Forms Data Controls :: Gridview : Working With A Variable In A SQL Statement?
Mar 21, 2010
On Page1 of a project, I have a Gridview showing a table of customer names (showing CustID, CustName, CustJoinDate). When I click on a record, I have passed a querystring to Page2 showing an address table for that customer. This part works for me.
The SQL statement in simply: Select * from CustAddress where CustID = @cust
What I would like to do though, is capture that @cust to a session variable so that I can use it later on.
View 2 Replies
Similar Messages:
Jul 8, 2010
How do I store an Eval in a variable or use the value of the Eval in an if statement?
View 5 Replies
Dec 18, 2010
I am trying to pass a textbox integer to a sql statement in my code behind using the "where" statement to filter what I get from the mysql database but for some reason, it diplays nothing. If I change the variable in the "where" statement to an actual digit between 1 and 12, it works.
Here's my code:
Default.aspx:
[Code]....
Default.apsx.cs:
[Code]....
View 4 Replies
Oct 20, 2010
Nested GridView Control returns "Object variable or With block variable not set" when outer GridView returns rows.
The Nested GridView Control works as long as the outer GridView returns rows, the following code works: [Code]....
Object variable or With block variable not set.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object variable or With block variable not set.
Source Error:
Line 118: If e.Row.RowType = DataControlRowType.DataRow Then
Line 119: Dim myStatus_ID As SqlDataSource = CType(e.Row.FindControl("sqlDeviceStatusAssign"), SqlDataSource)
Line 120: If Not e.Row.DataItem("Status_ID") Is Nothing Then
Line 121: myStatus_ID.SelectParameters(0).DefaultValue = e.Row.DataItem("Status_ID")
Line 122: End If
I have tried checking for IsDbNull and checking to see if a label exists in a given row. This code *If Not e.Row.DataItem("Status_ID") Is Nothing Then* appears to do nothing.Same with the following:
*Dim localLblItemReference As Label = CType(e.Row.FindControl("lblItemReference"), Label)
*If Not localLblItemReference Is Nothing Then
******************************************************************************************
To further clarify my question above, I am looking for a method to detect e.Row.DataItem("Status_ID") is nothing/null due to the outer GridView returning 0 results in a query.I have a (Outer) GridView Control with another GridView Control inside of a template field with it's associated SqlDataSource control.
In the "Protected Sub GridViewReport_RowCreated", I provide the Select Parameter for the associated SqlDataSource with the DataItem row value.When the (Outer) GridView Control does not return any rows, the "e.Row.DataItem("Status_ID")" throws a:
Exception Details: System.NullReferenceException: Object variable or With block variable not set.
View 3 Replies
Mar 25, 2010
I've done some SSIS package work in the past, but am by no means an expert.
I want to use an SSIS package to do the following:
1. Get the file name of the newest file in a windows folder (using a filename template like his: filename_ *.txt where the * part is always a date in the format of yyyy-mm-dd.
2. Use that file name in later portions of the SSIS package by reading the file and transferring data from it to a SQL table using a Data Flow task.
and use the result (which should be the name of the newest file) to open that file and pull data out of it and into a 2nd SQL table. I admit, I'm not sure how to use the dynamic result of this SELECT query as the file name in a flat file connection manager.
View 6 Replies
Oct 21, 2010
I am rather confused as how or where to declare this variable in asp.net.
[Code]....
Whenever i put this in my sqldatasource for it is asking me to Define Parameters:
The wizard has detected one or more parameters in your SELECT statement. For each parameter in the Select Statement, choose a source for the parameter's value.
View 4 Replies
Dec 8, 2010
My sql statement is not functioning correctly. The gridview does post the items correctly but the results are not correct. Can someone assist me with the sql statement where I'm going wrong with it?
I only have one being reffer to the code because I was testing to see it work. Eventually, the search will be base on multi select and the selected items are going to the stored procedure to search for the proper records.
The following is the site code and sql code. -carlos
Site behind code:
[Code]....
[Code]....
View 7 Replies
Jan 6, 2011
I have walked through other posts with a similar problem but I am very stuck.I am normally use Php/MySQL and am new to ASP (actually only this new client uses it and I'm trying to help them). I am trying to filter a table to only show the last 90 days of records. I found what I thought was the easy solution shown below:
FilterExpression="columnname < GETDATE() - 90"
Or, if you can modify your SQL SELECT statement
SELECT col1, col2, col3 FROM tablename WHERE col3 < GETDATE() -90
However when I added it I get this error:Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Type 'System.Web.UI.WebControls.BoundField' does not have a public property named 'FilterExpression'.I think I have added the code to the wrong place or have another file to edit but I have no clue honestly. The best I can do is show you the file I have the code to in hopes someone may know what this is. Here is the code from the file I added the solution to (my edit is bold/italics/underlined towards the bottom): And shouldn't I have some select statements somewhere like I normally do with MySQL?
<%@ Page Language="C#" MasterPageFile="~/SecureRck.master" AutoEventWireup="true"
Codebehind="Default.aspx.cs" Inherits="SecureRckWeb.Reps.Default" Title="Reps" %>
<%@ Register Assembly="schedule2" Namespace="rw" TagPrefix="cc1" %>
[code]...
View 9 Replies
Apr 29, 2010
I'm quite new to asp.net. I use MS Visual Studio 2008 and MySQL database. When I try to edit a record via gridview and the generated UPDATE syntax I get an error.I inserted a gridview into my asp.net web application and connected it to my database (all is OK). Then I checked for auto generation of update and other syntax:
[Code]....
When I test in a browser I get a pop window form for editing a record. But when I click "update" I get the following error:"You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '?, strSkrajsanNaziv = ?, strKraj = ?, strDavcnaSt = ?, SkupinaID = ? WHERE Stran' at line 1"what's wrong with the UPDATE syntax? Is this syntax only valid when using MSSQL?
View 6 Replies
Nov 18, 2010
I have a conditional Eval statement in a Gridview that returns a boolean result to display an image if two datafields(strings) are identical:
Visible='<%# Eval("customerA").Equals(Eval("customerB")) %>'
Works great except I don't want the image to display if both datafields are empty. How can I add that logic into this Eval stmt?
View 3 Replies
Feb 9, 2010
I have a gridview that I am manually binding in my code behind page because I have to pull out information from other sources for the WHERE clause.The issue is that I get an error on the aspx page that one of the columns is not in the dataview, however when I run the SQL statement in SQL all the columns are there and there is not a spelling error.If I remove the column from the gridview then the page loads.I cannot see why the column is a problem.Here is my ASPX gridview code.
[Code...]
This is the line where the error occurs. <asp:Label ID="Label2" runat="server" Text='<%# Bind("date_submitted") %>'></asp:Label> Here is the code behind
[Code...]
Here is the ending SQL statement that works in SQL and does return the date_submitted column. SELECT id, title, date_submitted, (SELECT username FROM users WHERE (id = t.submitted_by_user_id)) AS submitted_by, (SELECT name FROM departments WHERE (id = t.department_id)) AS department FROM tickets AS t WHERE (closed_by_user_id IS NULL) AND (department_id = 48 OR t.department_id = 83) ORDER BY t.date_submitted DESC
View 2 Replies
Mar 11, 2010
I'm attempting to bind multiple datasources to a single Gridview. Can someone direct me on how to change the below <%# Bind("") %> programatically in the code behind. For example, change "HRID" to "PayrollID" to account for a different column. the dataSource binds to the Gridview so the Rows will not be created yet.
I know how to accomplish this with a boundField, but I'm having issues with setting the text of the label in the ItemTemplate.
<asp:TemplateField HeaderText="ID">
<ItemTemplate>
<asp:Label ID="lblHR" runat="server" Text='<%# Bind("HRID") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="lblNewID" runat="server" Text=""></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
View 4 Replies
Mar 22, 2011
I need to loop through a GridView and get the values of a databound field. Then use those values in my update statement.
Here is the GridView:
[Code]....
And here is my UPDATE statement, which is actually just passing the values to a stored procedure:
[Code]....
Right now, I just have it grabbing the text from a label control, but I know that will not work as it only passes one value. I need to be able to update multiple rows based on the del_doc_num.
View 15 Replies
May 26, 2010
I am new to all this, and ignorant beyond compare. I believe I have the same problem as this :
[URL]. However, the solution proposed for him doesn't seem to work for me. I have a session variable that 'march_cpi_session' that I wish to include in an sql select statement to multiply the values I get from a datatable before they're used to populate a gridview control. The session variable works fine elsewhere in my application, but causes a variety (depending upon how I fiddle about with the syntax) of sql errors. This is the currrent code:
[code]....
View 3 Replies
Feb 19, 2011
One of my table columns is for date and I understand how to use the ORDER BY statement in general. But how would I have the gridview sort with only the future items (relative to the current date) apear and leave out the past entries?
View 10 Replies
Feb 14, 2011
the select statement for my gridview contains a sub select statement..that should allow users to see how many queries are associated with a particular record..how can I get the queries column to display in my grid. As it is a count and not directly bound to any field
SELECT
WardID,
ScriptID,
DateAdded,
(SELECT COUNT(scriptID) FROM query WHERE scriptID = main.scriptID) AS queries.......
View 2 Replies
Jan 28, 2011
I need to run a select statement on log in event and store the value of the select statement (returning one item) in a session variable.Do I have to u sqldatasource for this.. or is there someway I can run a single select statement and store the resulting value in a variable?
View 7 Replies
Aug 11, 2010
I have tested and tried to fix this until I am blue in the face and can not figure it out...
[Code]....
The SQL works fine if I just query in SQL - I only get the error when I try to get anything from the SalesPerson table and display it in my gridview.
View 7 Replies
Feb 8, 2010
I have a GridView; one of the columns displays concatenated records from a tables. to extract the records that are going to be concatenated and put in this column, i have used: FOR XML path('') and it works just fine for displaying those records. the problem now is the whole gridview can not be sorted anymore and gives me a 404, document not found, error whenever i try to click the columns to sort. here is my select statement for my sql datasource select command:
SqlDataSource2.SelectCommand = "Select a1.*, keyword = substring( ( SELECT DISTINCT ', ' + keywordName FROM keywords JOIN key_mm_articles ON key_mm_articles.keywordID = keywords.keywordID WHERE key_mm_articles.articleID = a1.articleID FOR XML path(''), elements ),2,500) FROM articles a1 WHERE title LIKE '" & titles & "' Order By a1.articleID"
View 4 Replies
Mar 17, 2011
I need to get the value from a field in a GridView and and set that to a Session variable, however, it does not seem to be working...
Here is what I have:[Code]....
I am getting System.NullReferenceException: Object reference not set to an instance of an object.
View 6 Replies
Apr 12, 2010
I'm attempting to create a mailto in a gridView as follows:Code Behind (Page_Load)
[Code]....
ASPX Page
[Code]....
The hyperlink field will not grab the mailString variable. It's blank whether I use my constructed string or just the basic "TEST" string. What am I doing wrong?
View 7 Replies
Jan 25, 2010
I have problem with gridview sorting. I am using online example to sort a grid view. see the link [URL] but I always got an error "The gridview fired sorting event without handle" on this statement "helper.ApplyGroupSort();"
<table width="100%">
<tr>
<td colspan=3><asp:Label id="category_name" Runat="server"
ForeColor="#ff0000" Font-Bold=true /></td>
</tr>
<tr>
<td colspan="3" align="center" width="100%">
<asp:GridView ID="dg_drawings"
runat="server" AutoGenerateColumns="False" EnableViewState="False" CellPadding="5" CellSpacing="0" Width="90%"
>
<Columns>
<asp:BoundField DataField="Description"
SortExpression="Description" />
<asp:BoundField DataField="sub_description"
SortExpression="sub_description" />
<asp:BoundField DataField="drawing_id" InsertVisible="False"
ReadOnly="True"
SortExpression="drawing_id" />
<asp:BoundField DataField="DRAWING_DESCRIPTION"
SortExpression="DRAWING_DESCRIPTION" />
<asp:BoundField DataField="DWG_URL" SortExpression="DWG_URL" />
</Columns>
</asp:GridView>
</td>
</tr>
</table>
Here is my C# code
public partial class listDrawings : System.Web.UI.Page
{
admin _admin = new admin();
private GridViewHelper helper;
int categoryid = 0;
protected void Page_Load(object sender, EventArgs e)
{
if (Convert.ToString(Session["logged_in"]) == "1")
{
ph_header.Controls.Add(LoadControl("../controls/builder_header.ascx"));
}
else
{
ph_header.Controls.Add(LoadControl("../controls/header.ascx"));
}
/*if (Convert.ToString(Session["details_hit"]) != "1")
{
_admin.add_page_hit("Standard Details");
Session.Add("details_hit", "1");
}
*/
string categoryidStr = Request.QueryString["categoryid"];
string category = Request.QueryString["category"];
//int categoryid = 0;
if (categoryidStr != null)
{
categoryid = Convert.ToInt32(categoryidStr);
}
category_name.Visible = true;
category_name.Text = category + " Drawing Details";
get_category_drawings(categoryid);
}
protected void get_category_drawings(int categoryid)
{
OracleConnection myConn;
OracleCommand myCmd;
if (categoryid == 3)
{
myConn = new OracleConnection(ConfigurationManager.AppSettings.Get("oracle"));
myCmd = new OracleCommand("DRAWINGS.GET_STAR_SUB_DRAWINGS");
myCmd.CommandType = CommandType.StoredProcedure;
myCmd.Connection = myConn;
myCmd.Parameters.Add(new OracleParameter("iCATEGORY", OracleDbType.Int32, ParameterDirection.Input)).Value = categoryid;
myCmd.Parameters.Add(new OracleParameter("iSUB_CATEGORY", OracleDbType.Int32, ParameterDirection.Input)).Value = 0;
myCmd.Parameters.Add(new OracleParameter("oDRAWINGS", OracleDbType.RefCursor, ParameterDirection.Output));
}
else
{
myConn = new OracleConnection(ConfigurationManager.AppSettings.Get("oracle"));
myCmd = new OracleCommand("DRAWINGS.GET_STAR_DRAWINGS");
myCmd.CommandType = CommandType.StoredProcedure;
myCmd.Connection = myConn;
myCmd.Parameters.Add(new OracleParameter("iCATEGORY", OracleDbType.Int32, ParameterDirection.Input)).Value = categoryid;
myCmd.Parameters.Add(new OracleParameter("oDRAWINGS", OracleDbType.RefCursor, ParameterDirection.Output));
}
try
{
myConn.Open();
this.dg_drawings.DataSource = myCmd.ExecuteReader();
dg_drawings.DataBind();
helper = new GridViewHelper(this.dg_drawings);
string[] cols = new string[2];
cols[0] = "Description";
cols[1] = "sub_description";
helper.RegisterGroup(cols, true, true);
helper.ApplyGroupSort();
}
catch (OracleException ex)
{
if (categoryid == 3)
{
_admin.send_email("resources/listDrawings.aspx", "DRAWINGS.GET_STAR_SUB_DRAWINGS", ex.Message);
}
else
_admin.send_email("resources/listDrawings.aspx", "DRAWINGS.GET_STAR_DRAWINGS", ex.Message);
Response.Redirect("~/error.aspx");
}
finally
{
myCmd.Dispose();
myConn.Close();
myConn.Dispose();
}
}
}
View 5 Replies
Jun 28, 2010
I believe my SQL statement is sound. UPDATE [062610] SET abc = @abc FROM [062610] WHERE (dayID = @dayID) I cant seem to get my stupid variable @abc to sync with my GridView update command. I understand that I can let the GridView take care of my editting for me without having to write any code. But, I am running multiple tables and will be eventually needing to do this manually. Or at least as far as I know.
View 3 Replies
Nov 23, 2010
i calc the sum of columns using:
begBal = Utilities.SumDataColumn( "begBal", dt);
Then in the rowDataBound event i add the total to the gridview footer:
[code]....
I would like to know how i can set the gridview display=false if the begBal variable above =0?
also I set the format of amount columns in the html and code as {0:n2}. How could i add a check box to show no decimal places {0:n0} in the grid (columns and footer)?
View 3 Replies
Aug 3, 2010
For example:
<asp:HyperLinkField Text="Edit" NavigateUrl="EditPage.aspx?var1=Variable1&var2=Variable2" />
I realize this can't be done through the page's mark up, at least I think this is so, but if someone could explain the easiest way the concept could work I'd be very appreciative. Basically, I just need a user to be redirected to a page with more than one variable in the url. If you are unclear with what I'm asking don't hesitate to ask me to explain a little better.
View 2 Replies
