请教：datagrid中的按钮列隐藏？

ButtonColumn.Visible=false
<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
 
<html>
   <script runat="server">
 
      ICollection CreateDataSource() 
      {
      
         // Create sample data for the DataGrid control.
         DataTable dt = new DataTable();
         DataRow dr;
 
         // Define the columns of the table.
         dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
         dt.Columns.Add(new DataColumn("StringValue", typeof(string)));
         dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double)));
 
         // Populate the table with sample values.
         for (int i = 0; i < 5; i++) 
         {
            dr = dt.NewRow();
 
            dr[0] = i;
            dr[1] = "Item " + i.ToString();
            dr[2] = 1.23 * (i + 1);
 
            dt.Rows.Add(dr);
         }
 
         DataView dv = new DataView(dt);
         return dv;
      }
 
      void Page_Load(Object sender, EventArgs e) 
      {
 
         // Load sample data only once, when the page is first loaded.
         if (!IsPostBack) 
         {
            ItemsGrid.DataSource = CreateDataSource();
            ItemsGrid.DataBind();
         }      }      void Button_Click(Object sender, EventArgs e) 
      {         // Count the number of selected items in the DataGrid control.
         int count = 0;         // Display the selected times.
         Message.Text = "You Selected: <br>";         // Iterate through each item (row) in the DataGrid control and
         // determine whether it is selected.
         foreach (DataGridItem item in ItemsGrid.Items)
         {            DetermineSelection(item, ref count);                 }         // If no items are selected, display the appropriate message.
         if (count == 0)
         {            Message.Text = "No items selected";         }      }      void DetermineSelection(DataGridItem item, ref int count)
      {         // Retrieve the SelectCheckBox CheckBox control from the 
         // specified item (row) in the DataGrid control.
         CheckBox selection = (CheckBox)item.FindControl("SelectCheckBox");         // If the item is selected, display the appropriate message and
         // increment the count of selected items.
         if (selection != null)
         {           if (selection.Checked)
           {
              Message.Text += "- " + item.Cells[1].Text + "<br>";
              count++;
           }         }          }      void Check_Change(Object sender, EventArgs e)
      {         // Show or hide the first column depending on the value of
         // the check box.
         if (ShowCheckBox.Checked)
         {
            ItemsGrid.Columns[0].Visible = true;
         }
         else
         {
            ItemsGrid.Columns[0].Visible = false;
         }      }   </script>
 
<body>
 
   <form runat=server>
 
      <h3>DataGridColumn Visible Example</h3>      Select whether to show or hide the first column.      <br><br>
 
      <b>Product List</b>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           ShowFooter="True"
           AutoGenerateColumns="False"
           runat="server">         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>         <FooterStyle BackColor="#00aaaa">
         </FooterStyle>         <Columns>            <asp:BoundColumn DataField="IntegerValue"
                 Visible="True" 
                 HeaderText="Item"/>            <asp:BoundColumn DataField="StringValue"
                 Visible="True"  
                 HeaderText="Description"/>            <asp:BoundColumn DataField="CurrencyValue"
                 Visible="True"  
                 HeaderText="Price"
                 DataFormatString="{0:c}">               <ItemStyle HorizontalAlign="Right">
               </ItemStyle>            </asp:BoundColumn>            <asp:TemplateColumn HeaderText="Select Item"
                 Visible="True" >               <ItemTemplate>                  <asp:CheckBox id="SelectCheckBox"
                       Text="Add to Cart"
                       Checked="False"
                       runat="server"/>               </ItemTemplate>            </asp:TemplateColumn>
 
         </Columns>  
 
      </asp:DataGrid>      <br><br>      <asp:Button id="SubmitButton"
           Text="Submit"
           OnClick = "Button_Click"
           runat="server"/>      <br><br>      <asp:Label id="Message"
           runat="server"/>      <hr>      <asp:CheckBox id="ShowCheckBox"
           Text="Show first column"
           AutoPostBack="True"
           OnCheckedChanged="Check_Change"
           Checked="True"
           runat="server"/>
 
   </form>
 
</body>
</html>

解决方案 »

  1.   

    <%@ Page Language="VB" %>
    <%@ Import Namespace="System.Data" %>
    <%@ Import Namespace="System.Data.OleDb" %>
    <html>
    <script runat="server">
    Public dim MyName,HisName as string
    Sub Page_Load(Sender As Object, E As EventArgs)
        MyName="admin"
    HisName="nhonline"
    Dim  MyConnection as OleDbConnection = New OleDbConnection( "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=c:\inetpub\wwwroot\nhonline\datagrid\kk.mdb") Dim myCommand As OleDbCommand = new OleDbCommand("Select * From board", myConnection)

    Dim myDataReader As OleDbDataReader Try
       myConnection.Open()    'myDataReader = myCommand.ExecuteReader(CommandBehavior.CloseConnection)
       myDataReader = myCommand.ExecuteReader
       myDataGrid.DataSource = myDataReader
       myDataGrid.DataBind()
    Catch myException As Exception
       Response.Write("An error has occurred: " & myException.ToString())
    Finally
       If Not myDataReader Is Nothing Then
           myDataReader.Close()
       End If
    End Try
    End SubSub HideShow_Click(Sender As Object, E As EventArgs)
    If myDataGrid.Columns(0).Visible = False Then
    myDataGrid.Columns(0).Visible = True
    Else
    myDataGrid.Columns(0).Visible = False
    End If
    End Sub
    </script>
    <body>
    <form runat="server">
    <asp:Button id="HideShow" Text="Hide/Show" OnClick="HideShow_Click" runat="server" />&nbsp;&nbsp;<A HREF="datagrid_hidecolumn_2.aspx?name=<%=Myname%>">MyName=admin(Can Hidden)</A>&nbsp;&nbsp;<A HREF="datagrid_hidecolumn_2.aspx?name=<%=Hisname%>">HisName=nhonline</A><BR><hr color=red>
    <asp:DataGrid id="myDataGrid" Width="25%" AutoGenerateColumns="false" runat="server">
    <Columns>
    <asp:TemplateColumn HeaderText="Board_ID">
      <ItemTemplate>
          <span><%# Container.DataItem("boardid") %></span>
      </ItemTemplate>
    </asp:TemplateColumn>
    <asp:TemplateColumn HeaderText="boardtype">
      <ItemTemplate>
          <span><%# Container.DataItem("boardtype") %></span>
      </ItemTemplate>
    </asp:TemplateColumn>
    <asp:TemplateColumn HeaderText="class">
      <ItemTemplate>
          <span><%# Container.DataItem("class") %></span>
      </ItemTemplate>
    </asp:TemplateColumn>
    <asp:TemplateColumn HeaderText="readme">
      <ItemTemplate>
          <span><%# Container.DataItem("readme") %></span>
      </ItemTemplate>
    </asp:TemplateColumn>
    <asp:TemplateColumn HeaderText="boardmaster">
      <ItemTemplate>
          <span><%# Container.DataItem("boardmaster") %></span>
      </ItemTemplate>
    </asp:TemplateColumn>
    </Columns>
    </asp:DataGrid>
    </form>
    </body>
    </html>
      

  2.   

    加一条语句即可
    this.DataGrid1.Columns["列名或列序号"].Visible=false;