在gridview中设置dropdownlist selectedIndex

Question

我有一个由ObjectDataSource填充的grideview。在EditItemTemplate中，我有一个下拉列表，它通过RowDataBound事件后面的代码填充：

 ddStates.DataSource = snm.getStates();
 ddStates.DataTextField = "State";
 ddStates.DataValueField = "StateID";
 ddStates.DataBind();

现在，我想要做的是将我的下拉列表的选定索引设置为objectDataSource中行的当前值。如何从ObjectDataSource获取StateID？

谢谢，我一直在这个圈子里跑。

Answer 1

您可以随时使用行DataItem来获取基础DataSource：

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow && e.Row.RowState == DataControlRowState.Edit))
    {
        // if this doesn't work, use the debugger to get the type of e.Row.DataItem
        DataRow row = ((DataRowView)e.Row.DataItem).Row;
        int StateID = row.Field<int>("StateID");
        var ddStates = (DropDownList)e.Row.FindControl("ddStates");
        ddStates.DataSource = snm.getStates();
        ddStates.DataTextField = "State";
        ddStates.DataValueField = "StateID";
        ddStates.DataBind();
        ddStates.SelectedValue = StateID.ToString();
    }
}