Question

我在VB.net中编程。我试图通过搜索我的数据库的电子邮件地址来填充2个gridview表。当用户点击搜索按钮时，我希望我的程序从文本框中获取值，在我的数据库中搜索电子邮件地址，然后在我的'ScrumMaster'表和我的'Developers'表中显示用户配置文件。我不知道如何在一个'btnSearchEmail_Click'方法中实现所有这一切。目前我的代码是

 Protected Sub btnSearchEmail_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSearchEmail.Click

End Sub


Protected Sub ScrumMastersDataSource_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.LinqDataSourceSelectEventArgs) Handles ScrumMastersDataSource.Selecting
    Dim db As New AgileClassesDataContext()

    Dim enteredEmail = txtEnteredEmail.Text

    Dim scrumMasters = (From u In db.Users
                      Join ur In db.UserRoles On u.UserId Equals ur.UserId
                      Join r In db.Roles On ur.RoleId Equals r.RoleId
                      Where r.RoleId = 2 And u.Email = enteredEmail
                      Select u).Distinct

    e.Result = scrumMasters
End Sub


Protected Sub DevelopersDataSource_Selecting(sender As Object, e As System.Web.UI.WebControls.LinqDataSourceSelectEventArgs) Handles DevelopersDataSource.Selecting
    Dim db As New AgileClassesDataContext()

    Dim enteredEmail = txtEnteredEmail.Text

    Dim developers = (From u In db.Users
                      Join ur In db.UserRoles On u.UserId Equals ur.UserId
                      Join r In db.Roles On ur.RoleId Equals r.RoleId
                      Where r.RoleId = 3 And u.Email = enteredEmail
                      Select u).Distinct

    e.Result = developers
End Sub

正如您所看到的，这里有3种方法。我想在'btnSearchEmail_Click'事件中放置'ScrumMastersDataSource_Selecting'和'DevelopersDataSource_Selecting'，以便它们在单击'btnSearchEmail'时运行。由于电子邮件地址可能与开发人员和Scrum主控角色相关联，因此复制不是问题。任何的建议都受欢迎。我希望这个问题有道理

Answer 1

尝试这样的事情（这是C＃/ VB.NET的混合）：

private void RefreshGrids()
{
    ScrumMastersDataSource.DataSource = GetListScrum(txtEnteredEmail.Text);
    ScrumMastersDataSource.DataBind();
    DevelopersDataSource.DataSource = GetListDev(txtEnteredEmail.Text);
    DevelopersDataSource.DataBind();
}

Protected Sub btnSearchEmail_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSearchEmail.Click

    RefreshGrids();

End Sub

单击一个按钮填充多个网格视图

1 个答案: