GridView 中模板列莫名其妙消失
问题描述:Gridvie控件有一个固定的模板列,其它列都是动态添加的,包括ButtonField列.当我加载数据的时候,一切正常,但是当点击GridView中翻页后,模板列消失了,模板列的表头还在,就是内容消失了.其它列都没有问题.
代码如下:
<asp:GridView ID="GvSelectResult" PageSize="20" runat="server" AllowPaging="True" Width="1500"
  BackColor="White" BorderColor="#A6CBEF" BorderStyle="Solid" BorderWidth="1px" 
  OnPageIndexChanging="GvSelectResult_PageIndexChanging" AutoGenerateColumns="False" OnRowCommand="GvSelectResult_RowCommand" OnRowDataBound="GvSelectResult_RowDataBound" OnRowCreated="GvSelectResult_RowCreated">
  <Columns>
  <asp:TemplateField HeaderText="&lt;input id='Checkbox1' type='checkbox' onclick='selectAll(this)' /&gt;" >
  <ItemTemplate>
  <asp:CheckBox ID="CheckBox1" runat="server" />
  </ItemTemplate>
  </asp:TemplateField>
  </Columns>
  </asp:GridView>

  public void addButtonField(string headText, string text, string cmdName)
  {
  ButtonField bf = new ButtonField();
  bf.HeaderText = headText;
  bf.Text = text;
  bf.CommandName = cmdName;
  GvSelectResult.Columns.Insert(0,bf);
  }
  public void addHyperLinkField(string headText, string text,
  string[] DataNavigateUrlFields, string DataNavigateUrlFormatString, string Target)
  {
  HyperLinkField hlf = new HyperLinkField();
  hlf.HeaderText = headText;
  hlf.Text = text;
  hlf.Target = Target;
  hlf.DataNavigateUrlFields = DataNavigateUrlFields;
  hlf.DataNavigateUrlFormatString = DataNavigateUrlFormatString;
  GvSelectResult.Columns.Insert(0,hlf);
  }
protected void Page_Init(object sender, EventArgs e)
  {
  DataSet reportKey, GvDataSet;
  reportKey = new DataSet();
  GvDataSet = new DataSet();
  if (!String.IsNullOrEmpty(bbid))
  {
  reportKey = DbOperateClass.DbOperate.GetDataSet("select tablename,zdm,zwhy from zdybb where bbid='" 
  + bbid + "' and yxbz='1' order by zdxssx");
  string tableName;
  DataTableReader dtr = new DataTableReader(reportKey.Tables[0]);
  DataTableReader dtr1 = new DataTableReader(reportKey.Tables[0]);
  DataTableReader dtr2 = new DataTableReader(reportKey.Tables[0]);
  StringBuilder sb = new StringBuilder("select ");
  try
  {
  dtr1.Read();
  tableName = dtr1.GetString(0);
  while (dtr.Read())
  {
  sb.Append(dtr.GetString(1));
  sb.Append(",");
  }
  }
  finally
  {
  dtr1.Close();
  dtr.Close();
  }
  sb.Length = sb.Length - 1;
  sb.Append(" from ");
  sb.Append(tableName);
  ViewState["selectSql"] = sb.ToString();//保存查询命令
  GvDataSet = DbOperateClass.DbOperate.GetDataSet(sb