I want to use some of the validation controls in a project. I plan on useing the required filed , range and regex validators. Do template fields have to be used with the Data Controls, such as Grid View and Details View, in order to use the validation controls? If so is this true with updating and inserting?
View 4 Replies
I am using one datalist control for uploading multiple images.I hv used one Asp:FileUplaod Control and one button in one itemtemplate.I am using reqired field validator and regular expression validator for file upload cntrl I am assigning validation group for both of them on ItemDataBound event of my datalist so that each upload cntrl hv same validaton group as required field and regular expression validator.Now what i want to do is - i want to show my error message in validation summary which is right at the top of the page.I want one know how to write javascript that will assign validation group of my control in datalist on which i click ?
View 1 RepliesIs it possible to do client side validation on a detailsview (insert or edit) without using validation controls? I.E. somehow capture the onClientClick event of the autogenerated Insert/Update link buttons to call my javascript function?
View 1 RepliesOn the Timelog page, I want to put 2 dropdown list: 1 Manufacturing Project, 1 Engineer Project. However, users can choose either Manufacturing project dropdown or Engineer project dropdown (not both).
View 4 Repliesi created a gridview with two columns and 8 rows dynamically. All the rows are empty and editable at runtime. I am giving column names for this grid from some other .aspx page by passing column names using querystring.Because i am using this grid for three different pairs of column names. i would like to know how to apply Required Field Validator, Regular Expression Validator and Range Validator on Gridview textboxes. So that by using those validators i want to validate user inputs. And i would also like to know how to add rows at runtime for this grid.
I am using ASP.net 2.0 and C#.net for this.(Visual Studio 2005)
The code i am using to create gridview is below.
[code]....
the page can be seen here [URL]
the client side validation is working for the adding date and time, but there is no validation firing for the count and room fields, I think i have coded them all the same, see sample for time and room below, maybe somebody see's something i missed? the validation group fires when the add button is clicked. also if possible I would like to get validation messages to appear in a validationsummary control that I already have coded and that is working when using the edit/update the rows presented with existing data.
[code]....
The requirement is like the users should enter data and should be able to see the entered data before final save. So, I've taken a gridview and binded it to a temptable which will don't have any data initially, so on the first page load the datasource will be empty and the emptydatatemplate will be shown to the user. On this EmptyDataTemplate I've prepared a dataentry screen where the user can give the information and can save the data. After saving the data the data will go to the temptable and the gridview will get populated with the data the user has entered. For next go, the user can enter records through the gridview footer row. In this way I'm doing my things.
Now I haven't done the validation yet, I wanted to do a validation of the user input on gridview emptydatatemplate and gridview footer as well. In order to do that I've created one Button object on RowDataBound and assigned the gridview emptydatatemplate save button against it and also binded one javascript function with this button like below.
[Code]....
The javascript is working fine and returning boolean values based on the validation done.
But the problem is after I did this validations the RowCommand event of my gridview is not firing. I'm inserting this records on this event only based on the commandname of the button. But if I remove this javascript validation everything works fine for me.
how to use validation controls with item template(not editItemtemplate). I want to display text boxes irrespective of mode so i am using textbox inside itemtemplate.There is a save button which will be clicked after entering prices for all the rows.
I have a grid with two columns. In one column the user can enter the price and for that i use textboxes inside ItemTemplate. So there is not editmode here.It will always in the edit mode, I meant the user can enter values always.After entering values user can click on Save button and on this i need to validate the values, i meant the prices the user entered. I tried using validator controls inside ItemTemplate column but it is not working.
<asp:TemplateField HeaderText="ForecastPrice">
<ItemTemplate>
<asp:TextBox ID="txtPrice" runat="server" Text='<%# Bind("ForecastAssetPrice") %>' Width="90%" ></asp:TextBox>
[code]....
So I have a gridview control and I am binding it's datasource dynamically base on a dropdownlist. The gridview contains autogenerated columns with auto generated edit buttons. The datasource binded to the gridview is IQueryable<T> where T will be different for different datasource.
My detail problem is below:
A GridView binded to datasource dynamically with all autogenerated columns. When user click edit link, it will display value in autogenerated textboxes.
When user click update link, I am able to capture the user entered value in the textboxes in RowUpdating event, then pass those values to Linq update function to update the database. Now, the problem begin when I try to dynamically add validation controls to each editing row. In RowDataBound event, I am checking the editrowindex then adding validation control to gridview cell and pointing to cell.controls[0] which is the textbox control when the row is in edit mode, I am dynamically setting the textbox control id so that the validation control can set controltovalidate property. The validation control works, but the updating function is setting everything on the grid to empty string.
I am check the textbox text value in the loop, which returns "" for all cells except the id column. It was returning the correct value before I add the validation control. I guess since I added the validation control on rowdatabound event, will it rerender it's own autogenerated textbox in edit mode so that the text value of textbox no longer available in rowupdating event?
Is there a better or correct way to get the cell textbox value? I am using ((TextBox)dc.Controls[0]).Text where dc is DataControlFieldCell in rowupdating event.
I add sitemap to my project and add this into it
[Code]....
[Code]....
[Code]....
popdown appears. but it doesn't. so I ask if there is any thing must I do to appear the popdown.
I there I have recently created an ASP website wich uses .net 4 and SQL db but soem some reason even displaying 20 records in a gridview is slow... So after some reading I converted the website to a Web Application Project so its compile prior to publish.. But yet again this is a bit slow. pages loading time is not of a bit issue...
View 8 RepliesI think it is possible, what steps should I go through? And those videos all using Linq as data source, what if I have my own object data source and binding them in code behind, what about it?
View 3 RepliesSeem to have a problem validating values in a gridview - This is the scenario
I have a webform that allows the user adds values to a cheque amount field and 3 subaccounts fields - the 3 subaccounts have validators in place so they will always total up to what the Cheque amount.
Problem is After the data is added and validated it goes onto a gridview that lets users edit the data - This is where they are able to bypass validating the amounts. Is there a way to validate sums in a gridview ?
I am having dataset and I want to validate particular column for Integer(Numeric) value.
e.g.
ErrorRows = dt.Select("LEN(Year) <> 4 ")
Above I have to validate Year column for Numeric value otherwise it should give me erroneous records which have data other than numeric.
I want a regular expression validation to validate a textbox like this "1051,2034,3045,3445". Dont allow these formats "101,343,,34,,",23,4334,34,". It should allow only this format "1051,2034,3045,3445".
View 4 Replies me how can i make each cell of a gridview selectable(Web Project)?
Basically my requirement is to do some action when i select a cell without having postback. And I am not allowed to use ajax or jquery here. how can i do this using only asp.net gridview and javascript(possibly).
For Example, i want to make some control visible/invisible or enable/disable based on the cell selected.
I hope someone could clear up my confusion on how this gridview works.
Scenario: We are utilizing edit template within the gridview linked to a validation summary.
Question:How do I give the validation summary focus when a user incorrectly "updates" information within the gridview.
I have tried placing:
Dim reqFldVal As RequiredFieldValidator = CType(grdOrgFullList.Rows(e.RowIndex).FindControl("RequiredFieldValidator1"),
[code]...
Inside the an row updating subroutine with breakpoints but the code is never executed.
I'm trying to do a validation for checkboxlist on a server side as all java approaches didn't work. However, probably due to the checklistbox is inside a listview the FindControl is empty. how to find a control inside a listview on a button click event when the button is outside of the listview.
<asp:CustomValidator
ID="rfchblAnswers"
runat="server"
ErrorMessage="* Please, select at least a one checkbox."
OnServerValidate="cblCustomValidator"
EnableClientScript="false"
ValidationGroup="EnterData"
Display=
"Dynamic" />
Public
Sub cblCustomValidator(ByVal objSource
As Object,
ByVal objArgs As ServerValidateEventArgs)
Dim chblAnswers As CheckBoxList = _
CType(lv_qstns.FindControl("chblAnswers"), CheckBoxList)
If CType(lv_qstns.FindControl("chblAnswers"), CheckBoxList)
IsNot Nothing
Then 'it's not working here as it cannot find the control inside a listview
Dim boolFlag As
Boolean = False
For Each li
As ListItem In chblAnswers.Items
If li.Selected Then
boolFlag = True
End If
Next
If boolFlag Then
objArgs.IsValid = True
Else
objArgs.IsValid = False
End If
End If
End Sub
i am using the required field validation and Reqularexpressioncontrol in gridview. Fields are in the gridview are in template, but only the edit button it is not templeted, this edit buton is of type Imagebutton and same goes with canel and update.
1_ Do i have to use the Templeted fields for edit/cancel/ and update as well in order to use the validation?
2_Validaiotn should only work when user clicks on the Update button, it should not trigger when cancel button fired.
I am having some text boxes in my webform. I need to set numbers of words for each textbox. if i put more than defined no of words it should show msgs or popup msgs whatever it may be.
View 2 RepliesI have a ListView InsertItemTemplate where there is field (Date) using the AJAX Library CalendarExtender. I want to add some validation to this field, whereby they can't add a date that is later than today. So I have added a RangeValidator and tried to set its MaximumValue to DateTime.Now on Page Load. Unfortuantely it isn't working.
View 5 RepliesRangeValidator validation occurs on CancelCommand
[Code]....
I have the this current design. I use a web service/jquery perform client-side validation and to return 1 of 4 integers. At present I store it in a hidden field but it could be passed directly. I then deploy4 validators that when validated, validate the integer and trigger a custom error message. The ideal scenario I would like to be able to do this with one validator and switch the error message accordingly. On the server side the code could look like this:
[Code]....
As you can see my error messages are held as strings elsewhere which I reference for continuity throughout the project. unformtunately I don't know how to achieve this client-side by calling a javascript function. Sure I could hard code the messages in the javascript file as well, but this would mean that they were held in two places and suseptable to error. It may be an option to return an error message in the web service rather than an integer and trigger if it is blank.
I want some solution for my gridview to validated only selected rows.What is the senario:In my gridview there are 1 templatecolumn - Total Balance -txtTotalBalanceand1 another templatecolumn - Amount Received -txtAmountReceived There are checkboxes I want to compare only that row which is checked with txtTotalBalance with txtAmountReceived should not be greater than totalbalance.In current code all rows validating compare validator.That I don't want.Please give me solution-If possible then please send me the code also..
View 2 RepliesI've a form where I'd like to impede the user from entering any alphabits or special characters. The user can only enter numbers between 0 & 3( both inclusive) no more no less.
How can i achieve this ? I've used RangeValidator. Would this alone be suffice or do we also need to use Expression Validator ?
Here is what I've used :
<asp:RangeValidator ID="RangeValidator0" runat="server" ErrorMessage="Enter values between 0 & 3" ForeColor="Red" ControlToValidate="q1tb1" MinimumValue="0" MaximumValue="3" SetFocusOnError="true" Type="Integer"
ValidationGroup="rangeCheck">
I just want the focus to be in the same texbox if the user enters other than 0,1,2,3.
