Forms Data Controls :: See If CheckBox In Populated GridView Is Checked And Compare To SQLDataReader?
May 13, 2010
I'm a little new in ASP.NET, so i don't know how the .NET machine fully works..I'm using two strategies to solve my problem, both invoked by a Button.Click event, but i don't know which one is better..My worries are about the server overload and page load time.This is the regular approuch i've used..
[Code]....
The second one is by using a funtion (named checkIfNumberExistsInDataTable) that does a binary search in a datatable to find a number
conn.Open()
Dim dr As SqlDataReader = cmd.ExecuteReader
Dim da As New DataTable()
[code]...
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Similar Messages:
May 3, 2010
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:
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Mar 11, 2011
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
=========================================================================================
Dim checkbox As CheckBox = CType(row.FindControl("chkRDR1"), CheckBox)
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May 7, 2015
when i checked the checkbox in parent gridview, all checkbox in child gridview will be checked.
how can i select the checkbox of child gridview checkbox in the when i select the checkbox from the parent gridview?
code behind
protected void OnCheckedChanged(object sender, EventArgs e)
{
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Mar 17, 2011
I need to make sure only one checkbox gets checked in a GridView. I have tried a solution on here, but I get an error. The other is looping through the checkboxes in the gridview to get the value, in this case, a date.
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And here is my code behind:
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Jan 13, 2010
I a using Gridview bind to a dataset. For this example, I am only setting up two columns.
1. Edit button
2. A template field that will display "No" and in Edit mode will show a checkbox.
When I run this code... the page is displayed... I click on the edit button... the row changes to edit mode and I CLICK the checkbox (can see a it checked).Then click on "Update" Button... which takes me to GridView1_RowUpdating event. If I check the status of the "box"... it's checked status is ALWAYS false Why?
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="Member_Id"
onrowupdating="GridView1_RowUpdating"
onrowediting="GridView1_RowEditing">
<Columns>
<asp:CommandField ShowEditButton="True" />
<asp:TemplateField HeaderText="IsPaid" SortExpression="status">
<EditItemTemplate>
<asp:CheckBox ID="chkIsPaid" runat="server" />
</EditItemTemplate>
<ItemTemplate>
<asp:Label id="Label1" Runat="server" Text='No'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
CodeBehind:
public partial class Default3 : System.Web.UI.Page
{
private DataSet dsEmpList = new DataSet();
protected void Page_Load(object sender, EventArgs e)
{
BindGridView();
}
protected void BindGridView()
{
dsEmpList = GetEmpList();
GridView1.DataSource = dsEmpList;
GridView1.DataBind();
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
CheckBox box = (CheckBox)GridView1.Rows[e.RowIndex].FindControl("chkIsPaid");
if ((box != null) && box.Checked)
{
//do whatever
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex; // turn to edit mode
BindGridView(); // Rebind GridView to show the data in edit mode
}
}
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Nov 1, 2010
I want to count all checked checkboxes in gridview. How can I possiblty do that? I've tried several ways but didnt work. This is my code for checkboxes.
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Jun 11, 2010
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Jan 18, 2011
I have problems with GridView control which has template field with checkbox in it. My primary concern is that same code works for all the other GridView controls I have in different webforms, but not in this one.
This code is supposed to get the identities (ID column in GridView) and then get the values of first two selected and finally redirect them to another webform as querystrings. I double checked the GridView and they are identical (except they are binded to different datasource).
Here is the code that doesn't work:
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Here is the one that works:
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Jan 28, 2010
I am trying to pull data from database and populate a gridview. I did it like this:
<asp:CheckBox ID="chkItem" runat="server" Enabled="false" Checked='<%# (DataBinder.Eval(Container.DataItem,"Em").ToString()=="True"?true:false) %>' TabIndex="1" />
I need to have an update on the gridview, so instead if using Eval, I need to use Bind. translate the line above to a bind function?
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Apr 23, 2010
I have a gridview control in which there is a column with checkbox. I will have to delete the rows of the grid selected by the checkbox. After the delete operation i am re-binding my grid we new datasource to populate latest data. The data is comig up correctly and the no of rows in the grid are also correct.
But the problem is that, if i select row 1 to delete and click on delete button, row 1 is deleted, grid is refreshed with new list, but row 2 checkbox is getting automatically checked. I don't know how this is happening. I have tried of writing code to uncheck all checkboxes after i rebind the grid. None of them are working. When i debug and see the items are actually showing as checked=false, but on the screen the check box is checked.
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Sep 7, 2010
I have a GridView with a Template Field set to Checkbox. Issue is; when I click the asp:button I placed beneath the GridView to update the database, I do not get a checked value on the returned button. So it just skips my code and nothing happens.
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Then I have my Method.
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So when the code gets to this line if (cb != null && cb.Checked == true), the value is always False even for the checked box.
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Mar 9, 2011
i got checkbox in gridview which put inside the itemtemplate. the problem is when i tick on the checkbox, the value for checked property still is a false value. Wat;s wrong?
aspx :
<asp:GridView
ID="GridViewRDR1_Hidden"
runat="server"
AutoGenerateColumns="false">
<Columns
>
<asp:TemplateField
>
<ItemTemplate><asp:CheckBox
ID="chkStatus"
runat="server"/></ItemTemplate></asp:TemplateField
>
</Columns
>
</asp:GridView
>
aspx.vb
If
GridViewRDR1_Hidden.Rows.Count > 0
Then
For
Each
row As
GridViewRow
In
GridViewRDR1_Hidden.Rows
Dim
cb As
CheckBox
= CType(row.FindControl("chkstatus"),
CheckBox
)
If
cb.Checked
Then
MsgBox("True")
End
If
Next
End
If
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Mar 29, 2011
<asp:GridView ID="GridViewRDR1_Hidden" runat="server" >
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1Hidden" runat="server" AutoPostBack="true" onclick="javascript: calculateTotal();" />
</ItemTemplate>
</asp:TemplateField>
how do i write a javascript fucntion to check whether the checkbox was checked or not?
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Apr 30, 2010
i have code to update multiple rows in a gridview. What I want is that if the row value is = 1 in the database then the row is checked otherwise it's not. I've put some pseudo code in below to illustrate what I want to achieve.
[code].....
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Jun 11, 2010
I'm trying to remove a GridView Row if the user has checked a checkbox in that
[Code]....
row (the checkbox is in a template field), but I'm unable to actually remove that row from the GridView. Here's what I have, I think I'm getting the row index incorrectly...
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Mar 29, 2010
I got a list of customers That I'm gone show in the gridview. I have added a checkbox infront of every customer so i can select what customers gone be used and passed to the next method. With a little bit of strugle I almost got everything working now except for this thing with keeping the values of checked customers when I page to the next page (2,3,4,5 ect).
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Jan 9, 2010
I have created a gridview and added a headertemplate field inside templatefield. Inside header template field I have added a button and a condirmbutton extender. confirmbutton extender uses modelpopup with ok cancel. This works fine but with one problem. I want this popup to open on button click only if user has checked atleast one checkbox from gridview. So far it shows this modelpopup everytime even user hasn't checked anything.
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Feb 7, 2014
How to count number of checkboxes are checked in each row of gridview in asp.net using C# code..??
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Jul 25, 2013
i am getting the values of name and comments from the user...
after saved these value into database i need to display those values in gridview in row order such as
Name;
comments; here checkbox
delete_button
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Mar 6, 2014
i want to disable other checkbox if one is selected inside gridview . i want to make that on clientside using javascript or jquery.below is the code
<html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server">
<title>Untitled Page</title>
<script src="selectedradio.js" type="text/javascript"></script>
<script type="text/javascript"> $().ready(function(){
$("#CheckBox1").click(function(){
$('input[type=checkbox]').each(function () {
[code]....
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Jun 16, 2015
I am new in Asp.Net Web development..........
I want to highlight the row when checkbox is checked in gridview with paging using javascript only. Without paging I am able to perform but with paging I am not able to solve this issue.
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Oct 26, 2013
I am using Checkbox in Gridview item template once it checked it cant be unchecked..once i click the button the checked box should automatically unchecked.
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Jul 23, 2010
the problem is actually in the subject. I have custom control that uses treeview. The control is added dynamically. Nodes for this treeview are populated on demand. Treeview nodes can be checked. I recreate this control on page load event, but still CheckedNodes is empty if checked nodes were added dynamically (added on demand).
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Oct 21, 2015
Click the chechbox event then in gridview data upload in form textbox upload.How can I do. My code is below.
protected void chkcsec_CheckedChanged1(object sender, EventArgs e)
{
string deleting;
string deleting1;
string deleting2;
string deleting3;
string deleting4;
foreach (GridViewRow row in GridView1.Rows)
[Code]...
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