传递参数，这势必一个GridView的用户控件 [英] Passing parameter to a user control which is bound to a gridview

问题描述

我有一个名为ActivityGrid的用户控件这需要对象的名单在它的构造函数的参数。

 公共ActivityGrid（列表＆LT; clsActivityRow＆GT; ActivityData）
{
   bindData（ActivityData）;
}
 

我需要绑定在一个名为parentGrid G​​ridView控件这个用户的控制，所以我用的TemplateField。

 ＆LT; ASP：GridView控件ID =GridViewParent=服务器的AutoGenerateColumns =FALSE＆GT;
＆LT;柱体和GT;
   ＆LT; ASP：的TemplateField＆GT;
      ＆LT;＆ItemTemplate中GT;
         ＆所述; TR＆GT;
            ＆LT; TD合并单元格=100％＆GT;
               ＆LT; UC1：ActivityGrid ID =ActivityGrid1=服务器/＆GT;
            ＆LT; / TD＆GT;
         ＆LT; / TR＆GT;
      ＆LT; / ItemTemplate中＆GT;
   ＆LT; / ASP：的TemplateField＆GT;
＆LT; /专栏＆GT;
＆LT; / ASP：GridView的＆GT;
 

  

我如何通过对象的名单在该用户的控制，而这是
  一个GridView里面绑定？

我有对象的列表＆LT名单; clsActivityRow＆GT; ActivityData 在code后面准备好了。

解决方案

您需要找到ActivityGrid1 对象中的每行的<$的C $ C> GridViewParent 在的RowDataBound 事件并指派数据源。

 保护无效GridViewParent_RowDataBound（对象发件人，GridViewRowEventArgs E）
{
        如果（e.Row.RowType == DataControlRowType.DataRow）
        {
          ActivityGrid ActivityGrid1 =（ActivityGrid）e.Row.FindControl（ActivityGrid1）;
                如果（ActivityGrid1！= NULL）
                {
                    ActivityGrid1.DataSource = SomeMethodToReturnDataSource（）;
                    ActivityGrid1.DataBind（）;
                }
         }
}
 

或者如果你的控件有网格视图即ActivityGrid1有gridView1那么你可以找到gridView1在ActivityGrid1

 保护无效GridViewParent_RowDataBound（对象发件人，GridViewRowEventArgs E）
{
        如果（e.Row.RowType == DataControlRowType.DataRow）
        {
          ActivityGrid ActivityGrid1 =（ActivityGrid）e.Row.FindControl（ActivityGrid1）;
                如果（ActivityGrid1！= NULL）
                {
                    GridView控件gridView1 =（ActivityGrid）ActivityGrid1 .FindControl（gridView1）;
                    gridView1.DataSource = SomeMethodToReturnDataSource（）;
                    gridView1.DataBind（）;
                }
         }
}
 

I have a user control named ActivityGrid which takes a list of object as a parameter in it's constructor.

public ActivityGrid(List<clsActivityRow> ActivityData)
{
   bindData(ActivityData);
}

I need to bind this user control in a gridView called parentGrid, so I used Templatefield.

<asp:GridView ID="GridViewParent" runat="server" AutoGenerateColumns ="False">
<Columns>
   <asp:TemplateField>
      <ItemTemplate>
         <tr>
            <td colspan="100%">
               <uc1:ActivityGrid ID="ActivityGrid1" runat="server" />
            </td>
         </tr>
      </ItemTemplate>
   </asp:TemplateField>
</Columns>
</asp:GridView> 

How do I pass the list of object in this user control while it is bound inside a gridview?

I have the list of object List<clsActivityRow> ActivityData ready in the code behind.

解决方案

You need to find the ActivityGrid1 object in every row of GridViewParent in its RowDataBound event and assign datasource.

protected void GridViewParent_RowDataBound(Object sender, GridViewRowEventArgs e)
{           
        if (e.Row.RowType == DataControlRowType.DataRow)
        {                
          ActivityGrid ActivityGrid1= (ActivityGrid )e.Row.FindControl("ActivityGrid1");                    
                if (ActivityGrid1 != null)
                {
                    ActivityGrid1.DataSource = SomeMethodToReturnDataSource();                       
                    ActivityGrid1.DataBind();
                }
         }          
}

or if your control has grid view i.e ActivityGrid1 has gridView1 then you can find gridView1 in ActivityGrid1

protected void GridViewParent_RowDataBound(Object sender, GridViewRowEventArgs e)
{           
        if (e.Row.RowType == DataControlRowType.DataRow)
        {                
          ActivityGrid ActivityGrid1= (ActivityGrid )e.Row.FindControl("ActivityGrid1");                    
                if (ActivityGrid1 != null)
                {
                    GridView gridView1 = (ActivityGrid )ActivityGrid1 .FindControl("gridView1");    
                    gridView1.DataSource = SomeMethodToReturnDataSource();                          
                    gridView1.DataBind();
                }
         }          
}

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