私が直接私のページ(mypage.aspx)にアクセスするたびに、それはエラーを返します:のQueryString検証問題
Object not set to object not set to an instance of an object.
私は(mypage.aspx SR =本当?)クエリ文字列を追加する場合、それは動作しますが、私がチェックしていますそれが値を持っていることを評価する前に、値を持たないようにしてください。では、ページに直接アクセスするとエラーが表示されるのはなぜですか?
if (!IsPostBack)
{
string qu1 = "";
string qu2 = "";
string qu3 = "";
if (Request.QueryString["qu1"] != null)
{
qu1 = Request.QueryString["qu1"].ToString();
if (qu1 != "")
{
qu1DropDownList.SelectedValue = industry;
}
}
if (Request.QueryString["qu2"] != null)
{
qu2 = Request.QueryString["qu2"].ToString();
if (qu2 != "")
{
qu2DropDownList.SelectedValue = category;
}
}
fillDropDownList();
if (Request.QueryString["qu3"] != null)
{
qu3 = Request.QueryString["qu3"].ToString();
if (qu3 != "")
{
qu3tDropDownList.SelectedValue = product;
}
}
}
string search = "";
string qu1value = IndustryDropDownList.SelectedValue;
string qu2value = ProductCategoryDropDownList.SelectedValue;
string qu3value = ProductDropDownList.SelectedValue;
using (SPSite site = new SPSite("SITE"))
using (SPWeb oWebsiteRoot = site.OpenWeb())
{
SPList oList = oWebsiteRoot.Lists["SpacesInfo"];
SPListItemCollection items = null;
if (Request.QueryString["sr"] != "" && Request.QueryString["sr"] != null)
{
search = Request.QueryString["sr"].ToString();
if (search == "true")
{
if (indvalue == "select" & catvalue == "select")
{
items = oList.Items;
}
else if (indvalue != "select" & catvalue != "select" & provalue != "select")
{
SPQuery query = new SPQuery();
query.Query = "MYQUERY";
items = oList.GetItems(query);
}
else if (indvalue != "select" & catvalue != "select" & provalue == "select")
{
SPQuery query = new SPQuery();
query.Query = "MYQUERY";
items = oList.GetItems(query);
}
else if (indvalue != "select" & catvalue == "select")
{
SPQuery query = new SPQuery();
query.Query = "<Where><Eq><FieldRef Name='Industry' /><Value Type='Choice'>" + indvalue +
"</Value></Eq></Where>";
items = oList.GetItems(query);
}
else if (indvalue == "select" & catvalue != "select" & provalue == "select")
{
SPQuery query = new SPQuery();
query.Query = "MYQUERY";
items = oList.GetItems(query);
}
else if (indvalue == "select" & catvalue != "select" & provalue != "select")
{
SPQuery query = new SPQuery();
query.Query = "MYQUERY";
items = oList.GetItems(query);
}
else
{
errorLabel.Text = "Please contact the administrator.";
items = oList.Items;
}
}
else
{
items = oList.Items;
}
}
DataTable table = new System.Data.DataTable();
table = items.GetDataTable();
spacerepeater.DataSource = table;
spacerepeater.DataBind();
}
正確に例外が発生しますか。どの行? –