C# 如何使用存储过程提交asp.net页面进行搜索

我有一个ASP.net（

www.mypage.com/search.aspx

）页面，其中有一些dropdownlist（通过代码隐藏填充）、提交按钮和转发器控件：

<asp:Label runat="server" ID="lblCount"></asp:Label>
<asp:DropDownList ClientIDMode="Static" ID="ddlProvider" CssClass="setProvDDStyle" runat="server" AppendDataBoundItems="true"></asp:DropDownList>
<asp:DropDownList ClientIDMode="Static" ID="ddlSpecialty" CssClass="chosen-select setProvDDStyle" runat="server" AppendDataBoundItems="true"></asp:DropDownList>
<asp:DropDownList ClientIDMode="Static" ID="ddlLocation" CssClass="chosen-select setProvDDStyle" runat="server" AppendDataBoundItems="true"></asp:DropDownList>

<asp:Button ID="btnSubmit" runat="server" Text="Search" />

<~- was using the below button to handle the search
<asp:LinkButton ID="lbSearch" ClientIDMode="Static" CssClass="defaultLinks" runat="server" OnClick="lbSearch_Click">Search</asp:LinkButton> -->

<asp:Repeater runat="server" ID="rptSearchResult" ClientIDMode="Static">
    <HeaderTemplate>
        <div style="padding-left: 5%; overflow: hidden; width: 95%;">
            <div style="float: left; width: 20%; overflow: hidden; text-align: center;">
                <img src="<%# Eval("Image").ToString() %>" />
            </div>
            <div style="float: left; width: 78%; overflow: hidden; text-align: left; vertical-align: top;">
                <span><asp:Label ID="lblName" runat="server" ClientIDMode="Static"><%# Eval("Physician Name").ToString() %></asp:Label></span>
                <hr />
                Specialty: <asp:Label id="lblSpec1" runat="server"><%# Eval("Specialty1").ToString() %></asp:Label>, 
            </div>
        </div>
    </HeaderTemplate>
</asp:Repeater>

如何在不提交页面中的其他按钮的情况下实现以下目标：

    //rptSearchResult datasource = result from the above store procedure query
    //lblCount.Text = rptSearchResult.Items.Count

我还希望页面的URL在显示结果后具有查询字符串：

---

示例：

www.mypage.com/search.aspx？name=any provider&speciality=any speciality&location=any location

I您可以将点击btnSearch的任何人重定向到当前页面，并使用一些查询字符串。然后在页面加载中调用搜索函数，读取查询字符串并绑定搜索结果。我希望你明白我的意思

string cString;
SqlConnection Conn;
string sqlCode = "";
string strGender = "";
int rowCount = 0;
string strProv, strSpec, strLoca, strGend, strInsu, strLang;

protected void Page_Load(object sender, EventArgs e)
{
    cString = ""; //my connection string
    if (!Page.IsPostBack)
    {
        PopulatePhysician();
        PopulateLocation();
        PopulateSpecialty();
        PopulateInsurance();
        PopulateLanguage();

        Search();
    }
}

public void lbSearch_Click(object sender, EventArgs e)
{
    Response.Redirect(String.Format("~/search.aspx?name={0}&specialty={1}&location={2}", ddlProvider.SelectedItem.Text, ddlSpecialty.SelectedItem.Text, ddlLocation.SelectedItem.Text));
}

public void Search()
{
    Conn = new SqlConnection(cString);
    Conn.Open();

    strGender = Request.QueryString["Gender"];

    if (Request.QueryString["Provider"] == "Any Provider")
    {
        strProv = "%";
    }
    else
    {
        strProv = Request.QueryString["Provider"];
    }
    if (Request.QueryString["Specialty"] == "Any Specialty")
    {
        strSpec = "%";
    }
    else
    {
        strSpec = Request.QueryString["Specialty"];
    }
    if (Request.QueryString["Location"] == "Any Location")
    {
        strLoca = "%";
    }
    else
    {
        strLoca = Request.QueryString["Location"];
    }
    if (Request.QueryString["Gender"] == "Any Gender")
    {
        strGend = "%";
    }
    else
    {
        strGend = Request.QueryString["Gender"];
    }
    if (Request.QueryString["Insurance"] == "Any Insurance")
    {
        strInsu = "%";
    }
    else
    {
        strInsu = Request.QueryString["Insurance"];
    }
    if (Request.QueryString["Language"] == "Any Language")
    {
        strLang = "%";
    }
    else
    {
        strLang = Request.QueryString["Language"];
    }

    using (SqlConnection scCon = new SqlConnection(cString))
    {
        using (SqlCommand scCmd = new SqlCommand("searchPhysician", scCon))
        {
            scCmd.CommandType = CommandType.StoredProcedure;

            scCmd.Parameters.Add("@strProvider", SqlDbType.VarChar).Value = strProv;
            scCmd.Parameters.Add("@strSpecialty", SqlDbType.VarChar).Value = strSpec;
            scCmd.Parameters.Add("@strLocation", SqlDbType.VarChar).Value = strLoca;
            scCmd.Parameters.Add("@strGender", SqlDbType.VarChar).Value = strGend;
            scCmd.Parameters.Add("@strInsurance", SqlDbType.VarChar).Value = strInsu;
            scCmd.Parameters.Add("@strLanguage", SqlDbType.VarChar).Value = strLang;

            scCon.Open();
            scCmd.ExecuteNonQuery();

            //rptSearchResult datasource = result from the above store procedure query
            //lblCount.Text = rptSearchResult.Items.Count
        }
    }
}

---

你需要做两件事

像这样为

asp:Button

添加

OnClick

处理程序

重命名

public void lbSearch\u Click（对象发送者，事件参数e）

为

protected void btnSubmit\u Click（对象发送者，事件参数e）

---

先前的

lbSearch\u Click

事件绑定到

linkbutton

，我建议将其重命名为建议的，以便在单击提交按钮时，为

linkbutton

执行的代码块现在将为

Search

按钮单击执行。

谢谢。我会尝试一下。如果是第一次加载，我不想调用

Search（）

：有一件事，URL会更改，但DropDownList会将我不想要的所有内容都设置回默认值。另外，只有在单击页面中的搜索时，我才想调用

SEARCH（）

。第一次：您应该检查querystring，如果没有，那么不要调用SEARCH。对于set DropDownLists，您也应该检查页面加载中的查询字符串，并决定根据查询字符串数据选择一个选项，这样做可以吗<代码>如果（Request.QueryString[“provider”！=”）

string cString;
SqlConnection Conn;
string sqlCode = "";
string strGender = "";
int rowCount = 0;
string strProv, strSpec, strLoca, strGend, strInsu, strLang;

protected void Page_Load(object sender, EventArgs e)
{
    cString = ""; //my connection string
    if (!Page.IsPostBack)
    {
        PopulatePhysician();
        PopulateLocation();
        PopulateSpecialty();
        PopulateInsurance();
        PopulateLanguage();

        Search();
    }
}

public void lbSearch_Click(object sender, EventArgs e)
{
    Response.Redirect(String.Format("~/search.aspx?name={0}&specialty={1}&location={2}", ddlProvider.SelectedItem.Text, ddlSpecialty.SelectedItem.Text, ddlLocation.SelectedItem.Text));
}

public void Search()
{
    Conn = new SqlConnection(cString);
    Conn.Open();

    strGender = Request.QueryString["Gender"];

    if (Request.QueryString["Provider"] == "Any Provider")
    {
        strProv = "%";
    }
    else
    {
        strProv = Request.QueryString["Provider"];
    }
    if (Request.QueryString["Specialty"] == "Any Specialty")
    {
        strSpec = "%";
    }
    else
    {
        strSpec = Request.QueryString["Specialty"];
    }
    if (Request.QueryString["Location"] == "Any Location")
    {
        strLoca = "%";
    }
    else
    {
        strLoca = Request.QueryString["Location"];
    }
    if (Request.QueryString["Gender"] == "Any Gender")
    {
        strGend = "%";
    }
    else
    {
        strGend = Request.QueryString["Gender"];
    }
    if (Request.QueryString["Insurance"] == "Any Insurance")
    {
        strInsu = "%";
    }
    else
    {
        strInsu = Request.QueryString["Insurance"];
    }
    if (Request.QueryString["Language"] == "Any Language")
    {
        strLang = "%";
    }
    else
    {
        strLang = Request.QueryString["Language"];
    }

    using (SqlConnection scCon = new SqlConnection(cString))
    {
        using (SqlCommand scCmd = new SqlCommand("searchPhysician", scCon))
        {
            scCmd.CommandType = CommandType.StoredProcedure;

            scCmd.Parameters.Add("@strProvider", SqlDbType.VarChar).Value = strProv;
            scCmd.Parameters.Add("@strSpecialty", SqlDbType.VarChar).Value = strSpec;
            scCmd.Parameters.Add("@strLocation", SqlDbType.VarChar).Value = strLoca;
            scCmd.Parameters.Add("@strGender", SqlDbType.VarChar).Value = strGend;
            scCmd.Parameters.Add("@strInsurance", SqlDbType.VarChar).Value = strInsu;
            scCmd.Parameters.Add("@strLanguage", SqlDbType.VarChar).Value = strLang;

            scCon.Open();
            scCmd.ExecuteNonQuery();

            //rptSearchResult datasource = result from the above store procedure query
            //lblCount.Text = rptSearchResult.Items.Count
        }
    }
}