[英]How to refresh whole page before going into update mode in gridview(asp.net)?
我有一個網站,管理員可以在其中刪除或添加新的gridview。 例如,如果我當前擁有giordano產品的gridview,並且想要將品牌更改為bossini產品。 當管理員單擊“編輯”按鈕時,應該刪除giordano產品的整個gridview和代碼,如果我已經處於更新模式,並將品牌名稱更改為“ bossini”並單擊“ update”,則應該為bossini產品添加新的gridview和代碼。
現在是問題所在。 當我單擊編輯按鈕時,它將刪除整個gridview代碼,但gridview本身仍顯示在網站中。 我終於知道我需要刷新頁面,但是我還不知道最好的方法。 我已經在GuitarBrandsGridView_RowEditing中嘗試過Response.Redirect(“ urls”),但是它不起作用,給了我一個例外。 它適用於GuitarBrandsGridView_RowDeleting。 我只是假設它可能對我的編輯按鈕有效,但是失敗了。
我的目標是,當我單擊gridview中的“編輯”按鈕時,整個網頁應該刷新,然后進入更新模式。 希望這是有道理的。
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack) {
bindgridviewguitarbrands();
BindGridViewDataList.GetItemsLoad();
}
}
//Start of Gridview Code for Guitar Brands
private void bindgridviewguitarbrands()
{
con1.Open();
cmd1.CommandText = "SELECT * FROM [guitarBrands]";
cmd1.Connection = con1;
SqlDataAdapter da1 = new SqlDataAdapter(cmd1);
da1.Fill(ds1);
con1.Close();
GuitarBrandsGridView.DataBind();
}
protected void GuitarBrandsGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string name = Convert.ToString(DataBinder.Eval(e.Row.DataItem, "Name"));
Button button = (Button)e.Row.FindControl("GuitarBrandsGridViewBtnDelete");
button.Attributes.Add("onclick", "JavaScript:return ConfirmationBox('" + name + "' )");
}
}
protected void GuitarBrandsGridView_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int id = Convert.ToInt32(GuitarBrandsGridView.DataKeys[e.RowIndex].Value.ToString());
Label name = (Label)GuitarBrandsGridView.Rows[e.RowIndex].FindControl("lblName");
RemoveCodeToGuitarFile.RemoveAddGuitarClass(name.Text);
RemoveCodeToGuitarFile.RemoveConnectionClassGuitarItems(name.Text);
RemoveCodeToGuitarFile.RemoveOverviewGuitarDataASPX(name.Text);
RemoveCodeToGuitarFile.RemoveOverviewGuitarDataCode(name.Text);
File.Delete(@"C:\Users\User1\Documents\Visual Studio 2015\WebSites\MusicStore\Pages\GuitarItems" + id + ".aspx");
File.Delete(@"C:\Users\User1\Documents\Visual Studio 2015\WebSites\MusicStore\Pages\GuitarItems" + id + ".aspx.cs");
ConnectionClassGuitarBrands.RemoveGuitarBrandsDatabase(name.Text);
con1.Open();
cmd1.CommandText = "DELETE FROM [guitarBrands] WHERE id=" + id;
cmd1.Connection = con1;
int a = cmd1.ExecuteNonQuery();
con1.Close();
if (a > 0) {
bindgridviewguitarbrands();
}
Response.Redirect("~/Pages/OverviewGuitarData.aspx");
}
protected void GuitarBrandsGridView_RowEditing(object sender, GridViewEditEventArgs e)
{
GuitarBrandsGridView.EditIndex = e.NewEditIndex;
string id = GuitarBrandsGridView.DataKeys[e.NewEditIndex].Value.ToString();
Label name = (Label)GuitarBrandsGridView.Rows[e.NewEditIndex].FindControl("lblName");
RemoveCodeToGuitarFile.RemoveAddGuitarClass(name.Text);
RemoveCodeToGuitarFile.RemoveConnectionClassGuitarItems(name.Text);
RemoveCodeToGuitarFile.RemoveOverviewGuitarDataASPX(name.Text);
RemoveCodeToGuitarFile.RemoveOverviewGuitarDataCode(name.Text);
File.Delete(@"C:\Users\User1\Documents\Visual Studio 2015\WebSites\MusicStore\Pages\GuitarItems" + id + ".aspx");
File.Delete(@"C:\Users\User1\Documents\Visual Studio 2015\WebSites\MusicStore\Pages\GuitarItems" + id + ".aspx.cs");
ConnectionClassGuitarBrands.RemoveGuitarBrandsDatabase(name.Text);
bindgridviewguitarbrands();
Response.Redirect("~/Pages/OverviewGuitarData.aspx");//this one is not working
}
// row update event
protected void GuitarBrandsGridView_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
// find student id of edit row
string id = GuitarBrandsGridView.DataKeys[e.RowIndex].Value.ToString();
// find updated values for update
TextBox type = (TextBox)GuitarBrandsGridView.Rows[e.RowIndex].FindControl("txtType");
TextBox name = (TextBox)GuitarBrandsGridView.Rows[e.RowIndex].FindControl("txtName");
TextBox image = (TextBox)GuitarBrandsGridView.Rows[e.RowIndex].FindControl("txtImage");
cmd1 = new SqlCommand("UPDATE [guitarBrands] SET Type = '" + type.Text + "', Name = '" + name.Text + "', Image = '" + image.Text + "' WHERE ID = " + id, con1);
con1.Open();
cmd1.ExecuteNonQuery();
con1.Close();
int ID = Convert.ToInt32(id);
ConnectionClassGuitarBrands.CreateGuitarBrandsDatabase(name.Text);
AddCodeToGuitarFile.AddGuitarClassCode(name.Text, ID);
AddCodeToGuitarFile.AddConnectionClassGuitarItems(name.Text);
AddCodeToGuitarFile.AddOverviewGuitarDataASPX(name.Text, ID);
AddCodeToGuitarFile.AddOverviewGuitarDataASPXCode(name.Text);
AddASPXAndCSFileForGuitarBrands.AddFile(name.Text, ID);
GuitarBrandsGridView.EditIndex = -1;
bindgridviewguitarbrands();
}
// cancel row edit event
protected void GuitarBrandsGridView_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
string id = GuitarBrandsGridView.DataKeys[e.RowIndex].Value.ToString();
TextBox name = (TextBox)GuitarBrandsGridView.Rows[e.RowIndex].FindControl("txtName");
int ID = Convert.ToInt32(id);
ConnectionClassGuitarBrands.CreateGuitarBrandsDatabase(name.Text);
AddCodeToGuitarFile.AddGuitarClassCode(name.Text, ID);
AddCodeToGuitarFile.AddConnectionClassGuitarItems(name.Text);
AddCodeToGuitarFile.AddOverviewGuitarDataASPX(name.Text, ID);
AddCodeToGuitarFile.AddOverviewGuitarDataASPXCode(name.Text);
AddASPXAndCSFileForGuitarBrands.AddFile(name.Text,ID);
GuitarBrandsGridView.EditIndex = -1;
bindgridviewguitarbrands();
}
您無需刷新整個頁面
GuitarBrandsGridView.DataSource = ds1
GuitarBrandsGridView.DataBind();
然后將更新新數據
Response.Redirect("http://localhost:14999/Home/Index");
您希望頁面刷新的位置需要提供頁面的完整路徑,它將重新加載該頁面。 我希望它會為我工作
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