I have the following code, it currently works fine. I would like to know if it's possible not to mark as checked the last two rows?
Code:
For Each row As GridViewRow In GridView1.Rows ' Access the CheckBox
Dim cb As CheckBox = row.FindControl("CheckBox2")
cb.Checked = True
Next
Scenario:
I am creating a custom gridview control which has a custom CheckBoxTemplateField column (deriving from TemplateField class). This template field column has custom Checkboxheadertemplate (implementing ITemplate) and CheckboxItemTemplate (also implementing ITemplate). In InstantiateIn method of both templates (header as well as Item template), I am adding a checkbox control which has Autopostback = true.
My requirement is:
I want to mark all the values in the binding column of datasource if checkbox in headertemplate is checked. I dont want to mark only rows visible on grid. I WANT TO MARK ALL ROWS IN DATASOURCE. I want to do this in _CheckedChanged event of checkbox in header template.
Problem I am facing: When I check/uncheck the checkbox in header, it postbacks. so in OnCheckedChanged event, gridview's datasource is null. Secondly, in any event of gridview, I could access only those rows of datasource for which corresponding rows are visible in gridview through Gridviewrow.DataItem property. But I want to set it for all rows in datasource.
I am new here,I have a grid with some checked & unchecked check boxes,& on click button of asp.net i want to add the checked rows to database,so which method will be best ?
View 1 RepliesI have a gridview that has a checkbox (inside TemplateField). I would like to grab all the selected rows and reassign them to a new gridview. how I can go about doing this?
View 2 Repliesi 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)
I am trying to add the checked rows into the database by looping through but im getting this error:
Object reference not set to an instance of an object.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
Heres my add click event:
[Code]....
How to get The Rowindex Of Gridview by clicking button outside gridview in ASP.Net?
View 1 RepliesI am using 2 Form First Page is used to Get data from user a dropdownlist and a GridView with CheckBox. Second Page is used to Display the Data entered in the dropdownlist and gridview. values are displayed in a gridview. Each value has a Edit and Deleted command. if edit Button is Selected.. i must redirect to page 1 along with the details which i Selected must bedisplayed in the dropdownlist and the CheckBox selected Value should be checked.
View 1 RepliesI have created a popup window with the modalpopupextender. Inside the popup window is an Updatepanel that contains an OK button, a Search Button, a databound Datagrid and some checkboxes.
The problem is that when i press the OK button, i want to find the rows in the datagrid that have been checked with the checkboxes.... but i can't find the datagrid on the page! Any suggestions to how i can find the datagrid in the updatepanel?
I have check box field in grid view and I want to save checked row in sql server 2005.how i can save.
View 1 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 want to know how to select only one checkbox and all other will get disabled and when unchecked all will be enabled inside a gridview.
View 1 RepliesI want to transfer gridview record to another gridview. Actually I have placed a checkbox column in 1st gridview. Now what I want that when i select the checkbox of any row the related row transfer to 2nd gridview and when I deselect it that row it returns to its previous position in 1st gridview. All these things I want to do using Javascript.
View 1 RepliesI have a grid view with two columns A and B. Column A has Checkboxes and Column B has numeric values(int). When user checked checkboxes the checked checkboxes column B have to added and displayed in a Label.
View 1 RepliesI 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 am having gridview and i have check box for each row. There are 2 buttons ,accept and reject outside the gridview. If I click accept button, all the checked rows fields value should change to accept and if i click reject button all the checked rows column value should change to reject. There are 3 columns only one column will change.
View 1 RepliesI am transferring selected rows from 1st gridview to 2nd gridview and removing rows from second gridview when I deselect row from 1st gridview using Javascript and it is working fine. But when I am deselecting the same row 2nd time it is not removing from 2nd gridview. html and javascript
<head runat="server">
<title></title>
<script type="text/javascript" language="javascript">
function AddRow(lnk) {
var rw = lnk.parentNode.parentNode;
[code]...
in my project i have a gridview gv with 5 rows with check boxes(templatefield).. and 1 label.. my problem is when i check 1st row the row value display in label, if i select 1st row & 2nd row checked the two values display in same label with comma seperation, if i uncheck 2nd row, the row value remove from label and only 1st row will be display..if i select all rows all values are display in label with comma seperation.
View 1 RepliesHow To get Datalist Checkbox Select Item To The Another Datalist on click CheckBox
Code Like
<form id="form1" runat="server">
<div>
<h2 style="background-color: #CCC; font-size: 16px; font-family: Arial, Helvetica, sans-serif; font-weight: 400;" class="heading">Brand</h2>
<asp:DataList ID="DataList5" runat="server" Style="font-weight: 700; color: #CC33FF; background-color: #66FFCC;" Height="100px" Width="122px">
<ItemTemplate>
[code]....
I have a treeview in my .aspx: <asp:TreeView ID="tvDocCatAndType" runat="server" /> Not much else going on in the page -- two <asp:LinkButtons> and one <asp:Label>; the page is a child of a master page, so these controls are within a <asp:Content> control. I populate the treeview in code -- just 3 node levels, including the root node. All nodes have checkboxes, and I initialize all node.Checked to true. I have some Javascript to do the usual check/uncheck up and down the tree as parent and child node checkboxes are toggled.
No matter how many checkboxes I clear in the UI, on postback every single node has node.Checked = true regardless of the state of the checkbox in the UI. This is not the first time I've used a treeview, but I've never had this problem before. I created this page by light adaptation of an earlier project that works fine.
I have an html checkbox that controls a list of checkboxes. I want this checkbox to display in a sorta "null" state where it is neither true nor false.
<HeaderTemplate>
<div style="width:90px">
Toggle:
<input id="chkAll"
onclick="javascript:SelectAllCheckboxes(this);"
runat="server" type="checkbox" />
</div>
</HeaderTemplate>
I have a GridView that I was previously populating via an ObjectDataSource, and this code was working perfectly (ie, when the checkbox was checked Checkbox.Checked = true):
CODE BEHIND:
[Code]....
[Code]....
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
=========================================================================================
Dim checkbox As CheckBox = CType(row.FindControl("chkRDR1"), CheckBox)
In the code I have here, I need to set the checkbox state from a database but I dont know the properties:
[Code]....
I have approximately 5 pages on a website that need to have a special hyperlink show up in an area that is controlled by the master page. All other pages would not get the link. What is a good way to mark these pages so I can add some C# logic to insert the hyerlink when it is a marked page?
View 3 Replies