on page load I fill a repeater with checkboxes. I use a separate tablelist (subcatID & userID) to check if chkbox is checked or not.
On pageload and works fine (according boxes are checked):
[Code]....
When submitting the adapt button .. nothing happens and I can't figure out why ..
[Code]....
Im creating a checkbox dynamically like so:
[Code]....
How can I add an onclick attribute to a particular list item?
I have a situation where I want to show the selected records out of total records for a product of an employee
1) There is a checkbox list bind to <List> of objects from object datasource (For total items in list)
2) Now I want to check the selected items for a particular record in this list
3) For this purpose I have another list of <List> selected items returned by data access layer (For selected items for that employee )
4) How do I bind the selected objects with the total items list ?
5) In spaghetti coding model it was all too easy just by binding the checkbox list with a sql data source and running a for each on form load
I want to create dynamic gridview with checkbox as first column(template).
I have created all thing and its working fine. But the checkbox checked value gets cleared on post back.
[Code]....
This is my template class and adding template field to gridview as below
[Code]....
I've been reading up on the problems with dynamically created controls and how they have been solved. The posts I have come across are creating the controls in a panel or some other open place. I can't seem to get my checkbox to fire the event from inside a gridview. below is the code behind from inside the GridView PreRender event.
[Code]....
..And the Checked Event..
[Code]....
So after all this, nothing happens. I get the postback flash but my command inside the checked event doesn't fire.I tried putting the dynamic creation of the checkbox in Page Load with no effect.. I think because I can't place the checkbox inside the GridView under page load.
i have checkboxlist & gridview, in which i want to make multi selection using checkbox, so when i click on checkbox the data will filter according to selected check box and appear in grid.
View 1 Replies[URL] i am trying to display one check box that would perform 'selectall/deselect all' . As I have data paging, I assume I do not have the id's of page 2 yet. how would one go about implementing this.
View 1 RepliesI have a gridview with a checkbox field. I would like for the user to be able to the row with a single click of the checkbox instead of having to click the edit button. How can I accomplish this?
[Code]....
I was able to gather a value from a gridview based on a selected checkbox. However, I would like to be able to grab multiple values instead of just one. I tried using a for loop to gather my information and populate labels as a test. However, that caused an error. This is the code I currently have to use.
foreach (GridViewRow gvr in GridView1.Rows)
{
if (((CheckBox)gvr.FindControl("CheckBox1")).Checked)
{
lblTest.Text = gvr.Cells[1].Text;
}
}
How to gather multiple values and populate other labels? the other labels are labeled accordingly as lblTest2 and lblTest3. I currently am gathering my data from a gridview and only want to pull the StaffID from gvr.Cells[1].text.
[Code]....
when i use it on a empty webform it works nicely, however when i use it in a ListViews InsertItemTemplate it does not.get an error aying document.GetElementById is null and stops elowdocument.getElementById("CheckBoxListStr_0").checked = false
i m unable to bind data inside checkbox list. this is my code
protected void dlBreeds_ItemDataBound(object sender, DataListItemEventArgs e)
{
try
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
CheckBoxList cbl = e.Item.FindControl("cblAnimaltype") as CheckBoxList;
if (cbl != null)
{
cbl.DataTextField = DataBinder.Eval(e.Item.DataItem, "BGName").ToString();
cbl.DataValueField = DataBinder.Eval(e.Item.DataItem, "ID").ToString();
}
}
}
catch (Exception ex)
{
pnlStatus.Visible = true;
lblMessage.Text = ex.Message.ToString();
}
}
protected void BindAnimals()
{
//*********************************************************************************
// Purpose : To bind breeds in listbox
// Inputs : Nothing
// Returns : Nothing
//*********************************************************************************
DataSet ds = new DataSet();
try
{
ds = InvertebrateProviders.GetBreedsName_Invertebrate(1);
if (ds.IsInitialized)
{
DataView dv = ds.Tables[0].DefaultView;
dv.RowFilter = "ID<>0";
dlBreeds.DataSource = dv;
dlBreeds.DataBind();
}
}
catch(Exception ex)
{
pnlStatus.Visible = true;
lblMessage.Text = ex.Message.ToString();
}
}
<asp:DataList id="dlBreeds" runat="server" DataKeyField="BGName" OnItemDataBound="dlBreeds_ItemDataBound" RepeatDirection="Vertical">
<ItemTemplate>
<asp:Panel ID="pnbBreed" BorderColor="#7f9db9" Height="129px" Width="220px" ScrollBars="Vertical" BorderWidth="1px"
BorderStyle="solid" runat="server" Visible="true">
<asp:CheckBoxList ID="cblAnimaltype" DataTextField='<%#Eval("BGName") %>' DataValueField='<%#Eval("ID") %>' AutoPostBack="True" runat="server" Height="129px" CellPadding="0" CellSpacing="0"
OnSelectedIndexChanged="cblAnimaltype_SelectedIndexChanged" Width="200px" >
</asp:CheckBoxList></asp:Panel>
<asp:CheckBoxList ID="cblBreeds" Height="90px" Width="200px" runat="server" ></asp:CheckBoxList>
</ItemTemplate>
</asp:DataList>
I'm trying to collect the checked boxes values in a data list. Need to collect the checked value (ie "1") and the data key value (cdID) together in an array to then insert into DB. Here's the Datalist:
[Code]....
Here's my attempt(which isn't working too well):
[Code]....
My problem is this "I have all the tools, VS 2005, 2008, 2010. I have every book, I have SQL server 2005 and 2008" I have all the tools, but I do not know what tool or technology to use when starting out learning all this. I juat do not know what book teaches what I need to do for something like below.
Here is my question:
I created an .ASPX webform that is to "Submit" to a SQL 2005 database. I gave this form to my DBA, and he has made up a Data Model. Now I have to figure out how to write the ASP.NET code so it will submit to the DB. My first issue is not knowing this:
1. "How do I loop through my CheckBox List", and then insert the values checked into a "Database Table" (Each Checkbox value MUST be a seperate row in the table, the DBA does not want a seperate column for each checkbox value)
2. The database is using stored procedures
3. My third issue is this: "I do not know "where" to put the "code". If you do resond to this,
Summary: I just need shown the code on how to "loop through" the CheckBox List on my form, and insert those values into a database table as seperate rows.
I have been stuck on this for a while and I can't seem to get it to work despite looking for answers in books and all over the web, so I hope perhaps you all can help me figure this out...
Here's what I'm trying to do....
I have some information in a simple product database displaying in a gridview table. One of the columns is a row of checkboxes indicating whether the item has been discontinued or not. When the row gets updated, it needs to update the checkbox value in the database.
1. It needs to be disabled until the row is getting edited.
2. Send the string value of 0 or 1 to the database when the row is updated.
Here's the code for the sql datasource and the gridview part in question...
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:sqlDataMaster %>"
ProviderName="<%$ ConnectionStrings:sqlDataMaster.ProviderName %>"
SelectCommand="SELECT ID, ProductName, ListPrice, Discontinued FROM Products"
UpdateCommand="UPDATE Products SET ProductName=@ProductName, ListPrice=@ListPrice, Discontinued=@Discontinued WHERE ID=@ID"
DeleteCommand="DELETE FROM Products WHERE ID=@ID">
<UpdateParameters>
<asp:Parameter Name="ID" Type="Int32" />
<asp:Parameter Name="ProductName" Type="String" />
<asp:Parameter Name="ListPrice" Type="Double" />
<asp:Parameter Name="Discontinued" Type="Boolean" />
</UpdateParameters>
<DeleteParameters>
<asp:Parameter Name="ID" Type="Int32" />
<asp:Parameter Name="ProductName" Type="String" />
<asp:Parameter Name="ListPrice" Type="Double" />
<asp:Parameter Name="Discontinued" Type="Boolean" />
</DeleteParameters>
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AutoGenerateColumns="False" AllowSorting="True"
DataSourceID="SqlDataSource1" CellPadding="3"
GridLines="Vertical" BackColor="White" BorderColor="#999999"
BorderStyle="None" BorderWidth="1px"
DataKeyNames = "ID">
<Columns>
<asp:CommandField ShowSelectButton="True" ShowEditButton="true" ShowDeleteButton="true" />
<asp:BoundField DataField="ID" HeaderText="Product ID" SortExpression="ID" ReadOnly="true" />
<asp:BoundField DataField="ProductName" HeaderText="Product Name"
SortExpression="ProductName" >
<ItemStyle HorizontalAlign="Left" />
</asp:BoundField>
<asp:BoundField DataField="ListPrice" DataFormatString="{0:c}"
HeaderText="Unit Price" SortExpression="ListPrice" />
<asp:TemplateField HeaderText="Discontinued" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:CheckBox id="Discontinued" runat="server"
Checked='<%#Convert.ToBoolean(Eval("Discontinued")) %>' />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center"></ItemStyle>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#CCCCCC" ForeColor="Black" />
<PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#000084" Font-Bold="True" ForeColor="White" />
<AlternatingRowStyle BackColor="#DCDCDC" />
</asp:GridView>
Here's a live version for you to look at...
http://homeworksite.mythandmagicstudios.com/homework4/proj3/default.aspx
I am very new to updating the datasource using ObjectDatasource. I have a checkbox on click of update the update method triggers but though teh check box is checked, the value is updated as false.
<asp:TemplateField HeaderText="IsPrimary" SortExpression="IsPrimary">
<EditItemTemplate>
<asp:CheckBox runat="server" ID="chkIsPrimary" Checked='<%# Eval("IsPrimary") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Remarks">
<EditItemTemplate>
<asp:TextBox ID="txtRemarks" runat="server" SkinID="longTextBox" TextMode="multiLine"
Text='<%# Bind("Remarks") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>......................
in a grid view i have a checkbox column ,which is making checked based on the char value from the SQL DB.
In SQL DB field type is char(1).
My requirement is , need to pass "Y" if checkbox is true ,and "N" if checkbox is false.How to pass that parameter in an update statement.
How it is possible?I used the parameter like as follows.But it is giving me an error when i click update.Groupid parameter is working perfect.The error is coming from the "HPermission" parameter.
<asp:BoundField DataField="GroupID" HeaderText="GroupID" InsertVisible="False" ReadOnly="True" SortExpression="GroupID" />
<asp:TemplateField HeaderText="Hud" >
<ItemTemplate>
<asp:CheckBox ID="chkStatus1" runat="server" AutoPostBack=false
Checked='<%# Convert.ToBoolean(Eval("HPermission").ToString().Equals("Y")) %>'
/>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
UpdateCommand="exec [dbo].[GridUpdDel] @GroupID,@HPermission,'UPDATEPERMISIION',0,'',''" >
<UpdateParameters>
<asp:Parameter Name="GroupID" />
<asp:Parameter Name="HPermission" />
</UpdateParameters>
I'm fairly new to MVC and have an issue converting something I created using normal ASP.NET to MVC framework.I have a database with one to many relationship between 2 tables. I need to be able to make amendments to the single parent row in the same page as that which will edit the many records. The values to be edited in the table with many rows to be edited are either true or false and will be edited using a checkbox.
To make it a little more complicated the list of checkboxes is actually dynamic and is built from another table.In the normal ASP.NET page, all the controls are placed in a details view and the dynamic list of checkboxes is added to a placeholder on Page_Load. Then I get the list of values that are true and, for each row in the list, use FindControl to find the checkbox with the appropriate ID and set it to flagged.
I've got the MVC page working so far as follows:
I can build the checkboxes I need by passing the list of ID's using the ViewData.
I can also add, and edit the fields that are in the table with the single row that needs to be edited.
What I'm stuck on is:
Populating the appropriate checkboxes with "true" as appropriate
Subsequently saving any updates to the checkboxes when the save button is clicked.
i have a check box list control that is used for showing related files to some post.
what i want to do is set the databound items "checked" to true by default
then,
if a user unchecks some item and clicks the save button. then the selectedindexchanged will fire and i will do some logic.
what i have done is.
--Set All Databound items to "checked" --
[code]....
in the end i want the item that was unchecked to be removed (all other items will remain checked). but even before that, when the user control is loaded all the files that were bounded are being deleted by the index change event.
am creating dynamic rows in a table from List<Productos> but this list have repeats same objects depending of quantity for one product.
[Code]....
I like that the products are not repeated but instead that show the quantity in a label.
This morning I posted a question w.r.t Radio Buttons, but the requirement changed so I'm posing a similar question.
I want to have a checkbox in a datagrid.
Suppose I click on one of the checkboxes and then realize i need to click on another, the screen has to automatically uncheck the previously clicked checkbox and then check the newly clicked checkbox.
In other words I need to clear previously checked checkboxes and check the recently clicked checkbox.
Also, I need to update a label in the page with a value associated with the row of the checked checkbox.
I should not be using a javascript to do this.
I am adding columns dynamically to gridview as [URL] ....
I am adding checkbox and trying to add handler but it is not getting fire
AddHandler lnkView.Click, AddressOf ViewDetails
AddHandler Chk.CheckedChanged, AddressOf ViewDetails
how to compare to checkbox list and show selected in first checkbox list
[Code]....
I have created a formview with 4 dynamic controls fields that LINQ to a database.
rentfoodutilitytotal
There's an event handle for each of the first three fields whenever a text change with following codes:
' extract textbox from both SubTotal and the modified field
tboxSubtotal = FormViewAssistance2.FindControl("totalTextBoxEdit")
tboxModifier = FormViewAssistance2.FindControl("foodTextBoxEdit")
'extract string from those textboxes
txtSubtotal = tboxSubtotal.Text
txtModifier = tboxModifier.Text
'convert text to double and add them together
Double.TryParse(txtModifier, dblModifier)
Double.TryParse(txtSubtotal, dblSubtotal)
dblSubtotal = dblSubtotal + dblModifier
'post the changes back to SubTotalTextBoxEdit
'totalTextBoxEdit
'EditorPart.ReferenceEquals("totalTextBoxEdit", dblSubtotal)
'PostBackTrigger.ReferenceEquals("SUBTOTRECTextBoxEdit", dblSubtotal)
'EditorZone.ReferenceEquals("SUBTOTRECTextBoxEdit", dblSubtotal)
I'm stuck on how to post/update totalTextBoxEdit to reflex changes in first three fields without having user clicking Update button to save the information into database. I've tried above 3 statements but none of them is working.
how to implement a filter feature like this? What Ajax or JQuery controls can be used for this (if any)?
Here is an example of how the UI might look like:
See the Exchange Management Console image:
[URL]
Here is the spec:
The ASP.NET page has a "Filter" component and a "Apply Filter" button. The "Filter" component consists of 4 UI controls as below:
1. A dropdown list with prepopulated values like "Name", "Department", "Building", "Email Address".
2. A dropdown list with four operators - "Equal", "Not Equal", "Like", and "Not Like"
3. This is a dynamic control. It could be a textbox or a dropdown list. If the user chooses "Name" from the first UI control, the third UI control will become a Textbox. If the user chooses "Department" from the first UI control, the third UI control will become a dropdown list with all departments within this company pre-populated.
4. A button with AND expression. If the user clicks this button, one more Filter component will be created.
One possible user case is like this:
ASP.NET: when the page is loaded, it displays one Filter component (3 UI controls and a AND button), a "Apply Filter" button, and an empty "Filter Result" data grid.
I'm new to web dev and c# so please bare with me. I am trying to create a dynamic gridview in a web form for users to to answer questions with (code below).
The dificulty im having is that i am nesting a dropdwonlist in the gridview and want to be able to dynamically set the list values based on parameters (of the row they are on). These values are in the main dataset for the gridview as each row represents a questionid and question text and then a ddl for the criteria...
I just don't know how to set the values for the dropdown all the code so far is below... just need to be able to populate the dropdowns with the relevant values.
I have created a stored proc to return the different criteria based on the questionid and questionGroupid which is the dataset that populates the other fields in the gridview: dbo.usp_QuestionCriteria @QuestionGroupId, @QuestionId
I have added this as a tableadapter called criteriaTableAdapter in a xsd file as well using the wizard... not sure if this is the right option though or just use the same method as i have for the other stored procedure as in the code below:
[CODE
]using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["Sql"].ConnectionString);
con.Open();
SqlCommand com = new SqlCommand("usp_QuestionGroupDS", con);
com.CommandType = CommandType.StoredProcedure;
SqlDataAdapter ada = new SqlDataAdapter(com);
DataSet ds = new DataSet();
ada.Fill(ds);
for (int i = 0; i < ds.Tables.Count; i++)
{
if (ds.Tables[i].Rows.Count > 0)
{
GridView gvDynamicQuestion = new GridView();
gvDynamicQuestion.Width = Unit.Pixel(700);
gvDynamicQuestion.BorderWidth = Unit.Pixel(0);
gvDynamicQuestion.Caption = "<div id="nifty" class="QuestionGroup"> <b class="rtop"><b class="r1"></b><b class="r2"></b><b class="r3"></b><b class="r4"></b></b>" + ds.Tables[i].Rows[0]["Category"].ToString() + " Questions<b class="rbottom"><b
class="r4"></b><b class="r3"></b><b class="r2"></b><b class="r1"></b></b></div>";
gvDynamicQuestion.AutoGenerateColumns = false;
gvDynamicQuestion.ShowFooter = true;
TemplateField tf = null;
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("QuestionId", DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("QuestionId", DataControlRowType.DataRow);
tf.FooterTemplate = new DynamicGridViewTextTemplate(DataControlRowType.Footer, ds.Tables[i].Rows.Count);
gvDynamicQuestion.Columns.Add(tf);
tf = new TemplateField();
tf.HeaderTemplate = new DynamicGridViewTextTemplate("Question", DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewTextTemplate("Question", DataControlRowType.DataRow);
gvDynamicQuestion.Columns.Add(tf);
tf = new TemplateField();
tf.HeaderText = "Criteria";
tf.HeaderTemplate = new DynamicGridViewTextTemplate("Criteria", DataControlRowType.Header);
tf.ItemTemplate = new DynamicGridViewDDLTemplate();
gvDynamicQuestion.Columns.Add(tf);
////tf = new TemplateField();
////tf.HeaderText = "Criteria";
////tf.ItemTemplate = new DynamicGridViewDDLTemplate();
////gvDynamicQuestion.Columns.Add(tf);
gvDynamicQuestion.DataSource = ds.Tables[i];
gvDynamicQuestion.DataBind();
phDynamicGridHolder.Controls.Add(gvDynamicQuestion);
}
}
}
protected void DynamicGrid_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Footer)
{
//
}
}
}
public class DynamicGridViewTextTemplate : ITemplate
{
string _ColName;
DataControlRowType _rowType;
int _Count;
public DynamicGridViewTextTemplate(string ColName, DataControlRowType RowType)
{
_ColName = ColName;
_rowType = RowType;
}
public DynamicGridViewTextTemplate(DataControlRowType RowType, int QuestionCount)
{
_rowType = RowType;
_Count = QuestionCount;
}
public void InstantiateIn(System.Web.UI.Control container)
{
switch (_rowType)
{
case DataControlRowType.Header:
Literal lc = new Literal();
lc.Text = "<b>" + _ColName + "</b>";
container.Controls.Add(lc);
break;
case DataControlRowType.DataRow:
Label lbl = new Label();
lbl.DataBinding += new EventHandler(this.lbl_DataBind);
container.Controls.Add(lbl);
break;
case DataControlRowType.Footer:
Literal flc = new Literal();
flc.Text = "<b>Total No of Questions:" + _Count + "</b>";
container.Controls.Add(flc);
break;
default:
break;
}
}
private void lbl_DataBind(Object sender, EventArgs e)
{
Label lbl = (Label)sender;
GridViewRow row = (GridViewRow)lbl.NamingContainer;
lbl.Text =DataBinder.Eval(row.DataItem, _ColName).ToString();
}
}
public class DynamicGridViewDDLTemplate : ITemplate
{
// Implementation of ITemplate
public void InstantiateIn(System.Web.UI.Control container)
{
// Create a DDL
DropDownList ddl = new DropDownList();
//Attach method to delegate
ddl.DataBinding += new System.EventHandler(this.ddl_DataBind);
container.Controls.Add(ddl);
}
//Method that responds to the DataBinding event
private void ddl_DataBind(object sender, System.EventArgs e)
{
//DropDownList ddl = (DropDownList)sender;
//DataGridItem container = (DataGridItem)ddl.NamingContainer;
//ddl.Data.Checked = [Data binding expression];
}
}
[/CODE]