C# - Validating Check Boxes In Gridview?
Jun 17, 2010I have used check box in gridview . Now i want to validate those checkboxes as if no check box is selected a message should pop up saying select check box and thn press submit.
View 2 RepliesI have used check box in gridview . Now i want to validate those checkboxes as if no check box is selected a message should pop up saying select check box and thn press submit.
View 2 Replies finding all check boxes in asp.net grid view is checked or not.
Depending on this I have to grayed out a button...
I have to enable the button depending on all check boxes are checked..
how to do this and on which event i have to place my code.
I have grid view containing check box column as one column,a drp down and button outside the grid..
for example drop down has two options like first and second,if i select first i want to change the name of the button to first and if i select second button name should be second,,and also i want to disable the checkboxes in gridview when button name is second..
when we select a check boxes creat dynamic check boxes. I have a main catagory check box when we select this main catagory check box creat subcatagory check boxes related to main catagory dynamically.
View 1 RepliesThere are 10 check boxes in one page. How to code to allow user only check one?
View 1 RepliesI have a report and some of the Boolean fields (both in form- and gridviews) should be displayed as check boxes (what else). Then my client calls me and says "Hey I can change the checkboxes before I print the report, what is up with that?" What is up with that, indeed? . So I check this out and everywhere I go I read the same thing, you can "disable" your checkbox, graying it out (which nobody, including me, wants) or you can create workarounds to stop the behavior and I found plenty of workarounds. The posts I have read were, I'll admit, pretty old so my question is this: "Am I missing something or do I still have to write a workaround for something so fundamentally basic that it should not even be a consideration, let alone an issue. I mean if you stick a check box in a read-only element (form- or gridview itemTemplate) it should not be editable by default, right?
View 16 RepliesI'm experimenting with validating forms in the asp.net MVC framework. I'm focusing on server side validation for the time being. I've come across an error that I'm not sure how to rectify. System.NullReferenceException: Object reference not set to an instance of an object. The code that throws the error is:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create([Bind(Exclude="ID")] MembersCreate mc )
{
mc.Modules = ModuleListDataContext.GetModuleList();
ViewData.Model = mc;
//Validation using ModelState
//
//
//line below errors when form field is empty
//
if ((string)mc.Member.Username.Trim() == "")
ModelState.AddModelError("Member.Username", "Username is required.");
if (!ModelState.IsValid)
return View();
try
{
// TODO: Add insert logic here
return RedirectToAction("Index","Home");
}
catch
{
return View();
}
}
When I put spaces in the field it performs exactly as i want, but if I leave the field blank and press submit I get the error. What's the best way to avoid this error and still validate blank form fields?
I am learning CSS in asp.net. I do not know how to make align for check boxes and labels. For example, below are six check boxes and six labels. How to make layout like below using CSS?
box1 label1 box2 label2 box3 label3
box4 label4 box5 label5 box6 label6
----
<asp:CheckBox ID="ckb01" runat="server" />
<asp:Label ID="lbl01" runat="server"></asp:Label>
<asp:CheckBox ID="ckb02" runat="server" />
<asp:Label ID="lbl02" runat="server"></asp:Label>
<asp:CheckBox ID="ckb03" runat="server" />
<asp:Label ID="lbl03" runat="server" ></asp:Label>
<br />
<asp:CheckBox ID="ckb04" runat="server" />
<asp:Label ID="lbl04" runat="server"></asp:Label>
<asp:CheckBox ID="ckb05" runat="server" />
<asp:Label ID="lbl05" runat="server"></asp:Label>
<asp:CheckBox ID="ckb06" runat="server" />
<asp:Label ID="lbl06" runat="server"></asp:Label>
I want to show the checkboxes dnamically.
I could show this but i want to retrieve the selected values of the check boxes.
I generate my check boxes dynamically:
for (int i = 0; i < dtCommon.Count; i++)
{
CheckBox newBox = new CheckBox();
newBox.Text = dtCommon[i].userName; [code]...
And when the save button is pressed I call this function:
protected void SaveUsers(object sender, EventArgs e)
{
}
How do I know which check boxes the user has checked?!
I've got an MVC 1.0 View that is more-or-less an attempt at reproducing WSAT.
On the Security->Manage Users page there's a column of checkboxes for "Active" for each user. Also when clicking the 'Edit roles' link a set of roles shows up in the Roles column of the table.
I'm using the standard SQL based Membership and Role providers that come out of the ASP.NET box.
For some reason, when I run the app from VS2008 all is well and I can update the Active and Roles values. However, when I deploy to a remote server, either my test server or in production, the checkboxes don't update the databse. Note that the links for 'Edit user', 'Delete user' work fine. I can create a new user or delete a user with no problems in any of the deployed locations. Also the 'Edit roles' link also works fine in that it brings up the list of all possible roles and shows which roles the user is in. The problem is specifically with the Checkboxes.
Interesting to note is that the JavaScript alert() (see below) does fire when clicking on any of the Role checkboxes. However, although the box is checked, the database is not updated on the any but VS2008 Casini. The database connection string is not changed on any of the execution sites which are running SQL 2008. IIS 7 on one deployed server (an ISP) and 7.5 on the other my in-house test server.
Here's the code I'm using to create the Roles portion of the page:
[Code]....
select multiple check boxes at a same time using c#? send me the codings.....
View 3 RepliesI have successfully added controls to pop up, like many check boxes ... now on check box checked event I want to show another check boxes on same popup.
View 3 RepliesI need to be able to select multiple options on a web form, but those options are hierarchical. For example:
Option 1
Option 1 a
Option 1 b
Option 2
The user should be able to select Option 1, or Option 1a, etc. Selecting Option 1 a should automatically select Option 1.
Inside of Repeater control i had taken Checkbox and i m bing the data to check boxes
[Code]....
|_| Groups
|_| Groups
|_| Groups
|_| Groups
|_| Group1
|_| Group1
|_| Group1
|_| Group1
But i need like this
|_| Groups |_| Groups |_| Groups |_| Groups |_| Groups
|_| Group1 |_| Group1 |_| Group1 |_| Group1 |_| Group1
based on same values i need to group the values like above O/P what i shown you.
I registration page with company information. A second page is a referral page. On the referral page I have 8 text boxes and 2 table control. 1st table control named project table control. 2nd table control named Contractor table control. Contractor table control fields are: Sub Contractor, Sub Contact Name Sub Address, Sub City, Sub State, Sub Zip, Sub Phone, Sub Email I have create the code to query through the registration table so user search for the company they would like to refer. I have also written code to to loop through checked boxes of selected companies. Which when place a break in VS 2008 I can see each company. Then I need to make sure when user save it save all data on the page. The problem I am having is when i click on the go to referral page from the registrations page it not passing the selected check boxes to the Contractor table control
View 1 Replieswell i am new to Grid View , so i am taking a simple scenario. well i have a visual webpartin sharepoint ; i have added a grid view with first column is of CheckBox Type & it has a Button & aLabel
i populate the grid view from an array of cities & i want that when button is clicked all the checked cities are appended in to the label.
code is below.
[code]....
while working i found that when button is clicked the page_load function build the grid view again & there fore all check boxes are initialised .
complete my code !!!!!
i do not want to do the same by using Javascript. i want to do this by C# only
& if possible tell me the way how can i put a checkbox near "Show" button that is used to check all the check boxes.
I have to select checkboxes besed on group column values. If you see below gridview, column 3 (GroupNo) has 1,1,1,1,2,2,2,2....etc (this column data is not static, will change based on page index. i.e PageIndex =2 may starts with 7,7,7,8,8,8,8,8,9,9,9 etc).
In every sectio/Group User must and should select minimun 2 check boxes. so If user select only one check box we need to show a pop up message as " select One more check box in that particular section" If User skips the message and move to next section we have to show the same message. We have to force the user to select more than one checkbox in the same section.
Mainly our intention is the check boxes whatever user selected in each section/Group belongs to one Category.
This is my repeater in GUI and code behind ..I need to replace the 'Make Default' linkbutton with a Check Box now. What I want to do is that When user Checks the checbox, the Default value is set to TRUE in DB , Also when a check box is Checked, it will be grayed out..
NOW I was just trying to implement this but there's no CommandName attribute for checkbox and not even CommandArgument attribute!!
How do I change my code now ?
All I wanna do is replace that Link Button with Checkbox. Somebody his..How do i pass arguments to this check box ..I need the command arguments for my "SetDefault" method that sets the address to TRUE if Default is selected
[EDIT]
I am not getting it..in my Link Button now I am passing 2 command arguments like this CommandArgument='<%# Eval("UserID") + "," + Eval("IsB") %>' Now how do i pass these two Comand arguments that I need for my SetDEfault method in checkebox!? ok i got it that we use OnCheckChanged event when its check box and ItemCommand event is used when its link button...I am just not getting how will I pass these two command arguments in my checkbox
[EDIT]
Do I need to pass these two command arguments via text attribute ?
<asp:CheckBox Text='<%# Eval("UserID") + "," + Eval("IsB") %>' runat="Server"/>
I have a grid view control with Template Field containing Item Template as Checkbox control and the Header Template is containing the label with column header name.
I want to click the coulmn header label and all the check boxes must be checked once.
provide me some examples or ideas how i can achieve this
[code]....
I have a custom validator which validates three text boxes. my code is,
[Code]....
I fill in all the three textboxes.it still gives me the error message to fill in all the boxes and does not submit the page even when all the three boxes are filled.
I have created a gridview with dropdownlist in asp.net(c#).i want to validate dropdownlist using jvascript.if i dont select anything from dropdownlist that time script shud display a message.i don know how to get the name or id of that dropdownlist
View 1 Repliesi have a UP and DOWN buttons ouside a gridview and a checkbox inside the templated field .I will check the checkbox to sleect a row , after that if i click on UP button the checkbox above the selected checkbox should be selected.
same with when i click on DOWN button the checkbox below the selected checkbox should be selected.
I have a grid view with two columns...one column has a no. like (123) and a check box....which user can checked or unchecked......all I need to do is that I need to disable the man handling of that check box......rather I would like to see a seperate grid view with the same no. of rows as of the first and in this gridview I may allow to type in or scan the no. and if this scanned or typed number matches any no. in the first gridview number then the corresponding check box should be checked/unchecked.
View 1 RepliesIs it possible to validate a date format when you use a form view to enter the record into the database? I have a form view that is used to sign out for the day or week. I need to dates to be in mm/dd/yyyy format. Is there someway to use the validation controls so that it won't let you enter the record unless it is correct and will prompt them to enter the right info.
View 1 Replies