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如何在asp.net中创建动态文本框，下拉列表

2013-08-21 104 views
0

我想在每个文本框下方创建动态2文本框和2个下拉列表，并在按钮点击下拉列表中。这是我正在使用的代码，它创建了动态文本框和下拉列表，但它以横向方式创建控件。我希望以垂直方式创建动态控件，这将在文本框和下拉列表中进行。如何在asp.net中创建动态文本框，下拉列表

<div id="dvContainer" runat="server"> 

<table align="center" cellpadding="0" cellspacing="0" width="90%"> 
<tr> 
<td> 
    <table width="100%"> 
     <tr> 
      <td align="center">Date</td> 
      <td> 
       <asp:TextBox ID="TextBox1" runat="server" Width="150px">    </asp:TextBox> 
      </td> 
      <td align="center">Time</td> 
      <td> 
       <asp:TextBox ID="TextBox2" runat="server" Width="150px"></asp:TextBox> 
      </td> 
      <td align="center">Godown</td> 
      <td> 
       <asp:DropDownList ID="DropDownList1" runat="server" Width="150px"> 
       </asp:DropDownList> 
      </td> 
     </tr> 
    </table> 
</td> 
</tr> 

<tr> 
<td><table width="100%"> 
     <tr> 
      <td align="center">Item</td> 
      <td align="center">QTY</td> 
      <td align="center">Unit</td> 
      <td align="center">Available</td> 
      <td align="center"></td> 

     </tr> 
     <tr> 
      <td align="center"> 
       <asp:DropDownList ID="DropDownList2" runat="server" Width="150px"> 
       </asp:DropDownList> 
      </td> 
      <td align="center"> 
       <asp:TextBox ID="TextBox3" runat="server" Width="150px"></asp:TextBox> 
      </td> 
      <td align="center"> 
       <asp:DropDownList ID="DropDownList3" runat="server" Width="150px"> 
       </asp:DropDownList> 
      </td> 
      <td align="center"> 
       <asp:TextBox ID="TextBox4" runat="server" Width="150px"></asp:TextBox> 
      </td> 
      <td align="center"> 
       <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" /> 
      </td> 

     </tr> 

    </table></td> 
</tr> 

</table> 

</div>

这是我正在使用CS页

public partial class StockEntry : System.Web.UI.Page 
{ 
protected System.Web.UI.WebControls.DropDownList Ddl_Item; 
protected System.Web.UI.WebControls.TextBox Txt_Quantity; 
protected System.Web.UI.WebControls.DropDownList Ddl_Unit; 
protected System.Web.UI.WebControls.TextBox Txt_Available; 

protected void Page_Load(object sender, EventArgs e) 
{ 

} 

int countTimes = 0; 

protected void Button1_Click(object sender, EventArgs e) 
{ 
    if (ViewState["countTimes"] == null) 
    { 
     countTimes = 1; 
    } 
    else 
    { 
     countTimes = Convert.ToInt32(ViewState["countTimes"]); 
    } 

    for (int i = 0; i < countTimes; i++) 
    { 
     Ddl_Item = new DropDownList(); 
     Ddl_Item.ID = "Ddl_Item" + i; 
     Ddl_Item.Width = 180 + i; 

     Txt_Quantity = new TextBox(); 
     Txt_Quantity.ID = "Txt_Quantity" + i; 
     Txt_Quantity.Width = 180 + i; 

     Ddl_Unit = new DropDownList(); 
     Ddl_Unit.ID = "Ddl_Unit" + i; 
     Ddl_Unit.Width = 180 + i; 

     Txt_Available = new TextBox(); 
     Txt_Available.ID = "Txt_Available" + i; 
     Txt_Available.Width = 180 + i; 

     dvContainer.Controls.Add(Ddl_Item); 
     dvContainer.Controls.Add(Txt_Quantity); 

     dvContainer.Controls.Add(Ddl_Unit); 
     dvContainer.Controls.Add(Txt_Available); 

    } 
    countTimes = countTimes + 1; 

    ViewState.Add("countTimes", countTimes); 
}

}

来源

2013-08-21 Pratik Ray

回答

0

你加入你的控件在div，而不是在桌子旁对方的代码。要添加控件周围一些HTML结构，您可以创建文本对象，在其文本的HTML，而之前将它们添加/你的控件之后（例如，你可以添加<br/>）

来源

2013-08-21 10:18:52 Kuzgun

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