2012-05-04 20 views
0

我有1箇中繼器和綁定subjectid和主旨名稱Assign_Subjects表...並把1文本框模板中插入每個科目@btnInsert_Click事件,我已經寫了我插入如下代碼獲得商標及它工作正常...和結果表中,我要與主體沿插入標記......如何在直放站控制中動態使用更新功能?

我想更新即插入標記(在文本框 - MarksObtained列)中繼器控制範圍之內.. .i使用按鈕作爲btnUpdate編輯文本框....

的.aspx頁面

<div> 
<table border="0" width="600px" cellpadding="2" cellspacing="1" style="border: 1px solid maroon;"> 
      <asp:Repeater ID="Repeater1" runat="server"> 
       <HeaderTemplate> 
        <tr bgcolor="maroon"> 
         <th> 
          Subject_Id 
         </th> 
         <th> 
          Subject_Name 
         </th> 
         <th> 
          Fill_Marks 
         </th> 
        </tr> 
       </HeaderTemplate> 
       <ItemTemplate> 
        <tr> 
         <td width="100"> 
          <asp:TextBox ID="txtSubjectId" runat="Server" Text='<%#Eval("Subject_Id")%>'></asp:TextBox> 
         </td> 
         <td> 
          <asp:TextBox ID="txtSubjectName" runat="Server" Text='<%#Eval("Subject_Name")%>'></asp:TextBox> 
         </td> 
         <td> 
          <asp:TextBox ID="txtMarks" runat="server" ></asp:TextBox> 
         </td> 
        </tr> 
       </ItemTemplate> 
      </asp:Repeater> 
     </table> 
     <asp:Button ID="btnInsert" runat="server" OnClick="btnInsert_Click" Text="Insert" /> 
     **<asp:Button ID="btnUpdate" runat="server" OnClick="btnUpdate_Click" Text="Insert" />** 
    </div> 

後面的代碼 - C#

protected void btnInsert_Click(object sender, EventArgs e) 
    { 
     foreach (RepeaterItem repeaterItem in Repeater1.Items) 
     { 
      string subjectId = (repeaterItem.FindControl("txtSubjectId") as TextBox).Text.Trim(); 
      string subjectName = (repeaterItem.FindControl("txtSubjectName") as TextBox).Text.Trim(); 
      string marks = (repeaterItem.FindControl("txtMarks") as TextBox).Text.Trim(); 

      this.SaveData(subjectId, subjectName, marks); 
     } 
    } 

private void SaveData(string subjectId, string subjectName, string marks) 
     { 
      cn = new SqlConnection(ConfigurationManager.ConnectionStrings["DbConnect"].ConnectionString); 
      cn.Open(); 

      SqlCommand cmd = new SqlCommand("Insert into result(id,name,marks) values('"+subjectId+"','"+subjectName+"','"+marks+"')", cn); 

      Repeater1.DataSource = cmd.ExecuteReader(); 

      //Display a popup which indicates that the record was successfully inserted 

      Page.ClientScript.RegisterClientScriptBlock(typeof(Page), "Script", "alert('Successfuly Inserted. !!');", true); 

      cn.Close(); 
      cmd.Connection.Close(); 
      cmd.Connection.Dispose(); 
     } 

插入結果

id  varchar(20) 
name varchar(20) 
marks varchar(20) 

現在的問題是我怎樣才能通過中繼器更新?更appriciated代碼解釋...感謝

+0

首先,您應該使用參數來構建您的SqlCommand,否則您會打開SQL注入攻擊。其次 - 你得到的確切錯誤是什麼? –

+0

我很困惑你想完成什麼。你有一箇中繼器,我假設你用數據填充。然後,當你點擊Insert時,它會遍歷中繼器中的每個項目,並對數據庫執行INSERT操作?我認爲相反,你可能意味着將文本框放在中繼器的下方,以將新項目添加到列表中? –

+0

凱文主 - 我更新了我的問題...你可以看到它... – mack28

回答

0

內中繼您的按鈕應該是這樣的.....

<td> 
    <asp:ImageButton ID="btnSave" runat="server" 
     ImageUrl="~/images/save.png" ToolTip="click to save record" 
     CommandName="SaveData" 
     OnClientClick="return confirm('Conform message before saving')" /> 
</td> 

然後捕獲由中繼控制使用Repeater的ItemCommand事件

生成的事件
protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e) 
{ 
    // note that this is the command we assign to save button. 
    // we use it here to capture which button was clicked. 
    if (e.CommandName == "SaveData") 
    { 
     TextBox txtFirstName = e.Item.FindControl("txtFirstName") as TextBox; 
     string fname= txtFirstName.Text; 

     // do somethig with your date here.. 

    } 
} 
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