C# GridView行更新在回发后返回旧值
我的GridView有问题。当我试图编辑我的GridView时,我只得到旧值作为回报 以下是RowUpdate事件:C# GridView行更新在回发后返回旧值,c#,asp.net,gridview,C#,Asp.net,Gridview,我的GridView有问题。当我试图编辑我的GridView时,我只得到旧值作为回报 以下是RowUpdate事件: protected void grid_RowUpdating(object sender, GridViewUpdateEventArgs e) { GridViewRow row = (GridViewRow)GridView1.Rows[e.RowIndex]; TextBox nVorname = (TextBox)row.FindControl("new
protected void grid_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
GridViewRow row = (GridViewRow)GridView1.Rows[e.RowIndex];
TextBox nVorname = (TextBox)row.FindControl("newVorname");
TextBox nNachname = (TextBox)row.FindControl("newNachname");
TextBox nTelnr = (TextBox)row.FindControl("newTelnr");
TextBox nEmail = (TextBox)row.FindControl("newEmail");
HiddenField tid = (HiddenField)row.FindControl("id");
grid.EditIndex = -1;
SqlConnection sqlConn = new SqlConnection("server=localhost;Integrated Security=true;database=Telefonbuch;");
sqlConn.Open();
SqlCommand cmd = new SqlCommand("update dasOertliche set vorname= @vorname, nachname=@nachname, telefonnr =@telnr, email =@email where id = @id", sqlConn);
cmd.Parameters.Add("@vorname", SqlDbType.VarChar);
cmd.Parameters["@vorname"].Value = nVorname;
cmd.Parameters.Add("@nachname", SqlDbType.VarChar);
cmd.Parameters["@nachname"].Value = nNachname.Text;
cmd.Parameters.Add("@email", SqlDbType.VarChar);
cmd.Parameters["@email"].Value = nEmail.Text;
cmd.Parameters.Add("@telnr", SqlDbType.VarChar);
cmd.Parameters["@telnr"].Value = nTelnr.Text;
cmd.Parameters.Add("@id", SqlDbType.Int);
cmd.Parameters["@id"].Value = tid.Value;
cmd.ExecuteNonQuery();
sqlConn.Close();
bind();
}
.aspx中的TemplateField:
<Columns>
<asp:TemplateField HeaderText = "Vorname">
<ItemTemplate> <%#Eval ("vorname") %></ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="newVorname" runat="server" Text='<%#Eval ("vorname") %>'>
</asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
</columns>
我的绑定():
最后需要调用
GridView1.DataBind()
最后需要调用GridView1.DataBind()
在Pageload上,将绑定网格代码置于以下条件
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
bind();
}
}
在Pageload上,将绑定网格代码置于以下条件
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
bind();
}
}
这是错误的
应该是:
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
bind();
}
}
这是错误的
应该是:
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
bind();
}
}
到底在哪里?我在比赛的最后一部分做。最后在哪里?我在行更新的最后一部分进行了更新。我已经更新了答案,请像这样尝试删除绑定();它位于if(!Page.IsPostBack)行上方,并且只保留bind();我已经更新了答案,请像这样尝试删除绑定();它位于if(!Page.IsPostBack)行上方,并且只保留bind();它处于if状态。
protected void Page_Load(object sender, EventArgs e)
{
bind();
if (!Page.IsPostBack)
{
bind();
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
bind();
}
}