Forms Data Controls :: Gridview Paging - Counting The Rows?
Jan 21, 2011i'm using paging in gridview(page size is 10).my problem is when i get the row count it says row count is 10. how can i solve it
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i'm using paging in gridview(page size is 10).my problem is when i get the row count it says row count is 10. how can i solve it
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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'm trying to use this code for counting and presenting total No. of rows returned for a grid view with AllowPaging="true" & PageSize="15".
getting the "object reference not set...." error for the "DataSet tbl" line:
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I want to create a gridview with checkboxes. (only vb.net)
1) persist checkbox rows in paging in vb.net not c#
2) add the checked rows to datatable datasource and show on next page in paging
I have one gridview and i am doing paging in gridview. Now i want to show total of all rows in gridviews last page footer. how can i do it?
View 1 RepliesI currently have a GridView control on my aspx page with paging enabled and I need to loop through the entire row collection/count to process the selected records. With my current code, it will only loop through the current page of GridView row.
foreach (GridViewRow data in grid.Rows)
{
//here is my code
}
I tried to keep all the data in the gridview when paging, but when I try to save it, which appears in my database only when it is active pages .. ex: in the first and second page I have data in gridview .. when I save, the stored in the database only the first or second page of course .. so I like to keep all my data in gridview when paging..
i have tried using : foreach (GridViewRow row in GridCustomColumn.Rows) but it's not working..
string sql1;
foreach (GridViewRow row in GridCustomColumn.Rows)
{
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In my gridview, I want to count the number of times each value (based of course on a field in my gridview) occurs. For example, if I have a field called Dept, in my result there is the following:
Dept A
Dept A
Dept A
Dept B
Dept B
Dept C
What I am trying to do is to show that for each Dept A, the count is 3, and for Dept B, the count is 2 and for Dept C the count is 1. When I have my count, I want to save them into my hidden field, which I am going to use else where in my code.
I know I need to do this in my rowdatabound event, and I have had ago, but the results I am getting back are not correct.
I am have created the link in the gridview datarow and have redirected the querystring to a new page, however how do I make the count of the new page based on the querystring? Essentially, I would like to count and display in a textbox the number of times a user has clicked on the selected row.
View 3 RepliesIs 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 Repliesi need to show 3 gridviews in a tab container (ajax).. which should refresh at same time.. what is the optimal way to get data from database for that can some one show a solution for this .
i need to design an application in asp.net using gridview custom control. the gridview will show hundreds of records using paging with checkboxes in every row. if the user checks 3 rows in first page of gridview which is showing 9 rows, those 3 rows should appear on top in the next gridview page and the page should display only 6 new records. ie 6+3=9 similarly if user checks 2 more rows, the next page should show 3+2 rows(from first 2 pages) on top and only 4 new rows ( 3+2+4=9)software developer
I just have a simple ASP Table seen here:
<asp:Table ID="tblCategories" runat="server" CssClass="oneColTable padded-table dataTable">
<asp:TableHeaderRow CssClass="tableHeader">
<asp:TableHeaderCell>Category Name</asp:TableHeaderCell>
<asp:TableHeaderCell Width="50">Delete</asp:TableHeaderCell>
</asp:TableHeaderRow>
</asp:Table>
And if the user wants to add an additional row I use the jQuery Clone method to copy and append a new row.
My issue comes when I want to count the rows present on the C# side it always lists 1 Row. The row for the header entry.
How can I correctly grab the accurate row count on the C# (Codebehind) side?
I came across a situation where a user selects no of rows from dropdown , depending upon the user input, automatically that no of editable rows should appear to input data...(maximum 8 rows only)
View 1 RepliesI 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'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.
I'm binding a gridview from a webservice with 30 columns and 10 rows, I need to print the same in a PORTRAIT, for that i decided to display columns as rows and
rows as columns like below:
EMP1 1 2 3 4
EMP2 1 2 3 4
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();
}
I have several repeaters on the same page. They are not nested. Because of design and database issues I had to keep them independent. I need to total the amount in a particular column for all repeaters. Is there a common approach to this or do I have to hack something?
View 1 RepliesI 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 Replies