Hi all....

Im using ajax for the first time. plz help me out tin this scenario:

I have gridview in the update panel. A link button is placed in a template feild of the gridview which adds new row on click.

Prob is tht when i fill out the txtboxes and checkboxes of the first row and click the new row button....a new row appears but the previous row data is refereshed and all values disappear.

I want tht when i click new row ...a new row is added and the previous row data stays in the textboxes of that row.

i also want to save the previous row data somewhere(some data structure...) when clicking for new row.

plz help me !!

thisi s the code im using...

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

</div>

<asp:UpdatePanel ID="Grid_UpdatePanel" runat="server">

<ContentTemplate>

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnPreRender="GridView1_PreRender"

BackColor="White" BorderColor="#DEDFDE" BorderStyle="None" BorderWidth="1px"

CellPadding="4" ForeColor="Black" GridLines="Vertical">

<Columns>

<asp:TemplateField ShowHeader="False">

<ItemTemplate>

<asp:LinkButton ID="add_row_LinkButton" runat="server" CausesValidation="False" CommandName="Insert"

OnClick="add_row_LinkButton_Click">New</asp:LinkButton>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Name">

<ItemTemplate>

<asp:TextBox ID="col_nameTextBox" runat="server" BackColor="White"></asp:TextBox>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Abbreviation">

<ItemTemplate>

<asp:TextBox ID="col_abbrvTextBox" runat="server" BackColor="White"></asp:TextBox>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Type">

<ItemTemplate>

<asp:DropDownList ID="col_type_dd" runat="server" AutoPostBack="True" OnSelectedIndexChanged="col_type_dd_SelectedIndexChanged" BackColor="White">

<asp:ListItem>Please Select..</asp:ListItem>

<asp:ListItem>bit</asp:ListItem>

<asp:ListItem>date</asp:ListItem>

<asp:ListItem>decimal</asp:ListItem>

<asp:ListItem>integer</asp:ListItem>

<asp:ListItem>string</asp:ListItem>

</asp:DropDownList>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</ContentTemplate>

</asp:UpdatePanel>

hey S_a_r_a_h,

Please look at this thread, could this be the cause?: http://forums.asp.net/t/1185745.aspx

It is the DataBinding that makes the values disappear.

If that is not the case, could you provide me with a better, easier to implement code example?
You gave code, but no code-behind etc. (Think yourself as a programmer who never saw the code before .... try to copy and paste this code into a new project, Does it work from the 1st time? I GUESS NOT!!!!)

Kind regards,
Wim
 

Thanks for the reply.

 Here you go......

protected void GridView1_PreRender(object sender, EventArgs e) //for adding new button only once

protected void RowInsert()//for columns grid

dt.Columns.Add("Name");

dt.Columns.Add("Type");

dt.Columns.Add("Null?");

TextBox txt = new TextBox();

txt.Enabled = true;

txt.Text = "";

 first of all  add Previous rows in a data table  like as

for (int indexInt = 0; indexInt < dgContacts.Items.Count; indexInt++)
        {
            if (indexInt < count)
            {
                dtContacts.Rows[indexInt]["First"] = ((TextBox)(dgContacts.Items[indexInt].Cells[0].Controls[1])).Text;
                dtContacts.Rows[indexInt]["Last"] = ((TextBox)(dgContacts.Items[indexInt].Cells[1].Controls[1])).Text;
                dtContacts.Rows[indexInt]["Title"] = ((TextBox)(dgContacts.Items[indexInt].Cells[2].Controls[1])).Text;
                dtContacts.Rows[indexInt]["Email"] = ((TextBox)(dgContacts.Items[indexInt].Cells[3].Controls[1])).Text;
                dtContacts.Rows[indexInt]["Phone"] = ((TextBox)(dgContacts.Items[indexInt].Cells[4].Controls[1])).Text;
                dtContacts.Rows[indexInt]["Mobile"] = ((TextBox)(dgContacts.Items[indexInt].Cells[5].Controls[1])).Text;
                dtContacts.Rows[indexInt]["contact"] = ((CheckBox)(dgContacts.Items[indexInt].Cells[6].Controls[1])).Checked;
            }
        }

then add new row if there is any data in text boxes and bind grid from that table on click of that new button