I have developed a web application in Asp.net with C#. My requirement is to add an extra property to textboxes in all forms. The property should be "SID". I don't want add an exterban control i want to add extra property with the available textbox.
View 1 RepliesI hope somebody can guide me to overcome below challenge.
My form has three dropdownlist controls and one listview. Everything works fine if I don't try to pass multiple querystrings to get different URL on the same page. But challenge comes when I try to pass multiple querystrings to show different URL's for SEO.
Following are the ID's:
1. DropDownList1= Country
2. DropDownList2= State
3. DropDownList3= City
4. Listview1= Resturants (I am not including Code .....yet)
With my code DropDownList1 holds the state and passes the value to URL OK .When I try to select
different value in DropDownList2 or DropDownList3 are able to
pass the vaule to URL but in the form they stay on the first item and doesn't change and so does Listview1.
Here is my code:
<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Data" %>
<!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">
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
if (false == IsPostBack)
{
if (Request.QueryString["Brand"]!= null)
{DropDownList1.SelectedValue = Request.QueryString["Country"].ToString();}
if (Request.QueryString["Gender"]!= null)
{DropDownList2.SelectedValue = Request.QueryString["State"].ToString();}
if (Request.QueryString["Category"]!= null)
{DropDownList3.SelectedValue = Request.QueryString["City"].ToString();}
}
}
protected void DropDownList_SelectedIndexChanged(object sender, EventArgs e)
{
Response.Redirect("/resturants.aspx?State=" + DropDownList1.SelectedValue + "&State=" + DropDownList2.SelectedValue + "&City=" + DropDownList3.SelectedValue);
}
</script>
<head></head>
<body><form id="form1" runat="server">
<asp:DropDownList id="DropDownList1" runat="server" AutoPostBack="True" DataSourceID="AccessDataSource2" DataTextField="Country" DataValueField="Country" ForeColor="#808080" OnSelectedIndexChanged="DropDownList_SelectedIndexChanged" >
</asp:DropDownList>
<asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="../database.mdb" SelectCommand="SELECT DISTINCT [Country] FROM [Country] ORDER BY [Country]">
</asp:AccessDataSource>
<asp:DropDownList id="DropDownList2" runat="server" AutoPostBack="True" DataSourceID="AccessDataSource3" DataTextField="State" DataValueField="State" ForeColor="#808080" OnSelectedIndexChanged="DropDownList_SelectedIndexChanged" >
</asp:DropDownList>
<asp:AccessDataSource ID="AccessDataSource3" runat="server" DataFile="../database.mdb" SelectCommand="SELECT DISTINCT [State] FROM [table] WHERE ([Restuarant NAME] LIKE '%' + ? + '%')">
<SelectParameters>
<asp:controlparameter ControlID="DropDownList1" Name="Restuarant_NAME]" PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:AccessDataSource>
<asp:DropDownList id="DropDownList3" runat="server" AutoPostBack="True" DataSourceID="AccessDataSource4" DataTextField="City" DataValueField="City" ForeColor="#808080" OnSelectedIndexChanged="DropDownList_SelectedIndexChanged" >
</asp:DropDownList>
<asp:AccessDataSource ID="AccessDataSource4" runat="server" DataFile="../database.mdb" SelectCommand="SELECT DISTINCT [City] FROM [table] WHERE (([State] = ?) AND ([Resturant NAME] LIKE '%' + ? + '%'))">
<SelectParameters>
<asp:controlparameter ControlID="DropDownList2" Name="State" PropertyName="SelectedValue" Type="String" />
<asp:controlparameter ControlID="DropDownList1" Name="Resturant_NAME" PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:AccessDataSource>
I have created a class which inherits the HyperLinkField. I need to find the data values of the fields specified in the DataNavigateUrlFields property. I have not been able to figure out how to do this.
View 1 RepliesA common problem in repeater controls where you want to display data for update (like a list of user phone numbers that can be updated and submitted back to the database) is where to store the database unique row identifier. So, I created a custom Textbox control that I've added a Data property to. I populate this data property with the unique row id. The problem is that when I post back the list and go through the repeater items the control's data property is null. The custom control looks like this:
[Code]....
The tag in the repeater looks like this:
[Code]....
I have a custom checkbox with the same data property and it works fine. I actually put in the same repeater with the textbox control and the checkbox control have the row id on postback but the textbox did not. Is there some limitation on the textbox control that might be causing this.
I have created a custom text box with property "key"(ASP.NET C#).I want to get the value of this property "key" using java script.How can I do this?
View 2 RepliesI'm tyring to write a simple DetailsView only used for inserting new records that will pre-fill a textbox with a query string value. Here's the DetailsView:
[code]....
All I want to do is set VenueID_FK.Text to = the "VenueID" querry string. I also want the user to be able to see the VenueID number as they are filling out GridView1.
I know this is probably a simple thing, but I am very new to asp.net. I thought I could handle this in the page load event, but when I try something like this
TextBox VenueID_FK = (TextBox)DetailsView1.FindControl("VenueID_FK");
And then follow by setting the Text property programitically. I've accomplished something similar to this on a different page using a FormView, but only for ReadOnly mode and it was handled in the databound event on that page.
I get the error "The name 'DetailsView1' doesn't exist in the current context." when trying to do the above mentioned. When trying the same line in the databound event here, I get the same error.
I have a gridview with a date field. I don't want the user to be able to type in their own date and mess up the format so I made the property readonly. That date is then set by a point and click interface. This is all working fine but when the user clicks update this field doesn't update because it's readonly. If i turn readonly off it works so is there a way to turn off the readonly property right before submit?
View 7 Repliesi have some textboxes in my parent page and a search button. when the search button is clicked, my modalpopup pops up. after chosing (clicking on the select button of the row) an entry from a gridview within my modalpopup (each row in the gridview has a buttonField), the rowCommand_Event fires... within this event i try to set the .Text property of some textboxes within the page containing my modalpopupExtender... i get no exceptions, but the textboxes are not set...
ModalPopupExtender:
[Code]....
ModalPopupPanel:
[Code]....
RowCommandEvent:
[Code]....
I m trying to create a custom textbox with a enum kind property in it(like textmode).the enum values will come from database..but enums cant be dynamic..is there another way out??
View 3 RepliesI using VS2005 asp.net 2.0 (VB.net).
I have a question. I have a Parent page (parent.aspx) In Parent page it will call a Pop Up page(pop.aspx) then choose the data from Popup's gridview pass back the data to parent page gridview.
I need an idea how to check/highlight the data which is already selected when user open the Popup again.
So what I'm trying to accomplish is this
[Code]....
The user control has public properties named accordingly and the page has protected properties accordingly which I've verified have the desired values.
For some reason the values are always empty strings or 0s in the usercontrol, no matter what the page property is.
I know that how to create custom control and add custom property.
I want to create property like DataSource to my custom control.
I need to do edit funtionality for registration forms (5 in number) in a trading system. Requirment is to do it in a way that user edit details in a form and click next or previous button and data will be saved somewhere until user reach last form and click save button. On this click all changes will be updated to database table. where I should hold this temporary data ? I cant use database tables for this. There come many options in mind like cach, session and application variables. But I am confuse which way will best performance wise. There are 5 forms and every form has 15 to 25 fields in it. I dont know expected no of users but hoping a good count.
View 8 RepliesI tried to add a custom property to the data model:
public partial class Department
{
public string ExtensionIdName
{
get
{
return Extension.ExtensionName;
}
set
{
}
}
}
It seems that it works, but when I bind the data to a ListView it shows all the properties except the property I added manualy (ExtensionIdName).
I have some (probably very basic) questions about developing custom controls. I am wanting to derive a set of button controls, and the first one I have started on is a "DeleteButton", that has a additional property (DeleteConfirmationText) that is built into the OnClientClick attribute. To get that added, I overrode the Render method as follows:
[Code]....
This all works well. Now, I will add some logic to make sure that there is some text in the DeleteConfirmationText property, but that isn't the intent of my question.
What I am also wanting to do is to override some of the default property values, so I added that to the default constructor:
[Code]....
Now, in the designer in VS2008, and I look at the properties for the control, there isn't a default value shown in the "Properties" section, and the Causesvalidation still shows the underlying classes default value of "True". As well, in design mode, where the GridView control that containse my DeleteButton control would be displayed, there is an error box "There was an error rendering the control. 'Are you certain you want to delete this attorney?' cound not be set on property 'DeleteConfirmationText'. Here's the markup where I am defining the deletebutton control:
[Code]....
What am I doing wrong?
I am going to use this article but I don't know how to add the Search which is the dropdownlist and textbox
The data in dropdownlist is ContactName and CompanyName
[URL]
Also I would like to know how to sort the gridview in Header
How insert a drop list property into a custom webcontrol? This a drop list property is show all textbox control on usercontrol or webpage.
View 3 RepliesIam developing a custom checkbox control deriving from the 'compositecontrol' which i need to use it for a composite control purpose.
public
class
TngCheckBox :
CompositeControl
{
i have written the required properties which are working fine except the "checked" property. here is my code for 'checked' property. i tried both the below ways (commented one and not commneted) . the problem is the 'checked' value is not setting the value at the get set part of the property.its assigning the value at the design time , but when i check and uncheck its not updating the property value.which is resulting me wrong .
[Code]....
Iam developing a custom checkbox control deriving from the 'compositecontrol' which i need to use it for a composite control purpose.
public
class
TngCheckBox :
CompositeControl
{
i have written the required properties which are working fine except the "checked" property. here is my code for 'checked' property. i tried both the below ways (commented one and not commneted) . the problem is the 'checked' value is not setting the value at the get set part of the property.its assigning the value at the design time , but when i check and uncheck its not updating the property value.which is resulting me wrong .
[Code]....
I have a custom control, inherited from Button. This is the class definition for the control and 2 properties:
[Code]....
I show you 2 properties, only to illustrate the problem.
as you see Aplicacion property is of a custom type Sistema, and Roles property is of type List<UserRol>.
The Aplicacion property is rendered well, this way:
[Code]....
The problem I have is with List<UserRol>. I couldn't get it to be rendered. I expeect to be rendered this way:
[Code]....
Finally, this is the TypeConverter and Editor definitions for the list:
[Code]....
The UserRol class is a typical class, without any special attributes.
I have discovered that when I use the custom editor for Roles property, the collection is not persisted. When I use the default editor for the collection, the collection is persisted.
I need to create one custom text box control which should be bind with data base.
I am referring following link...
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.databoundcontrol.aspx
I used DataBoundControl to create my control but i am not able to do it properly.
public class SimpleTextBoxControl : DataBoundControl
{
private TextBox nameTextBox;
public string DataTextField
{
get
{
object o = ViewState["DataTextField"];
return ((o == null) ? string.Empty : (string)o);
}
set
{
ViewState["DataTextField"] = value;
}
}
[
Bindable(true),
Category("Data"),
DefaultValue(""),
Description("The text to display on the link."),
Localizable(true),
PersistenceMode(PersistenceMode.InnerDefaultProperty)
]
public virtual string DataTexValue
{
get
{
string s = (string)ViewState["Text"];
return (s == null) ? String.Empty : s;
}
set
{
ViewState["Text"] = value;
}
}
protected override void PerformDataBinding(IEnumerable retrievedData)
{
if (retrievedData == null)
return;
base.PerformDataBinding(retrievedData);
Controls.Clear();
nameTextBox = new TextBox { ID = "nameTextBox" };
foreach (object dataItem in retrievedData)
{
if (DataTextField.Length > 0)
{
nameTextBox.Text = DataBinder.GetPropertyValue(dataItem, DataTextField, null);
}
DataTexValue = nameTextBox.Text;
}
this.Controls.Add(nameTextBox);
}
}
I am using Visual Studio 2008. I have created a login screen and when user enters invalid userid or password, I am displaying error message in label by checking the database.
I am clearing the label, txtUserName and Password on click of Refresh button. But still the label message is appearing because UserName and Password controls are not clearing
How would I add a (dropdown) list of available values for a custom server control property?
(Just like 'Visible' property of most controls has valid values of 'True/False' and nothing else can be entered or selected)
i created a custome control wit the following code.
[Code]....
from aspx page, when i click the link button to get the data in my composite control.
i get an empty Fields.
Traditionally with an Object Data Source, the wired up class will have its public properties available for binding (i.e. Gridview columns, etc.) which works well. But what if one of my wired up business objects has a property that is an object itself; can I drill down to a property on that object property and still use it?
So in additiona to the traditional:MyBusniessObject.OrderID...I want to use:MyBusniessObject.Customer.NameID
Your 1st response might be to just wire up the 'Customer' class, but I need properties both on 'MyBusinessObject'and 'Customer'. I do not think this can be done, as the ODS will not display properties on an object instance property. I have tried manually typing in the drilled down value as well, but that wasn't a success either.