asp：gridview文本框的旧值是回传的

Question

<asp:GridView Width="300px" RowStyle-Height="20px" HeaderStyle-Height="25px" DataKeyNames="Id"  ID="bankAccounts_List" CssClass="table" runat="server" AutoGenerateColumns="false" >
<Columns>
<asp:TemplateField HeaderText="Sorting Handle" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" >
<ItemTemplate>
<span class="handle"><img src="../Images/sortingHandler.jpg" height="10" /></span>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Account Number">                                              
<ItemTemplate>
<asp:TextBox ID="grd_txtbankAccountNumber" Width="150" onblur="return OnBlurGridTextbox(this);" BorderStyle="None" BackColor="White" style="text-align:left;" runat="server" Text='<%# Eval("AccountNo") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Priority" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" >
<ItemTemplate>
<asp:TextBox ID="grd_txtPriority" Width="100" BorderStyle="None" BackColor="White" runat="server" style="text-align:center"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" >
<ItemTemplate>
<asp:LinkButton runat="server" ID="grd_linkbutton" OnClientClick="return EditGridButton(this)">Edit</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Id" >
<HeaderStyle CssClass="hiddencol" />
<ItemStyle CssClass="hiddencol" />
<ItemTemplate>
<asp:Label ID="grd_lblId" runat="server" Text='<%# Bind("Id") %>'></asp:Label>
</ItemTemplate> 
</asp:TemplateField>
</Columns>                                       
</asp:GridView>  

<asp:Button ID="btnSaveBankInformation" runat="server" Text="<%$Resources:Strings,save%>"
            OnClick="btnSaveBankInformation_Click" />

protected void btnSaveBankInformation_Click(object sender, EventArgs e)
{
TextBox txtBankAccountNumber = bankAccounts_List.Rows[i].Cells[GetColumnIndexByName(bankAccounts_List.Rows[i], "Account Number")].FindControl("grd_txtbankAccountNumber") as TextBox;
}

无论在任何文本框中进行任何更改，在“保存”按钮上，我总是会得到旧的绑定文本框值，而不是我刚刚输入的新值。 请帮助我。 是的，我没有使用!IsPostBack重新绑定GridView在PostBack上

Answer 1

if (!IsPostBack) //Bind grid only when IsPostBack is false
{
    grd.DataSource = //data source ;
    grd.DataBind(); // bind data 
}