ADO.NET :: Lock A Record That Is Being Edited Using VB.NET?
Jan 17, 2011Can I lock a record that is being edited, and restrict more than one user from editing the same record at the same time? using VB.NET or SQL Stored Procedure.
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Jul 5, 2010I have the scenario like this,
My environment is .Net2.0, VS 2008, Web Application
I need to lock a record when two members are trying to access at the same time.
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[code]....
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[Code]....
Know When The Page Is Last Edited?
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[Code]....
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<asp:GridView ID="outputGridView" runat="server" onrowediting="OutputGridView_RowEditing">
<asp:TemplateField ItemStyle-HorizontalAlign="Left" ItemStyle-VerticalAlign="Middle"
ItemStyle-Width="250px" HeaderText="JobId" HeaderStyle-HorizontalAlign="Left"
HeaderStyle-BorderWidth="1px" HeaderStyle-BorderColor="#e1e1e1">
[Code]....
But in 'JobId' string its "", how can I get the text of the third cell from the row that is being edited?
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[Code]....
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In this grid is a lot rows, and when I change value in the row, for example from xyz to abc I still in position where this row WAS. Edited row jumps to top.
I want to abort this automatic sorting and I want call sorting by left click on column. Be
I found some solution (code below + I set SortMode to Programmatically), but my row still jumping :/ Has anyone solution to tackle with this issue?
private void dataGridView1_ColumnHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
DataGridViewColumn newColumn =
[Code]....
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Jul 21, 2012I am trying to change gridview color row permanently which are edited.. In My GV i have 4 columns like workid, name, dob, place.
When user Edits these items I m storing Edited workid with boolean value in separate table called editeditems.. i used below code to change color in row data bound.. but its changing color of all rows Gv
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) {
if (e.Row.RowType == DataControlRowType.DataRow) {
DataRowView row = (DataRowView)e.Row.DataItem;
if (Session["ordid"].ToString() != "") {
string ordid = Session["ordid"].ToString();
[Code] .....
Using 'Lock' In Web Applications?
Nov 30, 2010A few months ago I was interviewing for a job inside the company I am currently in, I dont have a strong web development background, but one of the questions he posed to me was how could you improve this block of code.I dont remember the code block perfectly but to sum it up it was a web hit counter, and he used lock on the hitcounter.
lock(HitCounter)
{
// Bla...
}
However after some discussion he said, lock is good but never use it in web applications!What is the basis behind his statement? Why shouldnt I use lock in web applications?
DataSource Controls :: Save A Edited Image Into Sql?
Jan 7, 2010I Have a image control ,a button and some label control in asp.Net with c#....
In image control i drag and drop some labels on that image ....
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Jun 25, 2010In VWD, we can customize-edit-command to your heart's content. But there is none for what I used to get in NetBeans or Eclipse: go to the last edited position (after 5 minutes of search for the correct spelling of some name in the page).I know there is Navigate Back, but I often need to do click [Navigate Back] 10 times to get to 'last edited line'.
It would be nice if I can navigate through the 'green bars' (Yes, it is very difficult to find out what are green bars, once you found out, you want to be able to visit each of these using next or prev).
Also where is the documentation or help ofr each of the some 50 edit commands such as 'go to Reference'.
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Oct 22, 2010I am binding the ReorderList in my code behind file. I am not using a DataSource Control like SQLDataSource etc. How will I capture the values edited, in my ReorderList1_UpdateCommand(). In GridView we can use something like
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[Code]....
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View 1 RepliesADO.NET :: How To Lock Down A Table From Being Updated
Jan 13, 2011Is their a wayin sql server 2005 to change some type of setting on a data table so that it can not be updated or inserted into?
My problem is that I have a data table that is somehow being populated by an application. I have looked through all of the stored procs, views, functions and the C# code itself. I can't find out where or how it is populating a certain data table. So I figure if I can somehow make the table non updateable, then I can find out where the insert/update is occuring.
This would all occur in a test environment of course.
C# - Looking For .NET Lock Thread Method?
Mar 30, 2010I'm developing an ASP.NET forms webapplication using C#. I have a method which creates a new Order for a customer. It looks similar to this;
private string CreateOrder(string userName) {
// Fetch current order
Order order = FetchOrder(userName);[code]....
The problem here is, it is possible that 1 customer in two requests (threads) could cause this method to be called twice while another thread is also inside this method. This can cause two orders to be created.
How can I properly lock this method, so it can only be executed by one thread at a time per customer?
I tried;
Mutex mutex = null;
private string CreateOrder(string userName) {
if (mutex == null) { [code]....
This works, but on some occasions it hangs on WaitOne and I don't know why. Is there an error, or should I use another method to lock?
Lock Application For Maintenance?
Feb 23, 2010What I'm looking to do is lock the application so the admin can do maintenance for however long. All i want to do is be able to click a button on a "maintenance" page and it makes it so anyone who attempts to use the system and anyone who is already in the system is redirected to a page, if they try to do anything, that says the site is down for maintenance.
on postback, on redirect, etc. No Access until that button is clicked again to unlock.
C#: Put Lock Block Around A Section?
Jan 12, 2010I intend to around existing code snippet (updating a Hashtable) with lock() block to prevent multiple threads (launched by ASP.NET web site) from simultaneously updating a Hashtable.
Bc this is first time I do in this measure, I need your advice on
Any performance overhead caution caused by lock() Any other issues you ever experienced similar to this scenarios.