C# 如何阻止每次单击按钮时重新加载页面？

下面是当我在搜索某个内容后单击我的gridview时发生的情况，然后我的下一个命令是从gridview获取数据到文本框，以编辑文件并再次保存，但select命令没有按应有的方式工作。。因为gridview正在重新加载，而我筛选的文件已经消失，它将选择gridview中的第一行，我该怎么办？这是我的select命令代码

void getValue()
{
    // GridView1.SelectedIndex = isa;
    //gridview1Connection();

    GridViewRow row = GridView1.SelectedRow;
    T_firstname.Text = (row.FindControl("lbl_Firstname") as Label).Text;
    T_middlename.Text = (row.FindControl("lbl_Middlename") as Label).Text;
    T_lastname.Text = (row.FindControl("lbl_Lastname") as Label).Text;
    T_age.Text = (row.FindControl("lbl_Age") as Label).Text;
    T_id.Text = (row.FindControl("lbl_ID") as Label).Text;
    string gender = (row.FindControl("lbl_Sex") as Label).Text;

    if (gender == "FEMALE")
    {
        female_b.Checked = true;
        male_b.Checked = false;
    }
    else
    {
        male_b.Checked = true;
        female_b.Checked = false;
    }
}

我应该使用IsPostBack还是viewstate？我将如何设置它或编写代码

这是我的gridview代码

<asp:GridView ID="GridView1" runat="server" BackColor="White" BorderColor="#3366CC" 
    BorderStyle="None" BorderWidth="1px" CellPadding="4" AutoGenerateColumns="False" 
    onselectedindexchanged="GridView1_SelectedIndexChanged" Width="581px" 
    onrowcommand="GridView1_RowCommand"
    onselectedindexchanging="GridView1_SelectedIndexChanging" 
    AutoGenerateSelectButton="True">
    <Columns>
        <%--<asp:TemplateField ShowHeader="False">
            <ItemTemplate>
                <asp:LinkButton ID="Select_button" CommandArgument ='<%# Eval("ID") %>' CommandName="SelectRow" ForeColor="#8C4510" runat="server">Select</asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>--%>

       <%-- <asp:CommandField ShowSelectButton="True"></asp:CommandField>--%>
        <asp:TemplateField HeaderText="Firstname" SortExpression="Firstname">
            <EditItemTemplate>
                <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Firstname") %>'></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:Label ID="lbl_Firstname" runat="server" Text='<%# Bind("Firstname") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Middlename" SortExpression="Middlename">
            <EditItemTemplate>
                <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Middlename") %>'></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:Label ID="lbl_Middlename" runat="server" Text='<%# Bind("Middlename") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Lastname" SortExpression="Lastname">
            <EditItemTemplate>
                <asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("Lastname") %>'></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:Label ID="lbl_Lastname" runat="server" Text='<%# Bind("Lastname") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Age" SortExpression="Age">
            <EditItemTemplate>
                <asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("Age") %>'></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:Label ID="lbl_Age" runat="server" Text='<%# Bind("Age") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Sex" SortExpression="Sex">
            <EditItemTemplate>
                <asp:TextBox ID="TextBox5" runat="server" Text='<%# Bind("Sex") %>'></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:Label ID="lbl_Sex" runat="server" Text='<%# Bind("Sex") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="ID" SortExpression="ID">
            <EditItemTemplate>
                <asp:TextBox ID="TextBox6" runat="server" Text='<%# Bind("ID") %>'></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:Label ID="lbl_ID" runat="server" Text='<%# Bind("ID") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>

    <FooterStyle BackColor="#99CCCC" ForeColor="#003399" />
    <HeaderStyle BackColor="#003399" Font-Bold="True" ForeColor="#CCCCFF" />
    <PagerStyle BackColor="#99CCCC" ForeColor="#003399" HorizontalAlign="Left" />
    <RowStyle BackColor="White" ForeColor="#003399" />
    <SelectedRowStyle BackColor="#009999" Font-Bold="True" ForeColor="#CCFF99" />
    <SortedAscendingCellStyle BackColor="#EDF6F6" />
    <SortedAscendingHeaderStyle BackColor="#0D4AC4" />
    <SortedDescendingCellStyle BackColor="#D6DFDF" />
    <SortedDescendingHeaderStyle BackColor="#002876" />

</asp:GridView>

挑选
--%>

您需要将就地可更新控件包装到AJAX

UpdatePanel

中

---

这意味着在更新这些特定控件时，您的页面将不会重新加载。

您需要删除SelectedIndexChanged=“GridView1\u SelectedIndexChanged”或SelectedIndexChanged=“GridView1\u SelectedIndexChanged”上的一个网格命令