在CommonClass.cs文件上引发错误错误：当前上下文中不存在 [英] Error raising on CommonClass.cs file Error: doesnt exist in current context

问题描述

<pre lang="cs">
<strong>CommonClass.cs</strong> Error raising on this page
Error: The name 'gvwBoarding' doesnot exist in current context.

<strong>BusRouterHeader.aspx.cs</strong>
gvwBoarding is a Gridview id in BusRouterHeader.aspx.cs page


protected void btnSave_Click(object sender, EventArgs e)
       {
           string re = &quot;Given Field is Empty&quot;;
           if (ddlBusTravelsName.SelectedIndex.ToString() != &quot;0&quot; &amp;&amp; txtAmount.Text != &quot;&quot; &amp;&amp; txtFromCity.Text != &quot;&quot; &amp;&amp; txtToCity.Text != &quot;&quot; &amp;&amp; txtDepartureTime.Text != &quot;&quot; &amp;&amp; txtArrivelTime.Text != &quot;&quot;)
           {
               DoFill();
               string res = CC.DoInsertBusRHeader(B);
               ClientScript.RegisterStartupScript(this.GetType(), &quot;myalert&quot;, &quot;alert('&quot; + res + &quot;');&quot;, true);
               Clear();
               <strong>CC.DoGdviewBoarding(); //I will call this method...... </strong>

           }
           else
           {
               ClientScript.RegisterStartupScript(this.GetType(), &quot;myalert&quot;, &quot;alert('&quot; + re + &quot;');&quot;, true);
           }
       }

<strong>CommonClass.cs</strong>
public void DoGdviewBoarding()
        {
            SqlCommand cmd;
            try
            {
                SqlDataAdapter sda;
                DataSet ds;
                mDbconnection = conn.GetDefaultDbConnectionString();
                cmd = new SqlCommand("[DBO].[Proc_GetBoarding]", mDbconnection);
                cmd.CommandType = CommandType.StoredProcedure;
                sda = new SqlDataAdapter(cmd);
                ds = new DataSet();
                sda.Fill(ds, "BusRouterHeaderMaster");
                gvwBoarding.DataSource = ds;
                gvwBoarding.DataBind();
                mDbconnection.Close();
            }
            catch (Exception e)
            {

            }
            finally
            {
                if (cmd != null)
                    cmd.Dispose();
                cmd = null;
                mDbconnection.Close();
            }
        }


</pre>

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推荐答案

嘿，



如果您准备更改代码，将 DoGdviewBoarding（）修改为返回数据表的内容。

Hey,

If you are ready to change your code, modify your DoGdviewBoarding() to something like this which returns a data table.

public DataTable DoGdviewBoarding()
{
//line of codes
}

并在您的代码中使用

and in your code use

gvwBoarding.DataSource = DoGdviewBoarding();

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