </div>
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).
I have 2 pages page1 and page2, page1 has a button and page2 has a multiview with many viewswhat I need is:when I click on the button in page1 I want to go to a specific view in page2 ex: view3
i want to bind my gridview with a dataset with concept of caching (to minimize the database server trips). plz give me a best example to get and bind data to gridview (command line) . grid paging is also enabled so example code should be capable to rebind data at Gridview page change.
ex. i had create a custom control that consist of a TextBox and a Button. how do i tell the aspx to bind the data to the TextBox in custom control like in usual aspx
wanted to bind all the files of a directory named "ABC" to a data grid and show them in a .aspx file as downloadable contents. When the user clicks a certain file link, here, the download starts immediately.
I have requirement to bind ASP.Net DropDownList control in EditItemTemplate of GridView.
I preferred the tutorial:
[URL]...
i have followed same steps just but difference is i have a edit imagebutton with commandname="Edit".Also dropdown needs to be binded from different table(directory) and not the table through whicch grid is binded(details).
if (e.Row.RowType == DataControlRowType.DataRow && (e.Row.RowState & DataControlRowState.Edit) == DataControlRowState.Edit && GridView1.EditIndex == e.Row.RowIndex) { DropDownList DStatusEdit = (DropDownList)e.Row.FindControl("DStatusEdit"); string query = "select distinct status from directory"; SqlCommand cmd = new SqlCommand(query); DStatusEdit.DataSource = GetData(cmd);
[CODE]..
the page is running but when i click edit image button the dropdwn shows but no data in dropdown binded it is empty.
My gridview is inside update panel.
How can i achieve this?
Should dropdownlist in my case be binded inside rowcommand and how?