C# 语法错误：System.Data.SqlClient.SqlException:在'='；

我收到此服务器错误，无法找出问题所在：

描述：在执行过程中发生未处理的异常 当前的web请求。请查看堆栈跟踪以了解更多信息 有关错误的信息及其在代码中的来源

异常详细信息：System.Data.SqlClient.SqlException:不正确 “=”附近的语法

我的代码在这里：

 public partial class v2_kradescription : System.Web.UI.Page
{
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ToString());

protected void Page_Load(object sender, EventArgs e)
{
        try
        {
        // icnoA for appraisee icno


        string role = "";

        string kr_icno = (string)(Session["s_icno"]);
        string kr_position = (string)(Session["kr_position"]);
        string kr_description = (string)(Session["kr_description"]);

        Session["role"] = role;

        if (role == "KRA")
        {
            kr_icno = (string)(Session["s_icno"]);
            kr_position = (string)(Session["kr_position"]);
            kr_description = (string)(Session["kr_description"]);
        }
            conn.Open();
            SqlDataSource1.SelectCommand = "SELECT kr_id, kr_position, kr_description FROM tblKRAObjectiveWHERE kr_icno = " + s_icno; 
            conn.Close();
        }

    catch (Exception ex)
    {
        lblMsg.Text = ex.Message; //" Error while saving the record.";  
    }
    //conn.Open();
    //string icno = (string)(Session["s_icno"]);
    //SqlDataSource1.SelectCommand = "SELECT kr_id, kr_position, kr_description FROM tblKRAObjective WHERE kr_icno = " + icno;

    //conn.Close();

   }

 protected void  GridView1_OnRowDataBound(object sender, GridViewRowEventArgs e)
 {
    string kr_id = Request.QueryString["kr_id"];

    string id = "";

    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        id = GridView1.DataKeys[e.Row.RowIndex].Values[0].ToString();
    }
    Label lblposition = (Label)e.Row.FindControl("lblposition");
    Label lbldescription = (Label)e.Row.FindControl("lbldescription");

    if(e.Row.DataItem != null)
    {
        conn.Open();

        String queryA = "SELECT kr_id, kr_position, kr_description FROM tblKRAObjective  WHERE kr_icno = " + s_icno;
        SqlCommand cmdA = new SqlCommand(queryA, conn);
        SqlDataReader drA = cmdA.ExecuteReader();

        if (drA.Read())
        {
            lblposition.Text = drA["kr_position"].ToString();
            lbldescription.Text = drA["kr_description"].ToString();
        }
        drA.Close();
    }
}

 protected void GridView1_OnRowEdited(object sender, GridViewEditEventArgs e)
{
    GridView1.EditIndex = e.NewEditIndex;
}

     protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
    GridView1.Focus();
}

protected void GridView1_OnRowUpdated(object sender, GridViewUpdateEventArgs e)
{
   Response.Redirect("kra_description.aspx?Sucess");
}

protected void OnPaging(object sender, GridViewPageEventArgs e)
{
    GridView1.PageIndex = e.NewPageIndex;
}

protected void btnPreview_Click(object sender, EventArgs e)
{
            Response.Redirect("kra_pdf.aspx");
}

protected void btnSubmit_Click(object sender, EventArgs e)
{
    if (Page.IsValid)
    {

        string kricno = (string)(Session["s_icno"]);
        string krid = (string)(Session["kr_id"]);
        string krdescription = (string)(Session["kr_description"]);
        string krposition = (string)(Session["kr_position"]); ;

        try
        {

            // get requester name, companyid, primary appraiser of requester

            String queryA = "SELECT kr_id, kr_description, kr_position FROM tblKRAObjective WHERE s_icno = '"+kricno;
            SqlCommand cmdA = new SqlCommand(queryA);
            SqlDataReader drA = cmdA.ExecuteReader();

            if (drA.Read())
            {
                krid = drA["kr_id"].ToString();
                kricno = drA["kr_icno"].ToString();
                krdescription = drA["kr_description"].ToString();
                krposition = drA["kr_position"].ToString();
            }
            drA.Close();

            SqlCommand cmd1 = new SqlCommand();
            cmd1.CommandType = CommandType.StoredProcedure;

            cmd1.Parameters.Add("@kr_id", SqlDbType.NVarChar).Value = krid.ToString();
            cmd1.Parameters.Add("@kr_descpription", SqlDbType.NVarChar).Value = krdescription.ToString();
            cmd1.Parameters.Add("@kr_position", SqlDbType.NVarChar).Value = krposition.ToString();
            cmd1.Parameters.Add("@kr_icno", SqlDbType.NVarChar).Value = kricno.ToString();

            cmd1.ExecuteNonQuery();


             }
                catch (Exception ex)
        {
            lblMsg.Text = ex.Message; //" Error while saving the record.";  
        }
        Response.Redirect("kra_dashboard.aspx");
    }
}


protected void btnAddNew_Click(object sender, EventArgs e)
{

}
}

---

在这一行中，表名和

Where

SqlDataSource1.SelectCommand = "SELECT kr_id, kr_position, kr_description FROM tblKRAObjectiveWHERE kr_icno = " + s_icno;

试试这个：

"SELECT kr_id, kr_position, kr_description FROM tblKRAObjective WHERE kr_icno = '" + s_icno + "'";

---

为了避免在此行中使用

，表名和

之间缺少一个空格，其中

SqlDataSource1.SelectCommand = "SELECT kr_id, kr_position, kr_description FROM tblKRAObjectiveWHERE kr_icno = " + s_icno;

试试这个：

"SELECT kr_id, kr_position, kr_description FROM tblKRAObjective WHERE kr_icno = '" + s_icno + "'";

---

为了避免使用

请在Where之前留出空间，并在参数中添加单引号，因为它是字符串

试试下面

"SELECT kr_id, kr_position, kr_description FROM tblKRAObjective WHERE kr_icno = '" + s_icno + "'";

---

请在Where之前留出空间，并在参数中添加单引号，因为它是字符串

试试下面

"SELECT kr_id, kr_position, kr_description FROM tblKRAObjective WHERE kr_icno = '" + s_icno + "'";

---

---

首先想到的是：

s\u icno

为null或空。真的吗？您需要我们的帮助才能发现您已经同时运行了表名和

WHERE

关键字？不要在查询中串联字符串！改用

SqlParameter

s.LOL，@Damien\u不信者是对的！：-D在“tblKRAObjective”和“WHERE”之间添加一个空格：-P“我不知道问题出在哪里”-这是因为您捕获异常并只打印消息。首先想到的是：

s_icno

为null或空。真的吗？您需要我们的帮助才能发现您已经同时运行了表名和

WHERE

关键字？不要在查询中串联字符串！改用

SqlParameter

s.LOL，@Damien\u不信者是对的！：-D在“tblKRAObjective”和“WHERE”之间添加一个空格：-P“我不知道问题在哪里”-这是因为您捕获了异常并只打印消息。不要鼓励取消SQL查询@PawełDyl-我不知道。有时候一个人只需要足够的耐心，直到编辑完成。多谢。我已经解决了这个问题。但现在我遇到另一个错误-->无法绑定多部分标识符“System.Web.UI.WebControls.HiddenField”。这是一个与您的sql错误无关的问题。请尝试并调试它，在线阅读有关该错误的信息，如果经过所有研究，如果它仍然发生，您可以发布另一个错误question@fadilla“atyka总是设置断点并在出现错误时调试代码。不要鼓励取消SQL查询@PawełDyl-我不知道。有时候一个人只需要足够的耐心，直到编辑完成。多谢。我已经解决了这个问题。但现在我遇到另一个错误-->无法绑定多部分标识符“System.Web.UI.WebControls.HiddenField”。这是一个与您的sql错误无关的问题。请尝试并调试它，在线阅读有关该错误的信息，如果经过所有研究，如果它仍然发生，您可以发布另一个错误question@fadilla“atyka总是设置断点，并在出现错误时调试代码。