如何自動生成的GridView

Question

獲得頭名如何在自動生成的GridView在Button點擊event.header列獲得頭名不能same..all時間..

所以根據列標題我們必須進一步處理。請幫忙找到列標題。

我們通過下面的代碼找到的rowIndex

var rowIndex = ((GridViewRow)((Control)sender).NamingContainer).RowIndex; 

這樣。那麼如何在GridView內點擊鏈接按鈕時找到GridView的列索引？

'

string dt1 = txtFromDate.Text; 
    string d1, d5 = "", d3 = "", d4 = "", date, d6, service_Date; 
    if (dt1 != "") 
    { 
     d1 = dt1; 
     if (d1.Contains(".")) 
     { 
      string[] word = d1.Split('.'); 
      d5 = word[0]; 
      d3 = word[1]; 
      d4 = word[2]; 
     } 
     else if (d1.Contains("-")) 
     { 
      string[] word = d1.Split('-'); 
      d5 = word[0]; 
      d3 = word[1]; 
      d4 = word[2]; 
     } 
     else if (d1.Contains("/")) 
     { 
      string[] word = d1.Split('/'); 
      d5 = word[0]; 
      d3 = word[1]; 
      d4 = word[2]; 
     } 

     date = d4 + "/" + d3 + "/" + d5; 
     service_Date = d5 + "-" + d3 + "-" + d4; 
    } 
    else 
    { 
     date = ""; 
     service_Date = ""; 
    } 

    string dt2 = txtToDate.Text; 
    string t1, t5 = "", t3 = "", t4 = "", d2, t6, serv; 
    if (dt1 != "") 
    { 
     t1 = dt2; 
     if (t1.Contains(".")) 
     { 
      string[] word = t1.Split('.'); 
      t5 = word[0]; 
      t3 = word[1]; 
      t4 = word[2]; 
     } 
     else if (t1.Contains("-")) 
     { 
      string[] word = t1.Split('-'); 
      t5 = word[0]; 
      t3 = word[1]; 
      t4 = word[2]; 
     } 
     else if (t1.Contains("/")) 
     { 
      string[] word = t1.Split('/'); 
      t5 = word[0]; 
      t3 = word[1]; 
      t4 = word[2]; 
     } 


     d2 = t4 + "/" + t3 + "/" + t5; 
     serv = t5 + "-" + t3 + "-" + t4; 
     //d5 = d3 + "/" + d6 + "/" + d4 ; 
    } 
    else 
    { 
     d2 = ""; 
     serv = ""; 
    } 
    dttest.Columns.Add("MACHINENAME_DATE"); 
    ArrayList Array_machine = new ArrayList(); 
    using (con = new SqlConnection(con_str)) 
    { 
     con.Open(); 
     string qry; 

     qry = "select distinct mname from tb_reqmach where fromdate>='" + date + "' and todate<='" + d2 + "' and mcfact='" + drpfact.Text + "' group by mname "; 
     cmd = new SqlCommand(qry, con); 
     dr = cmd.ExecuteReader(); 

     while (dr.Read()) 
     { 
      Array_machine.Add(dr["mname"].ToString().Trim()); 
      //dttest.Rows.Add(); 
      dttest.Rows.Add(dr["mname"].ToString().Trim()); 
     } 

     con.Close(); 
    } 

    ArrayList Array_L = new ArrayList(); 
    DateTime startDate = Convert.ToDateTime(date); 
    Array_L.Add(startDate.ToString("MM-dd-yyyy")); 
    dttest.Columns.Add(startDate.ToShortDateString()); 
    DateTime endDate = Convert.ToDateTime(d2); 
    while (startDate < endDate) 
    { 

     startDate = startDate.AddDays(1); 
     Array_L.Add(startDate.ToString("MM-dd-yyyy")); 
     dttest.Columns.Add(startDate.ToShortDateString()); 
    } 


    DataTable dt = new DataTable(); 
    int m = 0; 

    for (int j = 0; j < Array_L.Count; j++) 
    { 
     int avail = 0; 
     int planned = 0; 
     int req = 0; 

     for (int d = 0; d < Array_machine.Count; d++) 
     { 
      //dttest.Columns.Add(); 
      // dttest.Columns.Add(); 
      // xlworksheet.Cells[4 + d, 1] = Array_machine[d]; 
      // dttest.Rows.Add(); 
      string machine_name = Array_machine[d].ToString(); 
      string Date = Array_L[j].ToString(); 
      // xlworksheet.Cells[3, m + 2] = Date; 



      //DataColumn[] keyColumns = new DataColumn[1]; 
      //keyColumns[0] = dttest.Columns["MACHINENAME/DATE"]; 
      //dttest.PrimaryKey = keyColumns; 
      //if (dttest.Rows.Contains(machine_name)) 
      //{ 
      //} 
      //else 
      //{ 
      //dttest.Rows.Add(machine_name); 
      //} 
      // dttest.Rows[d][1] = Array_machine[d]; 

      // [xlworksheet].Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Red); 
      // xlworksheet.Range["A3", m + 2].Interior.Color = System.Drawing.ColorTranslator.FromHtml("#99CCFF"); 
      // dt.Columns.Add(machine_name); 
      using (con = new SqlConnection(con_str)) 
      { 

       con.Open(); 
       string qry1; 

       //qry = "select distinct mname from tb_reqmach where mcfact='" + drpfact.Text + "' group by mname "; 
       qry1 = "select count(mcdesp) as mcdesp from machine where mcdesp='" + Array_machine[d].ToString().Trim() + "' and mcfact='" + drpfact.Text + "' "; 
       cmd = new SqlCommand(qry1, con); 
       dr = cmd.ExecuteReader(); 
       if (dr.Read()) 
       { 
        // xlworksheet.Cells[dtcount + 1, m + 7] = dr["mcdesp"].ToString().Trim(); 
        avail = Convert.ToInt32(dr["mcdesp"].ToString().Trim()); 
       } 
       con.Close(); 
       con.Open(); 
       string qry; 

       qry = "SELECT sum(rmachine) as mname FROM tb_reqmach WHERE '" + Array_L[j].ToString() + "' BETWEEN fromdate AND todate and mname='" + Array_machine[d].ToString().Trim() + "' and mcfact='" + drpfact.Text + "'"; 
       cmd = new SqlCommand(qry, con); 
       dr = cmd.ExecuteReader(); 

       if (dr.Read()) 
       { 
        // dttest.Rows.Add(); 
        //xlworksheet.Columns[i].ColumnWidth = 18; 
        // xlworksheet.Cells[d + 4, 2 + m] = dr["mname"].ToString().Trim(); 
        dttest.Rows[d][j + 1] = dr["mname"].ToString().Trim(); 
        if (dr["mname"].ToString().Trim() != "") 
        { 
         planned = Convert.ToInt32(dr["mname"].ToString().Trim()); 
         req = avail - planned; 
         int rows = d + 4; 
         int cols = 2 + m; 
         // string rowA = FindResA(rows); 
         // string colB = FindResB(cols); 
         if (req < 0) 
         { 
          // xlworksheet.Range[colB + rows, colB + rows].Interior.Color = System.Drawing.ColorTranslator.FromHtml("#ff0000"); 
         } 
         else 
         { 
          // xlworksheet.Range[colB + rows, colB + rows].Interior.Color = System.Drawing.ColorTranslator.FromHtml("#008000"); 
         } 
        } 

        // dttest.Rows[d][m+1] = dr["mname"].ToString().Trim(); 
        // xlworksheet.Columns.AutoFit(); 
        // gvtest.HeaderRow.Cells(d).Text = dr["mname"].ToString().Trim(); 
        //dt.Rows.Add(); 
        // dt.Rows[d][machine_name] = dr["mname"].ToString().Trim(); 
       } 

       con.Close(); 

      } 

     } 
     m++; 
     // gvtest.DataSource = dt; 
     // gvtest.DataBind(); 
     //ID = (i + 1).ToString(); 
     // string machine_name = Array_machine[j].ToString(); 
     // xlworksheet.Cells[4 + i, 1] = ID; 
     // xlworksheet.Cells[4 + i, 2] = machine_name; 
     // xlworksheet.Cells[3, m + 2] = machine_name; 
     // 
    } 

    Session["dttest"] = dttest; 
    GridView4.DataSource = dttest; 
    GridView4.DataBind(); 






    for (int j = 0; j < Array_L.Count; j++) 
    { 
     int avail = 0; 
     int planned = 0; 
     int req = 0; 

     for (int d = 0; d < Array_machine.Count; d++) 
     { 
      //dttest.Columns.Add(); 
      // dttest.Columns.Add(); 
      // xlworksheet.Cells[4 + d, 1] = Array_machine[d]; 
      // dttest.Rows.Add(); 
      string machine_name = Array_machine[d].ToString(); 
      string Date = Array_L[j].ToString(); 
      // xlworksheet.Cells[3, m + 2] = Date; 



      //DataColumn[] keyColumns = new DataColumn[1]; 
      //keyColumns[0] = dttest.Columns["MACHINENAME/DATE"]; 
      //dttest.PrimaryKey = keyColumns; 
      //if (dttest.Rows.Contains(machine_name)) 
      //{ 
      //} 
      //else 
      //{ 
      //dttest.Rows.Add(machine_name); 
      //} 
      // dttest.Rows[d][1] = Array_machine[d]; 

      // [xlworksheet].Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Red); 
      // xlworksheet.Range["A3", m + 2].Interior.Color = System.Drawing.ColorTranslator.FromHtml("#99CCFF"); 
      // dt.Columns.Add(machine_name); 
      using (con = new SqlConnection(con_str)) 
      { 

       con.Open(); 
       string qry1; 

       //qry = "select distinct mname from tb_reqmach where mcfact='" + drpfact.Text + "' group by mname "; 
       qry1 = "select count(mcdesp) as mcdesp from machine where mcdesp='" + Array_machine[d].ToString().Trim() + "' and mcfact='" + drpfact.Text + "' "; 
       cmd = new SqlCommand(qry1, con); 
       dr = cmd.ExecuteReader(); 
       if (dr.Read()) 
       { 
        // xlworksheet.Cells[dtcount + 1, m + 7] = dr["mcdesp"].ToString().Trim(); 
        avail = Convert.ToInt32(dr["mcdesp"].ToString().Trim()); 
       } 
       con.Close(); 
       con.Open(); 
       string qry; 

       qry = "SELECT sum(rmachine) as mname FROM tb_reqmach WHERE '" + Array_L[j].ToString() + "' BETWEEN fromdate AND todate and mname='" + Array_machine[d].ToString().Trim() + "' and mcfact='" + drpfact.Text + "'"; 
       cmd = new SqlCommand(qry, con); 
       dr = cmd.ExecuteReader(); 

       if (dr.Read()) 
       { 
        // dttest.Rows.Add(); 
        //xlworksheet.Columns[i].ColumnWidth = 18; 
        // xlworksheet.Cells[d + 4, 2 + m] = dr["mname"].ToString().Trim(); 
        // dttest.Rows[d][j + 1] = dr["mname"].ToString().Trim(); 
        if (dr["mname"].ToString().Trim() != "") 
        { 
         planned = Convert.ToInt32(dr["mname"].ToString().Trim()); 
         req = avail - planned; 
         int rows = d + 4; 
         int cols = 2 + m; 
         // string rowA = FindResA(rows); 
         // string colB = FindResB(cols); 
         if (req < 0) 
         { 
          GridView4.Rows[d].Cells[j + 1].BackColor = Color.Red; 
         } 
         else 
         { 

         } 
        } 

       } 

       con.Close(); 

      } 

     } 
     m++; 

    } 


    foreach (GridViewRow gr in GridView4.Rows) 
    { 
     // LinkButton hp = new LinkButton(); 
     for (int k = 1; k < dttest.Columns.Count; k++) 
     { 
      LinkButton hp = new LinkButton(); 
      if (gr.Cells[k].Text != "") 
      { 
       hp.Text = gr.Cells[k].Text; 
       //defsur_Click(sender, e); 
       //GridViewRow gvr = e.Row; 
       //var rowIndex = ((GridViewRow)((Control)sender).NamingContainer).RowIndex; 
       //Label username = (Label)GridView3.Rows[rowIndex].FindControl("machinename"); 
       //mcname = username.Text; 
       // hp.Attributes.Add("onclick", "Gridview4_linkclick"); 
       hp.Click += new EventHandler(Gridview4_linkclick); 
       // hp.NavigateUrl = "~/Default.aspx?name=" + hp.Text; 
       gr.Cells[k].Controls.Add(hp); 
      } 
     } 

    } 
    GridView4.Columns[0].Visible = false;' 

Answer 1

您可以使用此片段。它循環單擊按鈕所在行中的所有單元格，並嘗試找到正確的列。

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) 
{ 
    //get the control that fired the method 
    Control control = e.CommandSource as Control; 

    //get the row containing the control 
    GridViewRow gvr = control.NamingContainer as GridViewRow; 

    //get the row number 
    int rowNumber = gvr.RowIndex; 

    //declare the column variable 
    int columnNumber = -1; 

    //loop all the columns in the gridview 
    for (int i = 0; i < GridView1.Columns.Count; i++) 
    { 
     //try to find the button that was clicked in each individual cell 
     Button button = GridView1.Rows[rowNumber].Cells[i].FindControl(control.ID) as Button; 

     //if the button is found set the column number 
     if (button != null) 
     { 
      columnNumber = i; 
     } 
    } 

    //get the column name 
    Label1.Text = GridView1.HeaderRow.Cells[columnNumber].Text; 
} 

GridView的例子

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="true" OnRowCommand="GridView1_RowCommand"> 
    <Columns> 
     <asp:TemplateField HeaderText="Header 1"> 
      <ItemTemplate> 
       <asp:Button ID="Button1" runat="server" Text="Button" /> 
      </ItemTemplate> 
     </asp:TemplateField> 
    </Columns> 
</asp:GridView>