ASP.Net的GridView重新綁定不上的按鈕，點擊數據

Question

我在asp.net新我使用LINQ與按鈕單擊事件asp.net我的GridView重新綁定沒有數據是GridView控件到UpdatePanel的

「> 「>

protected void btnSave_Click(object sender, EventArgs e) 
{ 
    foreach (GridViewRow gvr in gvClientData.Rows) 
    { 

     if (((CheckBox)gvr.FindControl("chkdisplay")).Checked == true) 
     { 
      string Index = ((Label)gvr.FindControl("lblIndex")).Text; 
      int GIIndex = Convert.ToInt32(Index); 
      GI_InsureMaster insertclientinfo = vjdb.GI_InsureMasters.Single(upd => upd.GIMastIndex == GIIndex); 
      insertclientinfo.SendToCompany = true; 
      vjdb.SubmitChanges(); 
     } 

    } 
    BindAgencyData(); 
    Response.Redirect(Request.RawUrl); 
} 

Answer 1

似乎您試圖修改一個對象，然後將其保存回數據庫，但是你做錯了。

您正在查詢來自不同數據上下文的對象，vjdb，並且您在linqobject上調用SubmitChanges。您應該vjdb

protected void btnSave_Click(object sender, EventArgs e) 
{ 
    foreach (GridViewRow gvr in gvClientData.Rows) 
    { 

     if (((CheckBox)gvr.FindControl("chkdisplay")).Checked == true) 
     { 
      string Index = ((Label)gvr.FindControl("lblIndex")).Text; 
      int GIIndex = Convert.ToInt32(Index); 
      GI_InsureMaster insertclientinfo = vjdb.GI_InsureMasters.Single(upd => upd.GIMastIndex == GIIndex); 
      insertclientinfo.SendToCompany = true; 
      vjdb.SubmitChanges(); //HERE 
     } 

    } 
    BindAgencyData(); 
    Response.Redirect(Request.RawUrl); 
} 

調用SubmitChanges假設BindAgencyData被查詢最新的/更新的記錄數據庫，然後將數據綁定到網格。