I had a page inside a master one the page is like
[Code]....
[Code]....
and my code behind
[Code]....
On debugging I noticed that no values are taken from textbox and in postback the textbox is cleared.
I worked in viewstate stuff and enabled it for the textbox and page, but with no results.
I am using gridview control in asp.net and doing insertion using template field in gridview. In c# i am getting those textbox values by type casting and id should return a integer value. i enter values in all fields of gridview and giving a command name as AddNew to insert the new values, insertion takes place but all fields are empty and id field is 0. how to take the values from textbox and also i should return a integer value for id. i paste my code below.
protected void OnRowCommand(object sender, GridViewCommandEventArgs e)
{
TextBox txtNewName = (TextBox)GridView1.FooterRow.FindControl("txtNewName");
TextBox txtNewpwd = (TextBox)GridView1.FooterRow.FindControl("txtNewpwd");
TextBox txtNewId = (TextBox)GridView1.FooterRow.FindControl("txtNewId");
TextBox txtNewEmail = (TextBox)GridView1.FooterRow.FindControl("txtNewEmail");
TextBox firstName = (TextBox)GridView1.FooterRow.FindControl("txtNewFirstName");
TextBox lastName = (TextBox)GridView1.FooterRow.FindControl("txtNewLastName");
TextBox designation = (TextBox)GridView1.FooterRow.FindControl("txtNewDesignation");
if (e.CommandName.Equals("AddNew"))
{
int id = Convert.ToInt32(txtNewId.Text);.......
How Can I retrieve values from TextBox before RowUpdating function is fired? I have GridView with update panel which is sorted by two dropdownlists and I need autopostabacks to filter and bind gridview. Now I want to update row in my gridview but I can't get values from controls I'm getting old values from database. Do you the way that I can use values from controls before updating the row?
View 5 RepliesI add this code but textbox value show in empty in database .. On Button Click the GridView TextBox loose all data ..
public partial class keyexam2 : System.Web.UI.Page {
//SqlConnection con = new SqlConnection(@"Data Source=.SQLEXPRESS;AttachDbFilename=D:shubhangijayonlinepaperApp_DataQUIZ.MDF;Integrated Security=True;User Instance=True");
DataTable dt = new DataTable();
//DataRow row = dt.NewRow();
[CODE]..
I have an ASP.NET TextBox with TextMode = TextBoxMode.MultiLine that is used within an AJAX Update Panel. The .Text value has been pre-set to a value that has multiple lines.
When using Chrome(7.0.517.41) or Firefox(3.6.11) working with the controls posted back value on the server the carriage return is lost if the user hasn't edited the pre-set value.
E.g.
Initial .Text value set when the page loads:
[code]....
i have added one textbox as a template in my gridview.i want to get the values of textbox to a string when i enter values to the textbox.
View 1 RepliesI have this code, how will I write the code so I can check if a textbox i empty? This way want work. Now it goes in if cellPhone != null all the time.
[Code]....
I have an ASP .Net TreeView control that I am dynamically adding tree nodes to from my codebehind on Page_PreRender. The TreeView is populated nicely and the appropriate checkboxes are where they are expected to be. For each of these nodes the SelectAction=TreeNodeSelectAction.None. However, when accessing the TreeView CheckedNodes() collection in my codebehind after selecting a few nodes (checkboxes are selected) and clicking a submit button to post back to the server in the button click event, my CheckedNodes.count() = 0. I can not figure out why my CheckedNodes collection in the codebehind does not contain the nodes that I have checked from the GUI.
View 8 RepliesCode:
[code]....
I have two textboxes,Suppose I leave the textbox1 empty & press the button,Then alert is there enter value in Textbox1,When the user press ok,Focus is set to dat textbox,I want also to change the backcolor of dat textbox--I think so it is simple,Now when i enter the values in First textbox & press tab to move to second textbox,I wnat the first textbox color to be changed to white.
I'm writing a gridview in VB.NET that is bound programatically in the Page_Load function. I am binding the data in the 'If Not Page.IsPostBack Then..." structure. And as you can see, I'm using TemplateFields instead of BoundFields. And I need to access the e.OldValues in my RowUpdating function, but they come up empty.
Here's my code:
[Code]....
I have a problem with regular expression because I want to validate a textbox and I want that mark the error text when the textbox be empty.
View 1 RepliesI am using regex for server side validations.
I am facing a problem with regex. I want to check for sepecial characters like ><*&()%$@!~+...
I need to filter these special charecters...but the problem is in my 10 textboxes there only 3 are required...
I can submit the form without entering anything...but my regex is not allowing me to submit the form without giving a space from keyboard...
I just want to check for special charecters and empty textbox without giving a spacebar...
I just check these sites(http://regexlib.com/ and http://www.regular-expressions.info/) and read some documentation on regex...its kind of confusing....
Here is my regex for Middlename: ^[a-zA-Z''-'s]|[ ]{1,40}$ its worked but its not correct....then I changed it to ^[a-zA-Z''-'sd*]{1,40}$ this also not taking emptytextbox without giving a space...
My Goal:
In most of the textboxes I need to allow only numbers and - # _ in some textboxes....
For Address: need to allow alphabets and numbers and #-_' "
City: numbers and alphabets no special chars...
Main problem is I can write regex for most of these stuff but need to all textboxes without entering anything (empty textboxes).My work got stoped due to this.
I have a textbox named txtOrderDate on my web page. I have a VB.net subroutine that saves various textboxes from my web page to my SQL table using a stored procedure. If a valid date is entered into txtDate, then my save works correctly. I have a column named OrderDate in my table. This is the column I am saving txtOrderDate to. OrderDate is defined as a date column and null is allowed.
But if txtorderDate is blank, my subroutine bombs saying cannot convert string to date. I tried various things like making the value of txtDate = DBNull.value if blank but nothing works. Seems like there would be an easy way to do this.
i have a problem in validations. in my query
DateTime dateformat;
if (DateTime.TryParseExact(TxtDate.Text, "dd-MMM-yyyy", null, DateTimeStyles.None, out dateformat) == false)
{
lblErrMsg.Text = "Enter valid Txtdate";
return;
}
by using above query i am alert the if date entry format wrong. it is working fine but when ever if user not enter any date in TxtDate.Text then no need to alert just save datetime.minvalue. how to do it.
I'm working on ASP.NET 4.0 and I'm having problems for saving the selected value in a DropDownList.
I initialize it in the Web Control's PreRender method as follows:
if (!Page.IsPostBack)
LoadCountryList();
Where LoadCountryList's code is:
private void LoadCountryList()
{
var vr = new CountryRepository();
var countryList = vr.GetAllForList();
DdlCountry.EnableViewState = true;
DdlCountry.DataValueField = "code";
DdlCountry.DataTextField = "name";
dlCountry.DataSource = countryList;
DdlCountry.DataBind();
}
After I submit the form, I've noticed the DropDownList is empty(it's not before postback). If you take a look at my code, I've enabled the ViewState for this control, but I'm not getting any results yet. Does anybody know what's going on?
EDIT:
Here is the simple code of the control in the aspx file:
<asp:DropDownList Runat="server" ID="DdlCountry">
</asp:DropDownList>
I've looked at answers to some similar question but I still can't seem to figure this out. I think I'm misunderstanding something about how ASP.NET works.In the standard ASP.Net 4.0 'Create a new Account' form, I've added a DropDownList containing Roles to be selected for the new account. in the aspx page, the control looks like this:
<asp:DropDownList ID="RoleList" Width="100px" runat="server"></asp:DropDownList>
I am then populating the List in the Page_Load Event:
protected void Page_Load(object sender, EventArgs e)
{
RegisterUser.ContinueDestinationPageUrl = Request.QueryString["ReturnUrl"];
[code]....
I have a web form and I have a user control on it. This user control contains a panel with some user properties that are to be stored in a database. So far nothing fancy. The user control itself contains a panel and is working fine (all code to retrieve and store the values is working).
I used the default settings of creating a user control and one of them was AutoEventWireup=true. This works fine because I also have some dropdown boxes (and other fields) that need to be filled with values from the database and that happens in the Page_load event.
The panel specifies the 'DefaultButton' which calls a method when clicked to save the values after the user has changed them.
On this click the code of the method is called, I confirmed that, but I found out that the values of my controls on the user control (for example the Textbox control) are empty. As a non-ASP.NET developer I couldn't figure out why. So I changed some settings like AutoEventWireup to false.
Off course this resulted in my dropdown boxes no longer to be initially filled, but my surprise was big to find out my controls actually contained the values the user typed in.
Logically I need both the values and the dropdowns filled, but for now it seems one or the other.
I want That validate the textbox so this no be empty I put that
"[ws]{1,50}"
But I want that the error mark when the textbox be empty.
I need to validate textbox is not empty if check box is checked.
View 9 RepliesA form contains 2 cascading dropdowns. When an item is selected in the first dropdown, jQuery retrieves a list (json) from the server and fills the 2nd dropdown.
The user posts the page to the server, and when the page is returned the dropdown is empty because its not stored in viewstate.
What do you do in this situation? Is this the point where cascading dropdowns using jQuery and trying to make your page a little more stateless gets tedious?
I have 2 textboxes and a submit button inside a .net composite server control. I tried to only postback when submit button is clicked. I set autopostback = false for both textboxes. But either one still trigger submit button's onclick event by hitting "Enter" inside textbox. How can I stop postback by enter key?
View 2 RepliesI'm developing an aspx page with vb code.
I am trying to highlight textbox border in red instead on showing an error message in summary. I'm using a required field validator to validate the empty textbox How can i do so?
I have two textboxes where the user will input integers - i need to do a validation on these textboxes: txtStartIndex should be less than txtEndIndex - this works except with either one of the textboxes is left empty/blank how can i fix this?
<td align="right">
<asp:TextBox ID="txtStartIndex" runat="server" Width="50px"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtStartIndex" ErrorMessage="*" ValidationExpression="[0-9]*" ToolTip="Numeric Values Only"></asp:RegularExpressionValidator>
<td align="right">
<asp:TextBox ID="txtEndIndex" runat="server" Width="50px"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" ControlToValidate="txtEndIndex"ErrorMessage="*" ValidationExpression="[0-9]*" ToolTip="Numeric Values Only"></asp:RegularExpressionValidator>
<asp:CompareValidator ID="compareValidator1" ControlToValidate="txtEndIndex" ControlToCompare="txtStartIndex"Operator="GreaterThan" Type="Integer" Text="*" runat="server" ToolTip="EndIndex has to be greater than StartIndex" />
</td>
I want the validation condition to be: on a pair of textboxes, to be valid as long as at least one of them isn't empty.
So I put a customvalidator on the 2nd textbox, hooked up to the following server code and client code:
<script type="text/javascript">
function ECPhoneOrEmailRequired(source, args) {
var ecPhone = document.getElementById("txtEmergencyPhone");
var ecEmail = document.getElementById("txtEmergencyEmail");
if (ecPhone.value.length < 1 && ecEmail.value.length < 1) {
args.IsValid = false;
}
else {
args.IsValid = true
}
}
</script>
Protected Sub CustomValidator1_ServerValidate(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs)
'args.IsValid
If (txtEmergencyPhone.Text = String.Empty And txtEmergencyEmail.Text = String.Empty) Then
args.IsValid = False
Else
args.IsValid = True
End If
End Sub
From what I can tell thru breakpoints, this code works fine as long as there's something in one of the two textboxes. When both textboxes are empty, the code is never called - and so both boxes empty ends up being allowed.
So what's the correct way to validate one-or-the-other-nonempty condition?
How can I replace empty space in textbox with a dash (-) before form values are inserted?
[Code]....
I also tried using the datasource's Inserting method but neither works.
