I have a Gridview that I am trying to add Paging to, however when the 2nd page is selected I get my EmptyDataText.n reviewing multiple sites and forums they have stated to send your Datatable to a Session - What am I missing here?
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i am building my objectdatasource dynmically when certain buttons are clicked on the page.. and with that the gridview is being displayed with the results of the objectdatasource that was built.
So my gridview code looks like this:
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How can i enable sorting and paging if the datasource is being built on button click event?
I have the following on my aspx page
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Then in my code behind i have the following set up in 4+ button events, since each button serves a different purpose.. Prior to this past week, i was only working with 2 gridviews on the page.. that were linked to this datasource.. so everything was fine.. but recently had to add a Datalist to display the results a certain way.. I got it all working, but now that more records are in the table the datalist is growing in length on the page and cant figure out how to modify the current code to enable paging without having to redesign the logic all together to get it enabled.
Based on what i have below and above, is there a solution i can implement to implement paging ONLY for the Datalist? Or if it cant be specific, if enabled, will it affect the gridview that is already configured to enable paging, which already works?
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know in asp.net 1.0 the grid display controls would pull all the data in, and then provide paging but the paging was done in memory.Are there any smarter controls that provide paging where they only pull the data relevent to current page being displayed?ie. select 10 rows for the current page, instead of doing a select of ALL the rows in the table.
View 1 RepliesI have a page that I am creating 5 separate GridViews on, depending on the button the user clicks, a different GridView will show up. On a few of the GridView's there is a need for paging, so in the CodeBehind I did the following
billingGridView.ID = "BillingGridView"
Is there a way to use the GridView paging and having the links not use JavaScript. So that when you click on the page number 5 (for example) that link is a hyperlink.
View 3 Repliesreading on the forums about assigning event handlers to controls that are dynamically created via code and am just not getting anywhere.In my particular case, I'm rolling through a directory of images and creating ImageButton controls on the fly and want to assign the OnCommand event to a single handler.Then, by using the CommandName (which is different for each control) I can figure out which ImageButton was clicked and act accordingly.
The snippet below (which can be found in many posts on this topic) is inside a foreach which loops through the directory and gets each FileInfo (fi).Each is then added to a PlaceHolder (phImages).
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This code compiles and runs but the event handler is never invoked when an ImageButton is clicked. I believe this is because you cannot, without some coding I'm not familiar enough to do yet, assign a handler to multiple controls.I say this because I ran into a similar problem in a Silverlight app I wrote and had to use a lambda (=>) operator to do something similar (although I admit to not knowing enough about this to know if this situation is the same).
Im pretty new to ASP.net but am getting there slowly but surely! Its definitely growing on me.
The problem im looking at at the moment is i have a gridview displaying data from my SQL database, which works fine. I have enabled the selection option on the gridview which has placed a select link next to each row. Perfect.
What I am looking to do is be able to click the select button, and have the details from each column on that row go into variables when the page is posted back. I will then write these back to a different table in the database later on.
I see that when i click the link it is posting back the number of the row i have selected, but how do i use this to get the data from each column out of the gridview?
i am trying to create a paging facility for my dalatist dynamically and for this i am taking a hyperlink and putting it in a panel and showing the list of pages
but the problem is that when i click on next page for example from 1st page to another then it refreshes the page and opens the page with IsPostback = False and thus my all values that i have stored in a session becomes null like fisrt time loading
so it there any way so that when i click on the link it just show me the next bunch of record without refreshing the page ??
Note: i have created paging in my Stored procedure where each page contains 10 record per page
the code that i am using to bind the pager is as below : where default value of _PageIdx=1 and _totalPages = the number of pages that are coming from the database, it vary from search to another search
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I would prefer that all middle tier methods that are used by GridViews be in the form that allows them to be used by ObjectDataSources...
<DataObjectMethod(DataObjectMethodType.Delete)> _
However, I am working on a project that I did not create. So, I was wondering if there is a way to use all the cool built-in editing functionality of a GridView without setting a DataSource? In other words, I am binding the datasource in the code behind (this works), and I have the following in my GridView...
<asp:CommandField ShowEditButton="True"></asp:CommandField>
And in the RowUpdating event (after the update button is clicked), I would like to call a stored proc to update a table and then use this kludge to get the GridView out of "edit" mode...
e.Cancel = True
grdWeeklyTime.EditIndex = -1
grdWeeklyTime.DataBind()
Is this possible or do I absolutely need to specify a DataSource in the GridView dropdown in design mode and then check the Enable Editing checkbox?
I have a parent gridview5 with child gridview 6, today i deployed it to our dev server and on that server we have alot more records, so for the nested gridviews i need to enable paging on the parent gridview5. Doing so works fine, until i make a selection within the child gridview6, once any selection is made, and i try to page the page throws an error, i have the following bound to the parent gridview5.
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I want to implemet mail merge with my on going project, I know well how send news letters to authorized clients, but need to do it with mail merge like the email from this forum.
View 1 RepliesI'm trying to extend the GridView control to enable sorting and paging for any situation.
When using my control I am fetching data from a database and filling a DataSet with it, then binding the GridView upon every page load. My first question would be, is this the correct approach?
To sort the GridView I am overriding the OnSorting method which stores the sort expression and direction in the ViewState, then creates a DataView and utalises the Sort method to sort the underlying data. It then sets the Data Source to this DataView and rebinds the GridView.
Paging is handled by OnPageIndexChanging which simply sets the PageIndex property and again rebinds the GridView.
My problem is; when any control causes a postback my GridView is no longer sorted, presumably because it is persistently rebound. If I don't rebind it then the GridView is empty on postback since the data isn't automatically stored in the ViewState. I have considered saving the data source in the ViewState but I would assume that this is bad practice for large amounts of data? - also DataViews are not seralisable.
The only solution I can think of currently is to override OnDataBound and sort the data every time. This results in a double sort when paging triggers a postback which seems inefficient. Code illustration of this below,
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I'm looking for the cleanest 'best practice' solution as this is a learning exercise more than anything else.
GridView: Applying style to certain columns. I add GridView1_RowDataBound() and have the following line:At that time, my GridView did not need to use Paging. Now after I add Paging to my GridView (AllowPaging="true" and I have AutoGenerateColumns="false"), there is an exception for my
GridView1_RowDataBound() as:
ArgumentOutOfRangeException was unhandled by user code
Specified argument was out of range of valid values.
Parameter name:in
How to add Paging to my GridView while I need to have word-break to some of my text columns....
how to use pageing in gridview.
i have a grid there we set pageing =ture but when i click index 2 nothing diaplay my code is
protected
{
void ImageButton1_Click(object sender,
ImageClickEventArgs e)string date =
"select srl_no,pmw_timestamp from t_tube_auto_inter where to_char(to_date( PMW_MALFUNCTION_START_DATE,'dd-mm-yyyy'),'yyyymmdd') between to_char(to_date( '" + TextBox1.Text.ToString()
+ "','dd-mm-yyyy'),'yyyymmdd') and to_char(to_date( '" + TextBox2.Text.ToString() +
"','dd-mm-yyyy'),'yyyymmdd')";//ORDER BY PMW_MALFUNCTION_START_DATE " + TextBox1.Text.ToString();
//between '" + TextBox1.Text.ToString() + "' and '" + TextBox2.Text.ToString() + "'";
dt =
{
GridView1.DataSource = dt;
GridView1.DataBind();
}
}
{
GridView1.PageIndex = e.NewPageIndex;
DataTable dt =
new
DataTable();DataAccessLayer.FillData(date, contest);if(dt.Rows.Count>0)protected
void GridView1_PageIndexChanging(object sender,
GridViewPageEventArgs e)//GridView1.DataBind();
}
In my one asp.net web page by VS 2008 I dynamically creates a set of RadioButtonList and TextBox by objects
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The current issue is I can load the web page with a set of RadioButtonLists and TextBoxs but can't find the these dynamically built controls by Me.FindControl("rdoTask" & ID) in aspx.vb file to save info assigned to these controls.
I have a GridView with edit/delete column, label column and DropDownList column. I have a textbox outside the GridView and I want to choose only those rows from the GridView which have for the second column the same value as the value of the textbox while paging.
I wrote code, but I got 0 rows as a result, which is not true.
I have a Gridview all setup and even though I have the paging working it takes select the page twice in order to switch the page. Basically my code is as follows:
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i have problem with gridview, gridview paging not working.. i feel so confused about it. coz i think i already using the right code.
this is my code :
detail.aspx
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I have 3 gridview in my homepage..each one dealing with many rows.
I'm allowing paging in all 3 but its now working
Here's one of the codes:
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Background of what I have implmented so far:
I've used datagrid view to show a list on records on page, the list contains huge number of records so paging was required. Since the amount of data was huge it was not advisable to bind the grid with complete data. So, I used custom paging and tweaked the sql statements to get page wise data. Now whenever user clicks next or previous data for current page is fetched from the database and gridview is binded with that much data only.
Now I had to add a checkbox column to the grid so that user can select multiple items on multiple pages and perform an operation (for example send email to selected people in the list). I achieved this by making a template column with checkbox control and keeping a boolean column in the datatable which is binded to the gridview. I've also kept a collection selected checboxes so that the state is maintained on every postback.
I've also used ajax so that user cannot see postback happeneing. Everything works just perfect.Here comes the problem:
Now say I have 5 pages of data to be displayed. I select 3 people from first page and move to next page, this will cause fresh databinding and previous data will be lost.Now I go on and select 3 more people from page 2Finally press the send mail button What is expected here is that the mail should be sent to 6 people but details of only 3 people are available because grid is rebinded.
What is the best way to cach data of selected rows in this case. The number of columns is around 20 out of which I show only 10 columns on screen and others are kept hidden. The values of hidden columns are used while sending the emails.
We have a page the we have to write where users are shown 'pages' of data from our database they then select the row they want and we take them into another part of the application where they can work with the data.
When we use the built in paging (in the gridview) it is just too slow, as there is too much data.
We have written paging into our stored procedure that gets the data to work around this. The stored procedure works just fine and it is quite fast.
How can I get 'paging' buttons into my gridview when I am not using the built in gridview paging?I can keep it simple if I have to (next and previous only) but it would be better to have a 'first', 'previous', 'next', 'last' type buttons.
I cannot seem to figure out how to get these buttons into the gridview however.
some sample code (preferably vb) that would show this? (or something similar)
Built in paging is not an option.
As a part of requirement, I need to bind a table data to the Gridview, but the data content in the table is too large. I need not want to bring in all the data into the dataset, rather I need to bring only the rows that are needed to be displayed(Eg, if the page size is 10, i need only 10 records to be filled in dataset
View 5 Repliesi am create GridView in WebUserControl and and set the AllowPaging="True"din my page is running but the number of page GridView when chose nuber page 1 or 2 or 3the link java
javascript:__doPostBack('ctl00$MainContent$view2$GridView1','Page$5')
why 'ctl00$MainContent$
I
think
the correct sentences
javascript:__doPostBack('GridView1','Page$5')
Server Error in '/' Application.
The GridView 'GridView1' fired event PageIndexChanging which wasn't handled.Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.Exception Details:System.Web.HttpException: The GridView 'GridView1' fired event PageIndexChanging which wasn't handled.Source Error:
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Stack Trace:
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am using vs 2005 and sqlserver 2005.in my database table (name : users) there are more than 10 lac records.i have to display the user details in a grid.if i wrote the sql query as " select * from users" then it is throwing the "System.OutOfMemoryException"So i wrote the query using rownumber (i mean first it will get inly specified no of records ex:25 )so it is displaying only that 25 recordshow to give paging in this situation...?y requirement is in the grid i want to get and display first 25 records with the paging asirst Previous 1 2 3 4 5 6 7 8 9 10 Next Last
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