使用DataBox中的TextBoxes和Dropdownlist填充GridView

时间:2012-08-16 10:23:21

标签: c# asp.net gridview textbox

我有GridView:

  <asp:GridView ID="MyGridView" runat="server" ShowFooter="true"
                                     AutoGenerateColumns="False" Visible="True">
<Columns>
<asp:BoundField DataField="id" ItemStyle-HorizontalAlign="center"/>
<asp:BoundField DataField="fullName"  />
<asp:TemplateField HeaderText="situation>">
<ItemTemplate>
  <asp:DropDownList ID="dl_situation" runat="server" AppendDataBoundItems="true">
   </asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>

<asp:TemplateField HeaderText="procesVerbal">
 <ItemTemplate>
         <asp:TextBox ID="tbNr" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>  

<asp:TemplateField HeaderText="Data">
<ItemTemplate>
               <asp:TextBox ID="tbDate" runat="server"></asp:TextBox>
 </ItemTemplate>
</asp:TemplateField>     
</Columns>
</asp:GridView>

现在我想用数据库中的数据填充这个Grid,我有一个方法可以返回带有我所有数据的数据

当我填写mygrid时:

 MyGridView.DataSource = dataTable;
 MyGridView.Databind();

在这种情况下,所有TextBoxes和DropDownList都为空。

在下面的代码中,我正在尝试创建一个从数据库接收DataTable并使用数据填充gridview的函数。如何为dataTable.Rows创建foreach语句,将TextBox元素和selectedIndex值分配给DropDownList?

protected bool FillGridWithData(DataTable dataTable)
       {bool result;
       try
       {
           foreach (GridViewRow row in MyGridView1.Rows)
           {
               if (row.RowType != DataControlRowType.DataRow) break;
               var ddl = (DropDownList)row.FindControl("dl_situation");
               if (ddl != null)
               {
                 ddl.DataSource = PublicStatic.Situation;
                 ddl.DataTextField = PublicStatic.Name;
                 ddl.DataValueField = PublicStatic.Code;
                 ddl.DataBind();
                 ddl.Items.Insert(0, new ListItem(String.Empty, String.Empty));
                 ddl.SelectedIndex = //data from datatable;
               }
               var tb1 = (TextBox)row.FindControl("tbNr");
               if (tb1 != null)
                   tb1.Text =//data from datatable;

               var tb2 = (TextBox)row.FindControl("tbDate");
               if (tb2 != null)
                   tb2.Text = //data from datatable;
           }
           result = true;
       }
       catch (Exception exception)
       {
           result = false;
       }
       return result;
   }

1 个答案:

答案 0 :(得分:1)

绑定字段中的DataField属性必须等于数据表中的column name。 对于在模板字段中绑定文本框,您可以使用Eval或Bind方法。

示例:

<asp:TemplateField HeaderText="procesVerbal">
 <ItemTemplate>
     <asp:TextBox ID="tbNr" Text='<%# Eval("ColumnName") %>' runat="server"></asp:TextBox>
 </ItemTemplate>
</asp:TemplateField>  

并且为了绑定gridview中的下拉列表,您可以使用单独的sql数据源。并指定dropdownlist DataSourceID,DataTextField和DataValueField属性。

下拉列表示例:

<asp:TemplateField>
     <ItemTemplate>
        <asp:DropDownList ID="ddl" runat="server"  DataSourceID="SqlDataSource1" DataTextField="ProductName" DataValueField="ProductID" ></asp:DropDownList>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>" SelectCommand="SELECT [ProductName], [ProductID] FROM [Alphabetical list of products]"></asp:SqlDataSource>
     </ItemTemplate>
</asp:TemplateField>

如果你想从后面的代码绑定数据源那么你可以使用gridview的RowDataBound事件

protected void GridView1_RowDataBound(Object sender, GridViewRowEventArgs e)
{

    if(e.Row.RowType == DataControlRowType.DataRow)
    {           
        TextBox t = (TextBox)e.Row.FindControl("ControlID"); 
        t.Text = "Some Text";
    }

}