後點擊搜索 - 選擇價值被複位，不存儲

Question

我不知道如何對點擊後保存選擇的參數「搜索」實現邏輯

有aspx文件：

<form class="search_css" runat="server"> 
    <div class="search_div_search_box"> 
     <table class="filter_component_css"> 
       <tr> 
        <td>miap</td> 
        <td><asp:TextBox CssClass="search_format" ID="miap_textbox" runat="server"></asp:TextBox></td> 
       </tr> 
       <tr> 
        <td>purchase order</td> 
        <td><asp:TextBox CssClass="search_format" ID="po_textbox" runat="server"></asp:TextBox></td> 
       </tr> 
       <tr> 
        <td>material desc</td> 
        <td><asp:TextBox CssClass="search_format" ID="material_desc_textbox" runat="server"></asp:TextBox></td> 
       </tr> 
       <tr> 
        <td>supplier</td> 
        <td><asp:TextBox CssClass="search_format" ID="supplier_textbox" runat="server"></asp:TextBox></td> 
       </tr> 
       <tr> 
        <td>manufacturer</td> 
        <td><asp:TextBox CssClass="search_format" ID="manufacturer_textbox" runat="server"></asp:TextBox></td> 
       </tr> 
       <tr> 
        <td>spare parts</td> 
        <td><asp:CheckBox CssClass="search_format" ID="parts_checkbox" runat="server" OnCheckedChanged="spareParts_Checked" ViewStateMode="Enabled"/></td> 
       </tr> 
       <tr> 
        <td>first fills</td> 
        <td><asp:CheckBox CssClass="search_format" ID="fills_checkbox" runat="server" OnCheckedChanged="firstFills_Checked" ViewStateMode="Enabled"/></td> 
       </tr> 
       <tr><td>special tools</td>    
        <td><asp:Checkbox CssClass="search_format" ID="tools_checkbox" runat="server" OnCheckedChanged="specialTools_Checked" ViewStateMode="Enabled"/> 
        </td> 
       </tr> 
       <tr> 
        <td colspan="2"> 
         <asp:Button ID="buttonReset" CssClass="filter_component_css_3" runat="server" Text="Reset" OnClick="submitResetClick"/> 
         <asp:Button ID="buttonSearch" CssClass="filter_component_css_3" runat="server" Text="Search" OnClick="submitSearchClick"/> 
        </td> 
       </tr> 
     </table> 
    </div> 
</form> 

C＃類：

<script runat="server"> 
    //spare parts variable 
    int sp_id=0; 

    //first fills variable 
    int ff_id=0; 

    //special tools variable 
    int st_id=0; 


    void spareParts_Checked(Object sender, EventArgs e) 
    { 
     if (parts_checkbox.Checked) 
     { 
      sp_id = 1; 
     } 
    } 

    void firstFills_Checked(Object sender, EventArgs e) 
    { 
     if (fills_checkbox.Checked) 
     { 
      ff_id = 1; 
     } 
    } 

    void specialTools_Checked(Object sender, EventArgs e) 
    { 
     if (tools_checkbox.Checked) 
     { 
      st_id = 1; 
     } 
    } 


    protected void submitSearchClick(object sender, EventArgs e) 
    { 
     ViewState.Add("flag", true); 
     ViewState.Add("sp_id", sp_id); 
     ViewState.Add("ff_id", ff_id); 
     ViewState.Add("st_id", st_id); 

     GridViewS.DataSource = SqlDataSource_Search; 

     Response.Write("miap like '%" + miap_textbox.Text + "%' and pocode like '%" + po_textbox.Text + "%' and materialdescription like '%" + material_desc_textbox.Text + "%' and suppliername like '%" + supplier_textbox.Text + "%' and manufacturername like '%" + manufacturer_textbox.Text 
           + "%' and spareparts =" + sp_id + " and firstfills=" + ff_id + " and specialtools =" + st_id + ""); 


     SqlDataSource_Search.FilterExpression = "miap like '%" + miap_textbox.Text + "%' and pocode like '%" + po_textbox.Text + "%' and materialdescription like '%" + material_desc_textbox.Text + "%' and suppliername like '%" + supplier_textbox.Text + "%' and manufacturername like '%" + manufacturer_textbox.Text 
           + "%' and spareparts =" +sp_id+ " and firstfills=" +ff_id+ " and specialtools =" + st_id + ""; 

     GridViewS.DataBind(); 

    } 
</script> 

eg 如果我檢查3的複選框 - 備件，第一罷了，專用工具 - 點擊「搜索」> 響應寫結果： ...及其附件= 1和firstfills = 1和specialtools = 1

如果後我取消第一隻填充 - 點擊 '搜索'> ...及其附件= 0和firstfills = 0和specialtools = 0

結果，我需要： ...及其附件= 1和firstfills = 0和specialtools = 1

Answer 1

改爲使用CheckBoxList併爲此調整它requiement：

ASPX

<asp:CheckBoxList ID="chklBidType" runat="server"> 
<asp:ListItem Text="spare parts" Value="1" /> 
<asp:ListItem Text="first fills" Value="2" /> 
<asp:ListItem Text="special tools" Value="3" /> 
</asp:CheckBoxList> 

CS

protected void Button1_Click(object sender, EventArgs e) 
{ 
string strBidType = ""; 
foreach(ListItem cBox in chklBidType.Items) 
{ 
    if(cBox.Selected) 
    { 
    strBidType += cBox.Value + "/"; 
    } 
} 
Response.Write(strBidType); 
}