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That won't work, the professor does not know, he has been asking the same problem for
many years now, hoping to finally get a solution.
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Hi All,
I have 5 textboxs, 1 button and 1 Gridview control.
I just want that when I click the button, text of each textbox will be added in the Gridview in separate column. Each time I will click the button, a new row must be inserted in the Gridview below the last row.
Please tell me some simplest way to do so. I have tried it by binding Gridview to List<> datasource but the problem is that when ever I clicked the button, new instance of List<> is created ( e.g List<T> mylist = new List<T>(); ) and the any existing data in the List<> is lost. I used my own entity in the List<>.
Please help me with this or any other simple idea in C#.
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The list idea will work fine. It's your code that is the issue. Have the list as a member, add to it and rebind.
Christian Graus
Driven to the arms of OSX by Vista.
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Grid.aspx -- Page Design Code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Grid.aspx.cs" Inherits="Grid" %>
<!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" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table style="width: 287px">
<tr>
<td>
<asp:Label ID="lblId" runat="server" Text="Id"></asp:Label></td>
<td>
<asp:TextBox ID="txtId" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td>
<asp:Label ID="lblFirstName" runat="server" Text="First Name" Width="71px"></asp:Label></td>
<td>
<asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td>
<asp:Label ID="lblLastName" runat="server" Text="Last Name"></asp:Label></td>
<td>
<asp:TextBox ID="txtLastName" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td>
<asp:Label ID="lblNickName" runat="server" Text="Nick Name"></asp:Label></td>
<td>
<asp:TextBox ID="txtNickName" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td>
<asp:Label ID="lblCity" runat="server" Text="City"></asp:Label></td>
<td>
<asp:TextBox ID="txtCity" runat="server"></asp:TextBox></td>
<td>
<asp:Button ID="btnInsert" runat="server" OnClick="btnInsert_Click" Text="Insert" />
&nbsp; &nbsp; &nbsp;
</td>
</tr>
</table>
</div>
<br />
<asp:GridView ID="GridView1" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None">
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#999999" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
</form>
</body>
</html>
Grid.aspx.cs -- Code for Insert Data into Grid
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
DataTable dt = new DataTable();
dt.Columns.Add("Id", typeof(string));
dt.Columns.Add("First Name", typeof(string));
dt.Columns.Add("Last Name", typeof(string));
dt.Columns.Add("Nick Name", typeof(string));
dt.Columns.Add("City", typeof(string));
VSDataTable = dt.Copy();
}
}
private DataTable VSDataTable
{
get
{
return (DataTable)ViewState["VsDt"];
}
set
{
ViewState["VsDt"] = value;
}
}
protected void btnInsert_Click(object sender, EventArgs e)
{
DataRow dr = VSDataTable.NewRow();
dr["Id"] = txtId.Text;
dr["First Name"] = txtFirstName.Text;
dr["Last Name"] = txtLastName.Text;
dr["Nick Name"] = txtNickName.Text;
dr["City"] = txtCity.Text;
VSDataTable.Rows.Add(dr);
GridView1.DataSource = VSDataTable;
GridView1.DataBind();
ClearTextBoxes();
}
public void ClearTextBoxes()
{
txtId.Text = "";
txtFirstName.Text = "";
txtLastName.Text = "";
txtNickName.Text = "";
txtCity.Text="";
}
Faisal and Prathap
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If I have 2 datasets in which an updating to a table at dataset1 perform changes to the other table at dataset2... How to update this changes at Dataset2?. Must use tableadapter.fill( dataset2.mytable);
does exist other way than refill?. thanks...
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I can't really understand your explanation, but I think you said you wanted to make changes to, or update the contents of, DataSet2 based on a change in DataSet1?? There is no automatic facility to do this. You have to write the code to get the data for DataSet2 or make the appropriate changes to it.
Like I said, your explanation is not very clear or understandable.
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Yes Dave. This is the question. and sorry if it was ununderstandable.
Thank you very much....
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No, ADO.NET is disconnected, you need to refill the grid. Unless you can manually copy the specific change from dataset1, but that's more work, it just saves you DB resources.
Christian Graus
Driven to the arms of OSX by Vista.
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Ok, thanks. I looking the way to have a low cost at the network traffic, and refill method isn't help me. I need the users have the real product amount if others make an invoice....
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Hi
I designed a class named X
I want serialize my defined objects.
but i gave this message:
Type 'X' in Assembly 'X, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.
How can i mark a class as Serializeable?!!
tnx for your help
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As the exception says the assembly isn't marked as serializable so all you need is to mark it as serializable using attribute. If you need more control implement ISerializable interface.
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How can I mark it as Serializeable??!!!!!
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They hide the information here[^]
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Giorgi Dalakishvili wrote: They hide the information here[^]
They don't really hide it, he just can't use google.
modified 12-Sep-18 21:01pm.
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The dirty rotten scoundrels - Imagine hiding that kind of information in the product documentation. What kind of cynical things will they do next!
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Hi all!
I’m using a WebBrowser control in my program. I initialize it with:
using System.Windows.Forms;
_WB = new WebBrowser();
_WB.Navigate("about:blank");
Then I load an HTML document into it with:
_WB.Document.OpenNew(false);
_WB.Document.Write(HtmlString);
When I check the href of a relative link on a system with IE6 it returns as “about:blank/dir/somepage.htm”, on IE7 it returns as “about:/dir/somepage.htm”.
Right now I’m using
link = link.Replace("about:blank","site").Replace("about:","site");
Is there some way to poll the WebBrowser to see what its using (either “about:blank” or “about:”, or maybe something else completely…)
Thanks!
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Hello to all,
I want to conferm that Is it possible to create a 16 bit application in .Net. I need 16 dll or application because I want to create a dll for 16 bit application.
Please help me how to solve this problem.
thanks
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I dont know the answer.
But if you go in to the history of VB you might find about how to call 32-bit application from 16-Bit application. This way you can create a .Net app and call it form your 16 bit app.
C isn't that hard: void (*(*f[])())() defines f as an array of unspecified size, of pointers to functions that return pointers to functions that return void
"Always program as if the person who will be maintaining your program is a violent psychopath that knows where you live." - Martin Golding
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Why do you need to do this ?
Christian Graus
Driven to the arms of OSX by Vista.
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No, you can't. If you want to create a 16-bit application you need to have Visual C++ 1.5, or earlier.
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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Spoilsport.
Christian Graus
Driven to the arms of OSX by Vista.
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I'm sorry, I didn't know you were having a bit of sport. 
"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001
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I need to drag a item from a list box and drop it to another list box. Is it possible?????? If it possible please give me some code or URL to do this
Dushan Perera
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Dushan123 wrote: Is it possible?
Yes
Dushan123 wrote: If it possible please give me some code or URL to do this
No. Use google.
C isn't that hard: void (*(*f[])())() defines f as an array of unspecified size, of pointers to functions that return pointers to functions that return void
"Always program as if the person who will be maintaining your program is a violent psychopath that knows where you live." - Martin Golding
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