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ASP.NET―001:GridView綁定List、頁面返回值具體實現

編輯：ASP.NET基礎

用慣了WPF的綁定，ASP.NET的綁定貌似不是很好用。下面看看ASP.NET綁定的用法。一般來說可以直接綁定DataTable的，不過我覺得綁定List比較符合面向對象編程。
綁定的方法是兩句代碼：
復制代碼代碼如下:
GridView名.DataSource = List<自定義類>;

GridView名.DataBind();

直接看例子吧，以下是一個綁定一個PersonModel類的例子。其中用到了頁面返回參數，使用js傳遞，js可寫在前端也可直接寫在後台代碼裡。
項目結構：

效果：

實體類
復制代碼代碼如下:
public class PersonModel
{
private int personIndex;

        public int PersonIndex
        {
            get { return personIndex; }

set { personIndex = value; }
}

private string personID;

        public string PersonID
        {
            get { return personID; }

set { personID = value; }
}

private string personName;

        public string PersonName
        {
            get { return personName; }

set { personName = value; }
}

private string personSex;

        public string PersonSex
        {
            get { return personSex; }

set { personSex = value; }
}

private int personAge;

        public int PersonAge
        {
            get { return personAge; }

set { personAge = value; }
}

private bool personSelected = false;

        public bool PersonSelected
        {
            get { return personSelected; }

            set { personSelected = value; }
        }
    }

針對綁定的aspx頁面寫一個管理類，用於操作數據
復制代碼代碼如下:
public class ChildFrmManager
{
private List<PersonModel> personCollect = new List<PersonModel>();

private static ChildFrmManager instance = null;

        public List<PersonModel> PersonCollect
        {
            get { return personCollect; }

set { personCollect = value; }
}

        public static ChildFrmManager DoGetInstance()
        {
            if (instance == null)
            {
                instance = new ChildFrmManager();
            }

return instance;
}

        public void DoAddPersons()
        {
            for (int i = 0; i < 20; i++)
            {
                PersonModel model = new PersonModel();

model.PersonIndex = i + 1;

model.PersonID = System.Guid.NewGuid().ToString();

model.PersonName = "測試" + i;

model.PersonAge = 27 + i;

model.PersonSex = i % 2 == 0 ? "男" : "女";

model.PersonSelected = false;

                this.PersonCollect.Add(model);
            }
        }
    }

綁定的頁面前端
復制代碼代碼如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ChildFrm.aspx.cs" Inherits="ASPNetGridView.Pages.ChildFrm" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

綁定頁面後台
復制代碼代碼如下:
public partial class ChildFrm : System.Web.UI.Page
{
private ChildFrmManager dManager = null;

protected PersonModel selectItem = null;

        protected void Page_Load(object sender, EventArgs e)
        {
            dManager = ChildFrmManager.DoGetInstance();

            if (!IsPostBack)
            {
                dManager.DoAddPersons();

this.dgPersons.DataSource = dManager.PersonCollect;

                this.dgPersons.DataBind();
            }
        }

        protected void Selcted_Click(object sender, EventArgs e)
        {
            int selectIndex = this.dgPersons.SelectedIndex;

            foreach (PersonModel mitem in dManager.PersonCollect)
            {
                if (mitem.PersonIndex - 1 == selectIndex)
                {
                    mitem.PersonSelected = true;
                }
                else
                {
                    mitem.PersonSelected = false;
                }
            }

selectItem = dManager.PersonCollect[selectIndex];

string vbCrLf = " ";

string strScript = "<script>" + vbCrLf;

strScript += "window.parent.returnValue='" + selectItem.PersonName + "';" + vbCrLf;

strScript += "window.parent.close();" + vbCrLf;

strScript += "</script>" + vbCrLf;

            if (!IsClientScriptBlockRegistered("clientScript"))
            {
                RegisterClientScriptBlock("clientScript", strScript);
            }
        }
    }

承載綁定頁面的頁面
復制代碼代碼如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="FrameFrm.aspx.cs" Inherits="ASPNetGridView.Pages.FrameFrm" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

主頁面，獲取返回值的js在前端
復制代碼代碼如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ASPNetGridView._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

                  <td>
                  <asp:TextBox ID="txtShowReturnValue" runat="server" Width="100px" />
                  </td>
                  <td>
                  <asp:Button ID="btnOpenNewFrm" runat="server" Text="選擇" Width="60px" OnClientClick="OpenNewWindow()"/>
                  </td>
              </tr>
            </table>
        </form>
    </div>
</body>
<script type ='text/javascript'>
    function OpenNewWindow() {

var str = window.showModalDialog('Pages/FrameFrm.aspx', document.Form1.txtShowReturnValue.value, 'dialogWidth=1000px;dialogHeight=900px', 'scroll:yes');

        if (str != null)
        { document.Form1.txtShowReturnValue.value = str; }
    }
</script>
</html>

代碼下載