如何使用GridView中的dropdownlist更改数据绑定？

Question

如何根据gridview中dropdownlist selectedvalue更改数据绑定？我已经尝试使用字符串，它的工作，我怎么能改变datatabind选择行？

Answer 1

你可以用GridViewRowDataBound事件来做到这一点。

protected void GridView_RowDataBound(object sender, GridViewRowEventArgs e) 
    { 
     if (e.Row.RowType == DataControlRowType.DataRow) 
     { 
      //Try This 
      DropDownlist ddl =((DropDownList)e.Row.FindControl("ddlUOM")); 
      Label lblCargo = ((Label)e.Row.FindControl("lblNameOfCargo")); 
      if(ddl.SelectedValue == "Barrel") 
      { 
      lblCargo.Text = "test"; 
      }  
     } 
    } 

Answer 2

对选定索引更改ddl事件尝试类似这样的事情。

DropDownList ddlUOM = (DropDownList)sender; 
GridViewRow rpItem = ddlUOM .NamingContainer as GridViewRow; 
Label lblCargo = ((Label)rpItem.FindControl("lblNameOfCargo")); 
if(ddlUOM.SelectedValue == "Barrel") 
    { 
    lblCargo.Text = "test"; 
    }