C# - How To Properly Filter Gridview Bound To Sqldatasource
Sep 21, 2010
I am trying to populate an (editable) gridview in ASP.NET with a table from SQL. I have a SQLDataSource set up for this. I also need to have this gridview be filterable based on parameters entered in textboxes. I have tried using ControlParameters for this and it works but the problem there is when all textboxes are empty I want it to display all results in the gridview. What it does is display nothing because no entries have parameters that equal "". Is there an easy way to do this that I am missing or is there a better way to go about it other than a SQLDataSource?
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Sep 19, 2010
I have an aspx page with 2 controls on it - a GridView bound to a SqlDataSource control.Am I correct in thinking this is 2-tier ?If I were to replace the SqlDataSource with an ObjectDataSource, and make the database connections/calls/queries via a class in the App_Code folder, this would be 3-tier, right ?
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Oct 20, 2010
I have a database which holds the scores in the league for my local table tennis club. There are 3 divisions. On the admin page, I want the admin to be able to add teams and edit the scores. For each league, there is a seperate gridview. How can I use just 1 SQLdatasource to filter the records for each gridview if all the teams are in the same database with the division next to their name? I'm new to web development.
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May 7, 2015
In my project I am having great problem while querying with date
on my page I have two textboxes as starting and ending date and having Ajax Calendar Control on them
If I set date format in Ajax control as dd/MM/yyyy it raises error while searching on date period range
Here are the codes
<%@ Page Title="" Language="VB" MasterPageFile="~/Site.master" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="Accounts_Default" %>
<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>
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<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" Runat="Server">
[Code] .....
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Jul 17, 2015
So I found an example on how to search gridview using filterexpressions on this site (Filter GridView with TextBox using FilterExpression in SqlDataSource in ASP.Net), but now if I try to search with an apostrophe in the textbox, the code fails.
Here's the link to the the article/source - [URL] .....
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Nov 9, 2010
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<object id='video' width='462' height='407' type='application/x-shockwave-flash'
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<param name='allowFullScreen' value='true'>
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How to bind <object ....> tag to grid so that a video can be displayed.
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Jan 31, 2010
I have a sqlDataSource to populate a grdiview ( simple ) . When I set the sql control to a stored proc that has 4 parameters and person a select * from table ignoring the paramaters it doesn't work. No rweturned results.
<table>
<td>
<asp:TextBox ID="vendorid" runat="server" ></asp:TextBox>
<asp:TextBox ID="productid" runat="server" ></asp:TextBox>
<asp:TextBox ID="productdescription" runat="server"></asp:TextBox>
[code]...
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Jul 5, 2010
I have a ListView control that is bound to an SQLDataSource.
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Feb 12, 2010
This seems so very simple yet I am very stuck. Following some articles on the web, I came up with an ASP.NET web app page that is all declarative (no code behind) yet when it produces NOTHING I feel so totally stuck about what I've done wrong. Here is the entire little page:
[Code]...
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Nov 7, 2010
I'm sure this is something simple that I have overlooked, but whilst configuring my SQLDataSource, I have tried to add a where statement onto a column in my datatable that has a data type of 'bit'. I have tried typing 'WHERE Answered = "0"' for false and also 'WHERE Answered = "false"'. The data source doesn't return any rows to my detailsview with either statement.
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Feb 17, 2011
I have an SqlDataSource, which is filtered by two RadioButtonLists. The markup is as follows:
[Code]....
In my code-behind I add the filterexpression when the radiobuttonlists are changed
[Code]....
My problem is that while it works fine when changing the RadioButtonListProducts the filtering works nicely, there is a problem with the RadioButtonListStatus, that filters on the Boolean column, 'Godkendt'. It works nicely if its set to 'Alle' (No filtering on that parameter) but when set to anything else, no records are shown. I suppose the problem is in the filterexpression
[Code]....
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Aug 26, 2010
I have a series of dropdownlists on webform in ASP 4.0. The first drop down is filled upon load, and then when a user selects a value from that list, it populates the second dropdown. To accomplish this, I have a SQLdatasource with a parametersource of the first drop-down list control. This works great, except when a user changes their selection from the first drop down. It performs the query, but then adds the list of items to the ones that were already there from the previous selection, instead of replacing it with the new data. Here is the code:
[Code]....
Do I need to do something on selectedindexchanged to somehow "clear out" the previous datasource? I can't find anything about this online, although one person seemed to suggest it was related to using a master page. (which I am using).
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Aug 29, 2013
sql data source is easily take one filter expression from dropdown list and filter the data show in gridview.
How can i filter sql data source through listbox because in list box user can pass multi selected value in that sql data source stop working.
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Oct 31, 2010
I need good css for Gridview just like the mac css
can we provide the filter functionality to gridview like the excel filter.
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Jan 13, 2010
If the gridview binds to empty dataset, I need to still show a gridview so that users can ADD more using the textfields in the bottom of the footer template. Since the gridview is empty it won't bind not allowing rendering of the <footer template> I guess I should create a empty dataset if the gridview is empty. How do I check for this and can this be done in GridviewRowEventArgs
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Oct 23, 2010
I've been working on a webform to pull data from an oracle database v10. I can create a gridview1 with Selection enabled and it will populate with data without a problem. However when I create a second gridview and bind with a control to the first gridview, I get the following error at runtime when I click on one of the Selects.
Exception Details:
Oracle.DataAccess.Client.OracleException: ORA-00936: missing expressionVS 2010.
[code]...
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Apr 19, 2010
this is my my code snip
[code]....
I put a textbox and a button to page when user click Button , I want to insert a new row to datagrid assume
TextBox.Text = Vivi
when user click Button
first : I use TextBox.Text to DataBase retrieve data for this No (ex: select Name, Tel from student where No = '" TextBox.Text + "'")
and then I want to add this datarow to my DataGrid
I hope I can get result like this
[code]....
How to open a new row to existing GridView? and still keep original data?
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May 7, 2015
In my asp.net Page I am using gridview. I am binding the gridview on page load and on paging event with one method. suppose as Bindgridview1();.
There is one search button for searching the records of user with different method suppose as Bindgridview2(); .
when I am searching the records with Bindgridview2(); paging doesn't work and directly bind with Bindgridview1(); which is on page load when I clicked next page.
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Feb 9, 2010
I'm having some evils trying to get my GridView control to behave. I have the below code, which successfully displays all the files in the directory. However I require two changes, both of which I am struggling with:
a) Currently the URL you get when clicking on the URL field is [URL] (ie my home directory with the filename). What I require is that the 'Display Text' be the filename only, and the URL be my desired text followed by the filename eg: [URL]
b) I want only to see the files that start with a certain prefix eg "Pay". I can do that with something like: string[] filelist = Directory.GetFiles((@"C:MFData","Pay*.*"); but this doesn't like to bind to my Gridview!
const string DocumentFolderPhysicalPath = (@"C:MFData");
const string DocumentFolderUrl = (@"C:MFData"); [URL]; ; // now it is hardcoded but you could retreive it automatically
HyperLinkField hyperLinkField = new HyperLinkField();
hyperLinkField.DataTextField = "Name";
hyperLinkField.DataNavigateUrlFields = new string[] { "Name" };
//Would like this to work!
//HyperLinkField hyperLinkField2 = new HyperLinkField();
//hyperLinkField2.DataTextField = "Destination";
//hyperLinkField2.DataNavigateUrlFields = new string[] { (@"C:MFData") + "Name" };
GridView1.DataSource = GetDocuments(DocumentFolderPhysicalPath);
GridView1.Columns.Add(hyperLinkField);
GridView1.DataBind();
private System.IO.FileInfo[] GetDocuments(string physicalPath)
{
System.IO.DirectoryInfo directory =
new System.IO.DirectoryInfo(physicalPath);
if (directory.Exists)
{
return directory.GetFiles();
}
else
{
throw new System.IO.DirectoryNotFoundException(physicalPath);
}
}
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Jul 13, 2010
I have a repository that contains all of my LINQ queries for this project that I am working on. I am able to get the LINQ results to a DataTable and bind that to a gridview for displaying the data. Now I need to make the gridview sortable. I have set AllowSorting="true" and I have the OnSort event handled in a routine in the codebehind.
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Nov 23, 2010
here my code-
<asp:BoundField DataField="DayOfTheWeek" HeaderText="Day" ItemStyle-CssClass="Itemstyle"/>
from my collection entity I am getting DayOfTheWeek like 1,2...7. 1 for monday , 2 for tuesday like that. Where should I place condition so that in grid view it would display day name rather than corresponding code.
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Oct 22, 2010
I have a grid bound to a linqed SP thus:
Session["results"] = db.spGetCaseByNumberOrSurname(txtCaseNum.Text.Trim(), null).ToList();
gvResults.DataSource = Session["results"];
on the sorting of it, i would like to be able to do this..
protected void gvResults_Sorting(object sender, GridViewSortEventArgs e)
{
string sortExpression = e.SortExpression;
List<spGetCaseByNumberOrSurnameResult> data = Session["results"] as List<spGetCaseByNumberOrSurnameResult>;
if (sd == SortDirection.Ascending)
{
sd = SortDirection.Descending;
gvResults.DataSource = data.OrderBy(d => d.GetType().GetProperty(sortExpression));
}
else
{
sd = SortDirection.Ascending;
gvResults.DataSource = data.OrderByDescending(d => d.GetType().GetProperty(sortExpression));
}
gvResults.DataBind();
}
sadly that doesnt do any sorting at all..it in fact errors with "The data source does not support server-side data paging."
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Jan 5, 2011
My GridView is bound to a certain DataSource. Each row only shows 4 of the 8 possible items. Lets say we have name, adress, phone, fax, email, country, province and age. The GridView would only show name, email, country and age, but I want to access the province and adress bound to a row.
I got a custom GridView, with an onclick event which updates an panel (through AJAX) which shows additional information about the selected row.
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Aug 11, 2010
I have an ASP.NET GridView control in a Web Form. For the sake of simplicity, I will say that this GridView is defined as follows:
[code]...
When each of these rows is bound (a.k.a. during the "myGridView_RowBound" event), I want to get the ID, Name, and Age values. My problem is, I cannot figure out how to get the "ID" value. The reason why is because it is in an invisible field.
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Sep 21, 2010
I have to set maximum length for bound field in an editable gridview. For this i have used data format string property and also given ApplyFormatInEditMode="true" still it accepts invalid input. The gridview does not have template field, it contains bound fields only. I have written OnRowEditing and RowUpdating events. The dataformat string is DataFormatString="{0:N0}" but it accepts '2352345234523454352345' input also and displays server error while updating in database. I want to spcify maximum length for the textboxes generated dynamically when Edit button is clicked.
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