Gridview操作

Question

請幫我一個人，我有一個gridview在asp.net（C＃代碼）有兩列命名爲'類型'，另一個'保存'。'類型'列一些數據就像定性和定性如果數據在「類型」列中定量，則同一行中的「保存」列中的對應單元應該是DropdownList，如果它是定性的，那麼相同行中的對應單元即「保存」將是文本框。

由於提前

Answer 1

在列「保存」，創建一個模板字段，並把兩個文本框，下拉列表，然後將各行的數據綁定，你運行一個函數來檢查你有什麼類型的數據類型列和隱藏（該行）在保存列不需要的元素：

這裏的代碼可能是什麼樣子：

protected void myGridView_RowDataBound(object sender, GridViewRowEventArgs e) 
{ 
    if (e.Row.RowType == DataControlRowType.DataRow) 
    { 
     bool isQuantitative = ((CheckBox)e.Row.FindControl("cb1")).Checked; 

     if (isQuantitative) 
     { 
      ((textBox)e.Row.FindControl("myTextboxID")).Visible = true; 
      ((DropDownList)e.Row.FindControl("myDdlistID")).Visible = false; 
     } 
     else 
     { 
      ((textBox)e.Row.FindControl("myTextboxID")).Visible = false; 
      ((DropDownList)e.Row.FindControl("myDdlistID")).Visible = true; 
     } 
    } 
} 

在本例中使用上述檢查定量/定性控制數據是一個複選框，將其替換無線你的控制或邏輯。

然後到GridView鏈接到這個方法，這個屬性添加到GridView聲明：

OnRowDataBound="myGridView_RowDataBound" 

Answer 2

我一直在尋找你的程序的數據源的答覆。無論如何，我已經爲你創建了演示。這是你完整的答案。

這裏就是你的頁面：

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" 
    CodeBehind="Default.aspx.cs" Inherits="EnableAndDisableControlsGridviewWebApp._Default" %> 

<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"> 
</asp:Content> 
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"> 
    <h2> 
     Welcome to ASP.NET! 
    </h2> 
    <div> 
     <asp:GridView ID="GridView1" AutoGenerateColumns="false" 
         runat="server" onrowdatabound="GridView1_RowDataBound"> 
      <RowStyle BackColor="#EFF3FB" /> 
      <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> 
      <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" /> 
      <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> 
      <AlternatingRowStyle BackColor="White" /> 
      <Columns> 
       <asp:TemplateField HeaderText="Id" Visible="false"> 
        <ItemTemplate> 
         <asp:Label ID="lblId" Style="width: 100px;" runat="server" 
          Text='<%# Eval("Id")%>' Visible="false"></asp:Label> 
        </ItemTemplate> 
        <EditItemTemplate> 
         <asp:Label ID="lblId" Style="width: 100px;" runat="server" 
          Text='<%# Eval("Id")%>' Visible="false"></asp:Label> 
        </EditItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Type"> 
        <ItemTemplate> 
         <asp:Label ID="lblCustomType" Style="width: 100px;" runat="server" 
          Text='<%# Eval("CustomType")%>'></asp:Label> 
        </ItemTemplate> 
        <EditItemTemplate> 
          <asp:Label ID="lblCustomType" Style="width: 100px;" runat="server" 
          Text='<%# Eval("CustomType")%>'></asp:Label> 
        </EditItemTemplate> 
       </asp:TemplateField> 
       <asp:TemplateField HeaderText="Details"> 
        <ItemTemplate> 
         <asp:TextBox ID="txtSave" Style="width: 100px;" runat="server"></asp:TextBox> 
         <asp:DropDownList ID="DrpSave" Style="width: 100px;" runat="server"></asp:DropDownList> 
        </ItemTemplate> 
        <EditItemTemplate> 
         <asp:TextBox ID="txtSave" Style="width: 100px;" runat="server"></asp:TextBox> 
         <asp:DropDownList ID="DrpSave" Style="width: 100px;" runat="server"></asp:DropDownList> 
        </EditItemTemplate> 
       </asp:TemplateField> 
      </Columns> 
     </asp:GridView> 
    </div> 
</asp:Content> 

和背後的代碼會是這樣的：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 

using System.Data; 

namespace EnableAndDisableControlsGridviewWebApp 
{ 
    public partial class _Default : System.Web.UI.Page 
    { 
     DataTable aTable = new DataTable(); 
     protected void Page_Load(object sender, EventArgs e) 
     { 
      BindData(); 
     } 

     private void BindData() 
     { 
      aTable.Columns.Add("Id", typeof(int)); 
      aTable.Columns.Add("CustomType", typeof(string)); 
      aTable.Columns.Add("CustomSave", typeof(string)); 
      DataRow dr1 = aTable.NewRow(); 
      dr1["Id"] = 1; 
      dr1["CustomType"] = "qualitative randomly"; 
      dr1["CustomSave"] = "DropdownList"; 
      aTable.Rows.Add(dr1); 
      DataRow dr2 = aTable.NewRow(); 
      dr2["Id"] = 2; 
      dr2["CustomType"] = "quantitative"; 
      dr2["CustomSave"] = "TextBox"; 
      aTable.Rows.Add(dr2); 
      DataRow dr3 = aTable.NewRow(); 
      dr3["Id"] = 3; 
      dr3["CustomType"] = "qualitative randomly"; 
      dr3["CustomSave"] = "DropdownList"; 
      aTable.Rows.Add(dr3); 
      DataRow dr4 = aTable.NewRow(); 
      dr4["Id"] = 4; 
      dr4["CustomType"] = "quantitative"; 
      dr4["CustomSave"] = "TextBox"; 
      aTable.Rows.Add(dr4); 
      GridView1.DataSource = aTable; 
      GridView1.DataBind(); 
     } 

     protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) 
     { 
      if (e.Row.RowType == DataControlRowType.DataRow) 
      { 
       Label lblIdentifier = (Label)e.Row.FindControl("lblCustomType"); 
       string val = lblIdentifier.Text; 

       if (val == "quantitative") 
       { 
        ((TextBox)e.Row.FindControl("txtSave")).Visible = true; 
        ((DropDownList)e.Row.FindControl("DrpSave")).Visible = false; 
       } 
       else 
       { 
        ((TextBox)e.Row.FindControl("txtSave")).Visible = false; 
        ((DropDownList)e.Row.FindControl("DrpSave")).Visible = true; 
       } 
      } 
     } 
    }   
}