I am trying make the dropdownlist, with AutoPostBack="true", to narrow the results in a search.First problem is that the page doesen't remenber the css link i made neither the contents of the dropdownlist. here is the code for populating the list:
if(!IsPostBack)
{
CategorieSupraDropDownList.DataSource = CatalogAccess.GetCategorieSupra();
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in my page am having one dropdownlist,Textbox and Search Button.Dropdownlist consists of Problem id,Phone No,Email,CardNo. when i select any of the above and enters a related string in textbox and click on search button a gridview will appear with related details. Everything is fine. but my challange is to display this gridview in next page.. how itz possible. i think request.Querystring helps me.but i dnt know how to write dis.Here am Pasting my code. Aspx.cs
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Aspx code:
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I have a HyperLink control in a ListView, and I need to pass a couple of querystring parameters.
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The first parameter is based on the current DataItem value in the LV.
Suppose I want to set a second parameter with a value from Selected.Item.Text in a DropDownList on the same page, how would the HyperLink look?
How can i use querystring for this-
Here in below code i have used querystring for sending imagename from this page to another page. Now i just want that with this imagename in also want to send span element's text with same querystring.How can i achieve this?
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The following code works well as long as I pass a querystring value to the datalist.
Private Sub BindGrid()
Dim id As Integer = Integer.Parse(Context.Request.QueryString("id"))
Dim strConnString As String = ConfigurationManager.ConnectionStrings("Conn").ConnectionString
Using con As New SqlConnection(strConnString)
Using cmd As New SqlCommand()
cmd.CommandText = "select Id, Name from tblFiles where Id=@Id"
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However, the page errors with the message "Value cannot be null." if I don't pass a value. I know that DataList does not have an EmptyItem Property like a Gridview control. I do not want the page to error if I don't pass a value. Need info to deal with empty values in a datalist.
Most websites have pointed me to this code to use:
<FooterTemplate>
<asp:Label ID="lblEmpty" Text="No Result" runat="server"
Visible='<%#boolean.parse(([b]list[/b].Items.Count=0).ToString())%>'>
</asp:Label>
</FooterTemplate>
The 'list' throws an error. The error is "Too few type arguments to 'System.COllections.Generic.List". I am not sure if the code is written in C# and that is what is causing the error. It seems that it should work but I can not figure out the 'list' error.
I'm intermittently seeing this exception being thrown:
A potentially dangerous Request.QueryString value detected
However when I look in the IIS logs I can see that the request that failed has no querystring logged against it.
How could this be? Are "dangerous" query strings being stripped from the log or something?
Encrypt request.querystring and Descrpt request.querystring
View 1 RepliesI have a table and 7 column name.
I bind the 7 column name in one dropdownlist.
Now the problem is,how do I extract the data value in a dropdownlist?
For example,
Dropdownlist contain 7 column name
-subject_name
-subject_code
-venue
-time
-seat_no
-admission_no
-subject_id
when I click the subject_name,I want it to appear in a gridview
Example
Math|9.00-10.00|Hall|18|09090J|...
Below is my current codes which I have a problem.
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source= EN\SQLEXPRESS;" + "Initial Catalog=ms;Integrated Security=SSPI");
SqlDataAdapter adapSel;
string mySQL = "SELECT '" + dd_list.SelectedValue+ "' FROM examtimetable ";
adapSel = new SqlDataAdapter(mySQL, conn);
conn.Open();
DataSet dsSel = new DataSet();
adapSel.Fill(dsSel);
GridView1.DataSource = dsSel;
GridView1.DataBind();
conn.Close();
}
Previously I have bind 7 column name in my dropdownlist
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack == false)
{
SqlConnection conn = new SqlConnection("Data Source= EN\SQLEXPRESS;" + "Initial Catalog=ms;Integrated Security=SSPI");
SqlCommand sqlCmd = new SqlCommand("select column_name from information_schema.columns where table_name='examtimetable' and COLUMN_NAME not like '%ID'", conn);
conn.Open();
SqlDataReader ds;
ds = sqlCmd.ExecuteReader();
dd_list.Items.Clear();
dd_list.DataSource = ds;
dd_list.DataTextField = "Column_Name";
dd_list.DataValueField = "Column_Name";
dd_list.DataBind();
dd_list.Items.Insert(0, "Select Option");
ds.Close();
conn.Close();
}
}
Currently,below is my code.
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source= E\SQLEXPRESS;" + "Initial Catalog=k;Integrated Security=SSPI");
SqlDataAdapter adapSel;
string mySQL = "select column_name from information_schema.columns where table_name='examtimetable' '" + dd_list + "'";....
I receive an error "Incorrect syntax near 'System.Web.UI.WebControls.DropDownList'."
protected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrict();
}
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here when i click on ALL item from ddlzone1 it just "ALL" item in ddldistrict
i want when i select "ALL" item from ddlzone1 in ddldistrict14 show all data from database
i have 3 drop down list in my page
1-ddlzone1
2-ddldistrict1
3-ddlstore1
this is ddlzone1 code
protected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e) {
DDLstore1.Items.Clear();
DDLstore1.Items.Add(new ListItem("select center", ""));
DDLstore1.AppendDataBoundItems = true;
SqlCommand _cmd = new SqlCommand("selectcenter", _cn);
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I want to making another dropdownlist visible=false when clicking in dropdownlist on the same detailsview?
View 4 RepliesI have a gridview with 3 nested dropdownlists in one cell on edit like this:To get the exact fields when the user clicks on edit I used the following code(yes it's messy)
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The BLLOnderhoud is a class and the getReserveInfo is used to get the Model - Brand(merk) Information.Since the dropdownlists are nested in the gridview I can't call them directly and they can't call any of my functions.And this is the problem, when I change the dropdownfield Model the Auto field wich is the last dropdown(in the picture is a typo) should be binded like in the following code:
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But the dropdownlist onDataBound event can't call any of my functions that are in my class.So my question is how can the onDataBound event of the second dropbox trigger a function? The only thing that the function has to do is to bind the 3rd dropdownlist
I had use a combox to let user select staff name and then it will automatically retrive the responsible recommending officer and approving officer to display in other 2 dropdownlist.
my code works fine but when user select staff name each time, the page will reload once to refresh the dropdownlist.
user complaint and don't want the page reload every time, how can i disable the postback? I need to use ajax?
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I have a URL QueryString and need to rewrite the URL.
Actual URL QueryString
[URL]
This part of the URL string needs to be hidden:
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I am using multiple .net applications with single login. The login page is also a seperate application. I want to send values(<b>with security</b>) from login application to another application. What is the best method.
View 2 RepliesI have a page passing querystring to next new page like this
[URL]
What is the code of pageload event to get this value 2 into label1 ?
I have a link with a querystring with a unique ID that is to take a file in rar format and I'm supposed to download this file, extract the file inside and then salvarlo.
View 3 RepliesI need to rewrite the links of a breadcrumb menu because the pages in my website are hierarchical and the content is dependent of a querystring (i.e. Shop >> Category >> Item).I found in ASP Quickstart tutorials how to do this (http://quickstarts.asp.net/QuickStartv20/aspnet/doc/navigation/sitenavapi.aspx#resolve). I did everything exactly as it is explained, extended the class with one extra node:In Global.asax I have:
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The class:
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Unfortunally this doesn't work. Can anyone tell me what I did wrong or what is missing?
I have two pages manager and user both have drop downs as
Week, Months and Years.
User have to enter some data week wise for each months and Manager have to approve that.
To Approve manager select months and week from dropdown on his own page and then navigate to User page.
How does I should bind the drop down so that if manager select 1st week from it's page and goes to view link of user then in drop down of user selected value shold be the same as selected by Manager on his own page.
I am currently attempting to set a default value on an INSERT of a ListBox to a QueryString value. I am able to do this successfully in a DetailsView, however, it doesn't seem to work for a ListBox. Here is my code:
<InsertItemTemplate>
<asp:TextBox
ID="TextBox1"
runat="server"
value='<%# Request.QueryString["Item_ID"] %>'
Text='<%# Bind("Item_ID") %>'></asp:TextBox>
The syntax is accepted, however, when in insert mode, the value is not populated.
I have a DropDownList that has AutoPostBack set to true and the following OnSelectedIndexChanged function:
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This works great in every browser, except IE. In Firefox and Safari it works as expected: it appended the following QueryString: "?campus=SELECTION". In IE, it doesn't do this at all. In fact, no QueryString is present in the URL.I have no idea what would be wrong. If you want to see the page in action: [URL]
i am new to ASP.net website programming i have a page with dropdown list connected with batabase file. I put Image button that automatically retreive image from default project location but it does not accessing image from folder that i made for images. Secondaly i want to send the information to another page that when user click the image button of any record it move to another page showing the same image and its details. i made the second page with detailsview control and it also showing large image and information but how to pass argument (querystring)to second form whith record id and second form show it. detail about what to write behind the button_click trigger and other changes.
View 4 RepliesI want to check that there is a querystring in the page load event.If there was not one when the page was loaded I am going to response.redirect back to the page that generates the query string.Not sure what to check for in the page that gets loaded.
View 4 RepliesCan we pass querystring in the same page?? if yes then how ?i am using Tab Container control of AJAX Toolkit and in that i have 5 tabs all of them gets the value through querystring from another page but i want to pass different querystring to tab no 4 so for that i am trying to pass another querystring on the same page on TabContainer1_ActiveTabChanged event.i give another querystring to tab no 4
View 5 Replies