I am building a form on an ASP.Net C# 4.0 page that will be adding dynamic controls (like text boxes, drop down lists, and file upload controls) using AJAX. I know how to add the controls them selfs from the code behind page bt what I cant figure out is how to add an asp:Requiredfildvalidator and other validation controls like that.
View 1 RepliesI load the controls from database in the Page_Preinit . The conrols like textbox,Dropdown wil load. Now i want to validate these controls . for example if i have the textbox for Email and phone no i want to add validation to these controls on runtime since the controls load dynamically .
View 6 RepliesI'm working on a very dynamic site build at the moment. What I'm trying to do is creating something like a survey that can be created dynamically from a control panel. In the control panel you add input fields (these are saved in a database), what the user then see is a form that I generate from the database. So if I add 3 input fields to the database the survey will contain 3 fields. If I add 20 fields the survey will have 20 fields.
Now my problem is that I want to validate these fields, and I would like to be able to hook me in with the standard validation flow. I can't create a Model with validation rules since the number of fields and their names are dynamic the only thing I know is what kind of data that is expected in every field (this rule is found in the database). In an ordinary case I would get the automatic highlighted fields that are not valid and so on thanks to the built in validation flow with ValidationResult and so on.
So the question now is can I somehow simulate parts of the validation and then hook me back in with the validation result, and if not valid, the form prints the error messages and fill the fields with the data that was given?
I have a dynamic Table which contain 8 rows and 8 Colums
Table t = new Table();
TableRow rr = new TableRow();
TableCell cc = new TableCell();
and in the each Cell CC I add a dynamic Button(Or Linkbtn)
LinkButton LB1 = new LinkButton();
LB1.Text = "AM";
LB1.ID ="Link1";
cc.Controls.Add(LB1);
rr.Cells.Add(cc);
LB1.Click += new EventHandler(LB1_Click);
t.Rows.Add(rr);
i have a table with 8 rows , 8 colums and each cell contain a LinkButton (which diffrent in IDs) I want to add Lable in the same cell of this LinkBtn(LB1) which it clicked but I cann't What shoud I write here?
void LB1_Click(object sender, EventArgs e)
{
// throw new NotImplementedException();
}
Lets say I have a Web Application with a menu of products. When a user clicks a menu item, then create and display a dynamic set of controls in an Update Panel. I am currently doing this however the PostBack and recreation of controls is tedious and resource intensive.
Not sure about this but is it possible to build a webpage with controls on it, then display it in update panel or IFrame? Then on post back you wouldn't have to recreate everything all over again?
I have a loop which creates for each item ID a Dynamic created checkboxlist control
how do I create a dynamic validation control on a dynamic checkboxlist?
I have a Webform with a TextBox (Static) and 3 TextBox (Dynamic - based on the following article: [URL].... )
How to use this scenario with a single GridView table?
Based on the User input, the GridView might have (1 + 3) columns; (1 + 6) columns; (1 + 9) columns; ...etc.
im creating dynamic buttons on page load and on the click event of button1 handlere iam creating more buttons this is going fine but on click event of button 2 work is not done so how to maintain a chain of creation of button on click events
protected void Button2_Click(object sender, EventArgs e)//
{
ClientScript.RegisterClientScriptBlock(this.GetType(), ((Button)sender).ID, "<script>alert('Button_Click');</script>");
Response.Write(DateTime.Now.ToString() + ": " + ((Button)sender).ID + " was clicked");
}
protected void Button_Click(object sender, EventArgs e)//this button click will call all the items related to department
[code]....
If there's a better way to accomplish what I'm attempting I haven't found it yet. That being said, I have create a gridview like the one here,[URL]And with some minor tweaking it working great for all my fields, checkboxes, etc. The issue is my last column is another gridview, and I'd like it to function the same. that is, a dynamic gridview inside of a dynamic gridview. I get that I have to create it initially with null values or it won't show up. I guess what I'm having trouble figuring out is instead of go will null data in the parent gridviews column, do I place my blank child gridview. Do I create and bind the child gridview first, or second. Generally just not sure. Also, as far as storing the data from the child gridview goes, will each one need it's own datatable?
[Code]....
[Code]....
I've noticed that all of the text boxes in the template fields of by details view don't all line up exactly the same. I'm floating all of them to the right so I had originally expected them to line up the same. I've also noticed that the text boxes that have two validation controls, such as a REV and RFV, are further to the left than the ones that only have one validation control.
Is this because of the space that the validation control needs to render the , or what ever is chosen to be rendered? This explanation seems to match the pattern.
Im using vb.net 3.5, ajax, sql 2005, been programming a while but still consider myself a novice an need some advice. Im building a cms type tool for a knowledge base. And on one of the web forms i need to be able to allow the user to add a set of controls each time they click on a button, the controls they add will be fixed, a set of 3 textboxes. I then need to be able to run a for each loop to check that they have populated the textboxes before running an insert via the tableadapters insert method.
View 5 RepliesI want to set a RequiredFieldValidator to validate a control that is created dynamically in a ListView.
The <asp:RequiredFieldValidator> is basically at the root of the page. I set the "ControlToValidate" attribute to the name of the dynamically created control in the ListView control of the .aspx file but at runtime I get the following error message:
Unable to find control id 'TextBoxUserName' referenced by the 'ControlToValidate' property of 'RequiredFieldValidator1'.So, I figured, "Ok", this doesn't work because maybe the ListView hasn't been created when the RequiredFieldValidator control is initalized so I moved the initialization of the RequiredFieldValidator to the "ListView_DataBound" event handler to ensure the control does exist.
ListView1_DataBound(object sender, EventArgs e)
{
RequiredFieldValidator1.ControlToValidate = "TextBoxUserName";
}
Same error message.
P.S. Anybody else wish Microsoft would allow us to select a font and font-size when posting messages without having to arduously edit HTML code directly? If I do a cut'n'paste Im stuck with that font-size for the rest of the message. And I see this time, the font size even went smaller arbitrarily. There are 18 iconso n the toolbar. One more for font-size can't hurt. I love the overall look and feel of the redesigned website but its still got a few bugs.
I have <asp:Button ID="btnDelete" ..../> and <asp:DataList ID="lstOrder"..../>
"lstOrder" has <asp:CheckBox ..../> for each "lstOrder" item. I am binding "lstOrder" to DataTable at run time (DataTable is being created dynamically"
"btnDelete" first loops through the "lstOrder" and stores the indexes of items which are marked(checked). Next rows are deleted from the DataTable and "lstOrder" is binded again.
I don't want to postback if none of the items are marked in the "lstOrder"
How to validate ?
I have a Gridview on my aspx and i wonder if i can use validators like requiredfieldvalidator,comparevalidator or etc to validate a row is added or NOT?
View 4 Repliesi am using c# and want to do a validate to edit and do a new fild.
View 7 RepliesI have a gridview in which I have a column for Percentage and I enable footer to display the totol of that columnI have in my grid Edit and Delete template column...I need to validate when user click Edit if he inserts a value inside the textbox of a row in the column Percentagenot to exceed the 100 % ..the sum of all rows should be 100 % but i need to validate by a message to ask user :please insert another value cause sum is exceding 100 % then he can clicks on updateI want to validate the data where sum of values of all rows of "Percentage Column" should not exceed 100. If it exceeds more than 100, a pop up window needs to be shown saying "value exceeds 100, Re-enter" and . All of this validation should happen with out a postback.
View 1 RepliesI need to validate a field when changing pages in a GridView:
<asp:GridView ID="GridView1" AllowPaging="true" PageSize="7" PagerSettings-Mode="NextPrevious"
PagerStyle-ForeColor="#1A7A5E" PagerSettings-NextPageText="Continue" OnPageIndexChanged=""
runat="server" DataSourceID="mainDS"
DataKeyNames="id" AutoGenerateColumns="False" RowStyle-BackColor="LightGray"
[Code]....
I need to validate and read edited values from a gridview. Here is the scenario,I have a gridview which has two columns Iteam name and Item Rate. Number of rows are dynamic depending on the user. I get the Text boxes filled with DB data.
I need to do this,
1) Validate if the user has entered numeric using front end validation
2) Read the edited values by user for each row and insert into the database in server side
Below is the gridview Source I have
[Code]....
I am unable to read gridview contents
trying to restrict the "Administrator" from deleting the product when the product is still "Available" or "unsold".When a user buys the product the status will become "Sold", and when the product is not sold, the status will be "unsold". i want to do a validation where there will be a prompt when the administrator tries to delete the product that is "Available" or "unsold".
I've tried many ways by using OnItemDeleting to create the prompt, but it didn't seem to work together with OnItemDeleted. The record will remain in the database even when deleted or there the prompt is not working. Please tell me how do i go about doing the OnItemDeleting when the status changes. Or is my method wrong.
This is my code for the DetailsView
[Code]....
This is my code for the OnitemDeleted
[Code]....
I have tried to validate using OnitemDeleting together with OnItemDeleted(using the previous code above) to restrict the quantity before. But it didn't work.
[Code]....
- I have a GridView , I want add a row FooterTemplate to add a new record in GridView . But I want to validate TextBoxs in FooterTemplate. My language I using is C# , Web Form .
Here is my code :
private bool Validate()
I'm trying out the jQuery Validation plugin jQuery Docs Here is the markup of my form:
<% using (Html.BeginForm("action", "contoller", null, FormMethod.Post, new { id = "sxform" })){%>
<div id="manifest">
Manifest Option:<br />
<%= Html.DropDownList("docid", ViewData["manifests"] as SelectList, new { @class = "required" })%>
</div>
<div id="release">
Release Version:<br />
<%= Html.TextBox("release", null, new { @class = "required" })%>
</div>
<div id="locale">
Localization:<br />
<%= Html.DropDownList("localization", ViewData["localizations"] as SelectList, new { @class = "required" })%>
</div>
<div id="label">
Label:<br />
<%= Html.TextBox("label", null, new { @class = "required" })%>
</div>
<div id="session">
Session ID (optional):<br />
<%= Html.TextBox("sessionInput", null, new { @class = "required" })%>
</div>
<div id="submit"><input type="submit" value="Build" /></div>
<% } %>
JS:
$(document).ready(function(){
$("#sxform").validate();
});
I am using MS MVC HTML Helpers to render this form. The resulting markup looks fine. IE each input and selection element contains the attribute 'class' with the value 'required'. When I submit this form the validation does noting.
How to validate user entry to cell in GridView and replace the cell value on the other column?
Ex :
i have a gridview with 2 columns (A & B), on both columns i change it to TemplateField (TextBox).
Now on whatever row on column A, i want to validate the user entry when user leave the cell, how to achieve that ?
Based on user entry on column A, i will do some data lookup and get a value returned from the server, how to tell the gridview to replace the value on column B (on the same row) based on the value returned from the server.
I am working with VWD Express and Visual Basic. take this into consideration if you are willing to answer my question. I do have the following code for a GridView.
<asp:GridView
ID="OpenCloseUDTIGameThreadGridView"
runat="server"
AllowPaging="True"
AutoGenerateColumns="False"
DataKeyNames="AutoNumber"
DataSourceID="OpenCloseUDTIGameThreadSqlDataSource"
CellPadding="4"
ForeColor="#333333"
PageSize="100" >
<Columns>
<asp:TemplateField HeaderText="Picture">
<ItemTemplate>
<asp:ImageButton
ID="ThumbNailImageButton"
runat="server"
Width="75px"
PostBackUrl='<%# string.Concat("~/Classifieds/DetailPage.aspx?AutoNumber=",Convert.ToString(Eval("AutoNumber")),"&FlagForm=NoSubmitted") %>'
ImageUrl='<%# IIF(System.IO.File.Exists(Server.MapPath(string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"))), string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"), "~/UploadedImagesClassifieds/NoPicture.gif")
%>' />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:CommandField ShowEditButton="True" />
<asp:BoundField DataField="TCategory" HeaderText="Category" ReadOnly="True" SortExpression="TCategory" />
<asp:BoundField DataField="TItemTitle" HeaderText="Item Title" SortExpression="TItemTitle" ReadOnly="True" />
<asp:BoundField DataField="TUDTIThreadActualStatus" HeaderText="Actual Status" SortExpression="TUDTIThreadActualStatus" />
</Columns>
</asp:GridView>
As you can see the second cell in each row is a EditButton, and the only cell that could be updated by users is the last one, DataField = TUDTIThreadActualStatus. I just want to know what could be the easiest way to validate the user entry when the row is in edit mode. Is there anyway to validate the textbox control with a validation control or is better to used code behind. Either way may you explain and drop some code if posible.
I have little strange question. I would like to Validate my Page Controls on the button click which is there in the User Control. This user control is placed on the Page. If I check Page.IsValid property on button click event, it returns false. But Validation Summary message doesn't popup. So user doesn't know what's happening. It will not save the information and it won't give the validation message too.
View 4 RepliesI am using a gridview that contains an asp:fileupload so that when the user clicks 'edit' they can upload a pdf. I need to validate the size of the file, it needs to be less then a certain size. I tried to use a custom validator, but it never get called when the user updates. How can I validate the file size on edit in the gridview?
View 1 Replies