返回gridview边界值。 [英] Retrive gridview boundfield value.

问题描述

在gridview中，我设置了boundfield属性visible =false。当我从gridview中检索值时，然后

grdItemDescriptionLoad.Rows [i] .Cells [1] .Text.Trim（））;得到。如果我设置visible = true则grdItemDescriptionLoad.Rows [i] .Cells [1] .Text.Trim（））;获得价值。

但我必须隐藏这个字段。你能解释一下为什么visible =false属性会影响获取值。请帮助我。

  if （grdItemDescriptionLoad.Rows.Count >   0 ）
 {
  for （ int  i =  0 ; i <  grdItemDescriptionLoad。 Rows.Count; i ++）
 {
 CheckBox chkb =（CheckBox）grdItemDescriptionLoad.Rows [i] .FindControl（  chkSelect）; 
  if （chkb.Checked ==  true ）
 {
 SqlCommand cmd3 =  new  SqlCommand（  Smt_Mc_Repair_Details_Record_Save，cn）; 
  if （cn.State == ConnectionState.Closed）
 {
 cn.Open（）; 
} 
 cmd3.CommandType = CommandType.StoredProcedure; 
 cmd3.Parameters.AddWithValue（  @ SMcID，hdAction.Value）; 
 cmd3.Parameters.AddWithValue（  @ SAssetNo，ddlAssetNo.SelectedValue）; 
 cmd3.Parameters.AddWithValue（  @ SSevID，grdItemDescriptionLoad.Rows [i]。单元格[ 1 ]。Text.Trim（））; 
 cmd3.Parameters.AddWithValue（  @ SevNo，grdItemDescriptionLoad.Rows [i]。单元格[ 2 ]。Text.Trim（））; 
 cmd3.Parameters.AddWithValue（  @ SMcRepairDtl，grdItemDescriptionLoad.Rows [i]。单元格[ 3 ]。Text.Trim（））; 
 
 cmd3.ExecuteNonQuery（）; 
 
} 
} 
} 
 

这是我的gridview

 <   asp：GridView     ID   =  grdItemDescriptionLoad      runat   =  server  
              < row   style     cssclass   =  grdRow    /  >  
 < ;   HeaderStyle     CssClass  < span class =code-keyword> =  gridheader    /  >  
 <  列 >  
 <   asp：TemplateField     HeaderText   = 检查 >  
 <   itemtemplate  >  
 <   asp：CheckBox     ID   =  chkSelect   宽度  =  25px    runat   =  server    AutoPostBack   =  True  
                           oncheckedchanged   =  chkSelect_CheckedChanged    /  >  
 <   / itemtemplate  >  
 
 <   asp：BoundField     DataField   =  SevID    HeaderText   =  SevID    SortExpression   =  SevID    /  >  
 <   asp：BoundField     DataField   =  SevNo    HeaderText   = 服务号    SortExpression   =  SevNo    /  >  
 <   asp ：BoundField     DataField   =  SevType    HeaderText   = 服务描述    SortExpression   =  SevType    /  >  
 < ;   / columns  >  
 

解决方案

使用css类隐藏字段而不是设置visible = false。



例如：

 <   style     type   =  text / css >  
。隐藏 
 {
  display  ：  none;  
} 
 < /  < span class =code-leadattribute> style  >  
 
 <   asp：boundfield     datafield   =  SevID    headertext   =  SevID    sortexpression   =  SevID >  
 <   item   style     cssclass   =  hidden    /  >  
 <   / asp：boundfield  >  

In gridview I set a boundfield property visible="false". when I retrieve value from gridview then
grdItemDescriptionLoad.Rows[i].Cells[1].Text.Trim()); gets "". If I set visible=true then grdItemDescriptionLoad.Rows[i].Cells[1].Text.Trim()); gets value.
But I have to hide this field. Can you explain me why visible="false" property affects to get the value. Please help me.

if (grdItemDescriptionLoad.Rows.Count > 0)
           {
               for (int i = 0; i < grdItemDescriptionLoad.Rows.Count; i++)
               {
                   CheckBox chkb = (CheckBox)grdItemDescriptionLoad.Rows[i].FindControl("chkSelect");
                   if (chkb.Checked == true)
                   {
                       SqlCommand cmd3 = new SqlCommand("Smt_Mc_Repair_Details_Record_Save", cn);
                       if (cn.State == ConnectionState.Closed)
                       {
                           cn.Open();
                       }
                       cmd3.CommandType = CommandType.StoredProcedure;
                       cmd3.Parameters.AddWithValue("@SMcID", hdAction.Value);
                       cmd3.Parameters.AddWithValue("@SAssetNo", ddlAssetNo.SelectedValue);
                       cmd3.Parameters.AddWithValue("@SSevID", grdItemDescriptionLoad.Rows[i].Cells[1].Text.Trim());
                       cmd3.Parameters.AddWithValue("@SevNo", grdItemDescriptionLoad.Rows[i].Cells[2].Text.Trim());
                       cmd3.Parameters.AddWithValue("@SMcRepairDtl", grdItemDescriptionLoad.Rows[i].Cells[3].Text.Trim());

                       cmd3.ExecuteNonQuery();

                   }
               }
           }

Here is my gridview

<asp:GridView ID="grdItemDescriptionLoad"  runat="server"
      <rowstyle cssclass="grdRow" />
     <HeaderStyle CssClass="gridheader" />
    <columns>
    <asp:TemplateField HeaderText="Check">
    <itemtemplate>
        <asp:CheckBox ID="chkSelect" Width="25px" runat="server" AutoPostBack="True"
            oncheckedchanged="chkSelect_CheckedChanged" />
    </itemtemplate>

     <asp:BoundField DataField="SevID" HeaderText="SevID" SortExpression="SevID" />
     <asp:BoundField DataField="SevNo" HeaderText="Service No" SortExpression="SevNo" />
     <asp:BoundField DataField="SevType" HeaderText="Service Description" SortExpression="SevType" />
    </columns>

解决方案

Use css class to hide the field instead of setting visible=false.

For example:

<style type="text/css">
     .hidden
     {
         display:none;
     }
</style>

<asp:boundfield datafield="SevID" headertext="SevID" sortexpression="SevID">
<itemstyle cssclass="hidden" />
</asp:boundfield>

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