code-behind

I have stumbled across a problem with my asp.net form. Within my form the end user chooses a number of textboxes to be dynamically created , this all works fine with the following code: protected void txtAmountSubmit_Click(object sender, EventArgs e) { int amountOfTasks; int.TryParse(txtAmountOfTasks.Text, out amountOfTasks); for (int i = 0; i < amountOfTasks; i++) { TextBox txtAddItem = new TextBox(); txtAddItem.ID = "txtAddItem" + i; txtAddItem.TextMode = TextBoxMode.MultiLine; questionNine.Controls.Add(txtAddItem); txtList.Add(txtAddItem.ID); } } However this has also caused a small problem

I want to create new gridview in codebehind file asp.net C#. Exactly I want to add such boundfield to the gridview by c# code: <asp:BoundField DataField="p_type" HeaderText="type" ItemStyle-Width="70px"> <ItemStyle Width="70px"></ItemStyle> </asp:BoundField> I crated new gridview with following code: GridView GridView1 = new GridView(); GridView1.AllowPaging = false; GridView1.CellPadding = 4; GridView1.GridLines= GridLines.None; GridView1.AutoGenerateColumns = false; And I want to add new boundField to this gridview. How to make that with c# code? this article explain you how implement in c#

Basically I'm trying to do this: Path path = new Path( ); string sData = "M 250,40 L200,20 L200,60 Z"; var converter = TypeDescriptor.GetConverter( typeof( Geometry ) ); path.Data = ( Geometry )converter.ConvertFrom( sData ); but it won't compile, silverlight does not appear to have a TypeDescriptor class... AnthonyWJones Try this:- Path path = XamlReader.Load("<Path Data=\"M 250,40 L200,20 L200,60\" />") as Path; Edit Should have been: public static GeneratePath(string data) { string pathEnvelope = "<Path xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" Data=\"{0}\"/>")

Is it possible within my code-behind file to set the asynchronous mode of the page directive. I have no way of directly modifying the <%@Page %> attribute and and struggling to find a way to implement this in my code-behind. I have tried in my Page_Load method to add Page.AsyncMode = true , but it returns the following error: is inaccessible due to its protection level Is there any way to do this? Without being able to directly modify the master page? No, you cannot change the asynchronous mode of a page in the code-behind. An asynchronous page implements the IHttpAsyncHandler interface, and

I want to copy a List of Objects, but i keep getting references between the objects. List<MyClass> copy = original; When i change the value in the copy List, the original List ends up modified also. Is there a way to work around it? You can do this: List<MyClass> copy = original.ToList(); This would make an element-by-element copy of the list, rather than copying the reference to the list itself. 来源： https://stackoverflow.com/questions/15330696/how-to-copy-list-in-c-sharp

How can I bind an IList item to a ComboBox through the codebehind.cs file. Please explain with simple steps. I need the steps for two way binding, not by setting ItemsSource . I need something like: myComboBox.SetBinding(ItemsControl.ItemsSourceProperty, new Binding { Source = myList }); but I need the SelectedItem also. Thanks Do you mean something like this? myComboBox.SetBinding( ItemsControl.ItemsSourceProperty, new Binding { Source = myList }); myComboBox.SetBinding( Selector.SelectedItemProperty, new Binding("SelectedItem") { Source = mySelectedItemSource}); 来源： https://stackoverflow.com

I have a form as <form id="form" action="" method="post" runat="server"> When accessing in C# code-behind via HtmlForm form = (HtmlForm)this.FindControl("form"); and attempting to change the action with form.Attributes.Add("action","./newpage.aspx?data=data"); or form.Attributes["action"] = "./newpage.aspx?data=data"); no change is made. The form still routes to the same page. How can I dynamically change the form's action in codebehind? EXTRA DETAILS: I have a page that has a get variable. That get variable needs to be sent in the action portion of the form. So, page1 response has getvar1.

I'm creating one html table. I want to hide the table row. I'm putting the attributes runat=server and id for the particular row, but the row has client side code in it similar to the following code. <% if ((strFlag=="d") || (strApprvdFlag=="y")) {%> After call this line, I got this error. Code blocks are not supported in this context in asp.net control. Below is my sample code: <table> <tr colspan="4" ID="trMedical" scriptrunat="server"> <td style="WIDTH: 45px;HEIGHT: 12px" align="left" class="LabelTaxText" width="45"><b>G  </b> </td> <td style="WIDTH: 182px;HEIGHT: 12px" class="LabelTaxText"