I have the following datagrid
<asp:GridView ID="importedListGridView" runat="server" OnDataBinding="importedListGridView_DataBind"
Width="450" CssClass="GridAltItem" AutoGenerateColumns="False">
<RowStyle CssClass="GridItem"></RowStyle>
[code]...
I have a datasource (quite heavy to run) and a Gridview on the page.
By default when the page is loaded the datasource and Gridview bind and display. However since the datasource is heavy I want on page load these 2 will not bind.
I want them to bind only on a button click. How to stop the datasource and Gridview from binding on 1st page load ?
I have gridview control. visit [URL] but when i change page index of this i get error the following error
Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.
This is the problem. My datalist, which connects to an Objectdatasource (I implemented custom paging) becomes populated with data only half of the time. When I go to the aspx page which contains that datalist (from another page), sometimes, the datalist fully loads, but sometimes only the header shows up. The header just contains hard-coded text whereas the body (itemtemplate portion) contains things that are binded to the objectdatasource. I thought I would mention this since the problem might have something to do with how things in asp.net bind.
The strange part of this is that when I was testing and debugging within VWD 2010, the datalist loaded fully everytime and I had no issues. When I placed my files on the IIS web server, this is when the problems started happening.What could the problem be? The speed of the IIS web server vs VWD's "internal server"? My page_load, init_load, etc methods are empty for this aspx page. The datalist is solely handled by the objectdatasource_selecting method. Should I explicit call something from one of those early lifecycle methods to ensure proper datalist loading?
I have a simple UserControl that I've created that simply allows a user to enter the date. For the time being, it has a single Textbox with ID="tbDate". I am trying to dynamically add this control multiple times via (for example) `placeholder.Controls.Add(LoadControl())` but am receiving the error "An entry with the same key already exists". I could, perhaps, change the ID of the elements but then it would be difficult to grab the value entered by the user.
View 3 Replies now a days i'm working on my project. In project there is a aspx page which is binded with a masterpage, the problem is that when i run the project in debugging mode i found that page load event of a page is firing two times instead of one along with masterpage page's page load event. This is crreating a problem in filling a grid. I searched through the internet for this problem some says that it may happen if u have any image whose src="" or due to some bad HTML's on page .But i've gone through the page it does not contain any image whose src="" .
[code]....
Using Forms authentication, for some reason my login page is called 9 times. it causes some browsers to show "too many redirects!". Even with no javascript and nothing in the page_load event, it is called 9 times.
View 2 Replies am using a master page, with children pages.
I am using forms authentication, and a session object to hold user information once the user is authenticated.
I am able to login and log out. I am able to log in and use the "remember me" functionality of the forms authentication.
When attempting to test the "remember me" functionality, the master page load event contains code to check the forms authentication & remember me, and retrieve user info from the database to automatically log the user in. This fires correctly, and the screens all load with the user successfuly logged in, and the users info is successfully stored in a session object.
Without touching anything on the screen, a moment passes and then the master page load event spontaneously fires again, Page.User.Identity.Name still contains the user name, however the session variable is now null, and throws an error.If I tell it to run past this error, it does, and the application continues to function normally, withthe session variables set correctly.
Its almost as if that second firing is ina different session, or something.
I have no problem posting code, but I have a profile class holding / handling the session communication, etc so it is a bit cumbersome.
I am using gridview. In which i m entering some value in textbox in Gridview.According to that value, i m generating datatable and binding it to the Gridview(Child Gridview).But when i m doing this, the performance of the page is very slow. How do i improve the performance.
View 3 RepliesI have a data grid in which I have to display around 12,000 records. Even if I do paging it is difficult to display all the records. Is there any other control or something else so that I can display all these records. Even if I make these as alphabetical also, some times I have to load 1000 records in a page which is difficult.
View 2 RepliesI'm developing a custom webcontrol from GridView.
I've run into this bizarre situation wherein I get the below error if I set page size other than 5 in the page using this control.
"Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request."
This GridView is a hierarchial type. I add a new GridView below each row in the webcontrol overriding OnRowDataBound.
If I set pagesize as 5 the paging works properly.
I created a search page with a lot of different functions. The page takes about 6 seconds to load so I'd like to work on making it faster. I first want to see what functions are taking the most time. I originally tried adding Response.Write(Date.Now()) throughout the code but didn't yield accurate results. I'm guessing it that's because .NET doesn't compile things linearly?
View 2 RepliesI have the following sorting code that works find when clicking on a column header in a gridview.
Now, I'd like to fire this sorted table & fire it on load instead of having the user have to click a column heading.
how to do that?
Here's my code:
[Code]....
I want to insert a record in the gridview and i have designed it as the fig: below shows.
Initially there is no data in the datatable to which the gridview is bound to,so the gridview is not displayed when the page load,ok
I want to ask that is it possible to display Gridview on page load with only the header and the footer?
i.e;the user can see the header names and the textbox and drop down list at the foorter so that they can insert data in the grid?
i'm tring to clear the gridview in each page load, because each time my code insert a data the pervious data still shwoing in the page ,
i only want the inserted data to show not the whole data in the gridview
I have a GridView that I would like to load at a specific page that has an item with same ID as the QueryString parameter in the URL.
View 5 RepliesI have 2 gridviews. How to select automatically the first row of my gridview and based on that selection i have to display the first row values of second gridview in pageload
View 9 Repliesi have two tables in my database, product(productid as pk) and productdetails(productid as fk), in a relationship.i have dropdownlist which on pageload displays data from my product table, showing all product name. AutoPostBack enabled. Its working fine.i have a gridview which should display the productdetails data when i select a value from my dropdown list.i have written the code for the gridview on the selected_index_change event of the drop down list, please correct me this is wrong;here is the code;
Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles
DropDownList1.SelectedIndexChanged
Dim ConString As String [code]...
so when i select the value in the dropdownlist i get this error .Must declare the scalar variable "@ProductID".
I am binding same data Table to Combo box and List Box on the WindowsForm Load.
When I select a value in Combo box automatically that value is also getting selected in List Box and same thing when I select a value in List Box that value is also getting selected in Combo Box.
Selection should be only for that particular control, how can I achieve this ?
I have 2 gridview on my page. I want that when the page loads the GridView should be visible with only the header. How can this be achieved.
View 4 RepliesI have records in a Gridview, when I click on the NAME of each item I want to open up and new page and display a more detailed view of the record, i.e. the extra details from the table. I have the following code setup:
<asp:GridView
ID="GridView1"
runat="server"
AutoGenerateColumns="False"
OnSelectedIndexChanged="GridView1_SelectedIndexChanged"
DataKeyNames="Code">
[Code]....
This setups the hyperlink and passes the key of the record in the URL, but how do I retrieve this key and use it on the new page ?
I have a 3 text boxes. When i enter datas in and click the button it displays the gridview with filtered data. Now my problem is if there is no data in gridview it has to show "no data" so I used emptydatatext property.. The problem is, in the page load itself it shows "no data"
View 3 Repliesi m working on application that works similar to our email i.e when user enter his emailid and password his inbox should be display and those unread should be in bold and i have a treeview forinbox,sent,deleted .when inbox is selected the inbox detail should be displayed using gridview by default like in email the inbox data shoul be display on pageload so i have written databind code for grid view in page load event
if(!Ispostback)
{
gridview databind code
[code...
I have a gridview in which I have the autopaging option set to true, when i load the grid everything works on the first page, i can even go to second page , but when i click the edit button nothing happens and after that any click blows up the page giving me error Faile to load view state.
View 5 RepliesIn my project i have a gridview, it is working nearly OK but problem is i have to click 2 times (not a double click) to edit it.
why ? i don't know.