Data Controls :: Check For NULL Values Sum And Display Values In GridView Cells
Apr 3, 2013
i am using a gridview in my web page,i used to bind the database records to the gridview..my columns are name,empid,company name,pl leave,sl leave,total leave taken here total leave taken is not a database fields,in the page i want to fill the records once loaded pl leave and sl leave is added and display in the total leave taken column..it working properly when all pl ans sl columns fill with numbers,if some pl and sl leave having blank values.it showing an error like input sting was not in correct format..this is my code
<Columns>
<asp:BoundField DataField="slno" HeaderText="SerialNo"
SortExpression="slno" />
<asp:BoundField DataField="ecode" HeaderText="Employee Code"
SortExpression="empcode" />
<asp:BoundField DataField="ename" HeaderText="Employee Name"
[code]....
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Mar 14, 2012
this is my sql query and its work fine in my code but it only check ParentDeptID IS NULL it not working when ParentDeptID field is empty how can i check it
("select DeptID,DeptName,(select count(*) FROM HrDept " _
& "WHERE ParentDeptID=sc.DeptID) childnodecount FROM HrDept sc where ParentDeptID IS NULL ", _
objConn)
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Mar 2, 2010
I am able to get the values of GridView cells when the columns are not visible.
For Example:
<asp:BoundField DataField="TemplateKey" Visible="false"/>
foreach (GridViewRow gvrow in GridView1.Rows)
{
gvrow.Cells[0].Text.ToString()
}
But if I make the BiundFiled Visible="true" then I get the value in the code behind.
I do not want to show this value to the user and also want to get the value in the code behind. How can I do that?
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Feb 28, 2011
I have a Sql Data Source that queries my class database. What I'm trying to do to save myself some landscape is to check a checkbox if any of the pre-requisite fields are not empty. I have this laying inside a gridview. My code doesn't error out but it doesnt' do anything either.
[Code]....
My query is like this:
[Code]....
So in a nutshell, if there is any value in PR1 - PR7, I want to check my checkbox in the gridview.
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Nov 23, 2010
I have a gridview in a page, and some Texboxes along with a button(for issuing a command) in the same page. The TextBoxs were inputted values and the values could be assigned to the selected row of the gridview, some fields are the same values along the rows, and the values are inputted in the TextBoxes for using several times without change.
Well, I need to know: how can I assign the values of the TextBoxes to the selected row of the gridview. in another words, how can I access the cell members of the gridview when it is in edit mode? (Q1)
If the row is not selected, I have no way to know which row should be assigned values, since there is no such things like "current row".
So, if the selecting button(or link) of the gridview is not selected, the button along with the TextBoxes should keep disabled, until a row's "Edit" button is clicked. (Q2: How can I find if the Edit button is clicked? I guess I can use the property "mode" of the gridview to indicate the situation. )
And the last question is (Q3), how can I ensure the values are updated to the database? Maybe I dont need to do more things than just click the uppdate button of the row of the gridview.
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May 7, 2015
I want to get Row Fields in Gridview on Checkbox Change inside gridview.I have checkbox column in grid, i want to get row details in msgbox as i select checkbox. On selected index change of checkbox inside ridview.Everytime i select checkbox, it gives msgbox for row details.
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May 10, 2010
Should I use the SQL Server bit data type or a simple varchar where the user would enter "yes" or "no"? More importantly, how wold I go about checking these checkboxes in the listview based on the values stored in my sql server database?
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Jun 24, 2010
Whenever you turn off the visibility of a column in Gridview, on Edit, the value becomes null because its never bound. The only way I know of stopping this behavoir is to put it in the DataKeyName list. Is there any other way to prevent this? I have quite a few columns that will not be displayed in this "release" but I want there for future extensibility. Also, in some cases these values will be used for calculations but the user should not see them. Is there no toggle property for "non-visible" items to remain "unchanged" or something of the sort?
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Jan 24, 2016
I have 3 textboxes and one submit button outside gridview. This textboxes submit value to gridview.
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Apr 12, 2010
I have a typical gridview/formview master control setup. When I try to update or insert I don't get any errors but it also doesn't work. When I try to insert data all I get are null values and when I update, none of the values are updated. The formview looks like its working, but just doesn't. The primary key is an identity and it auto-increments by one.
[Code]....
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Jun 28, 2010
During rowdatabound event I am getting values for rowcount in debug mode but I am not getting values for the cells of the grid. But After rendering I am getting values for the grid in the browser. I am not using codebehind for databind() to the grid. Here is the code.
<asp:SqlDataSource ID="SqlDataSourceView" runat="server"
ConnectionString="<%$ ConnectionStrings:HariTechDBConnectionString %>"
electCommand="SELECT DISTINCT [JobTitle], [JobDescription] ,[JobId]FROM [ManageJob] WHERE ([InactiveDate] <= SYSDATETIME())">
[code]...
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Feb 16, 2011
I have the following code
public class ProductDetails
{
private string _productid;
public string ProductID
{
get { return _productid; }
}
private string _description;
public string Description
{
get { return _description; }
}
private string _image;
public string Image
{
get { return _image; }
}
public ProductDetails(string productid, string description, string image)
{
_productid = productid;
_description = description;
_image = image;
}
}
public class DataAccess
{
private static string connectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
public ProductDetails GetProductDetails()
{
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SqlCommand cmd = new SqlCommand("ProductDetails", con);
cmd.CommandType = CommandType.StoredProcedure;
string productid = HttpContext.Current.Request.QueryString["productid"];
cmd.Parameters.Add(new SqlParameter("productid", SqlDbType.NVarChar)).Value = productid;
con.Open();
SqlDataReader reader = cmd.ExecuteReader();
reader.Read();
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(string)reader["ProductID"], (string)reader["Description"], (string)reader["Image"]);
reader.Close();
return pro;
}
}
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private DataAccess da = new DataAccess();
{
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{
lblDescription.Visible = false;
}
else
{
lblDescription.Text = product.Description;
}
}
In the last piece i want to check if the Description field is null or empty in order to hide the label control but i get an error if i write: if (product.Description == DBNull.Value) and can only use ring.Empty. But i want to check for NULL values as well..
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Sep 2, 2010
I'm trying to retreive values entered by users in the textboxes in the footer of the gridview and insert these values into another sql table.My code is as follows :-
protected void GridView2_RowCommand(object sender, GridViewCommandEventArgs e)
{
if(e.CommandName.Equals("addnew"))
{
TextBox t1 = (TextBox)GridView2.FooterRow.FindControl("tfrm");
string frm = t1.Text;
TextBox t2 = (TextBox)GridView2.FooterRow.FindControl("tsub");
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con.Open();
SqlCommand com = new SqlCommand(cmd,con);
int a = com.ExecuteNonQuery();
GridView2.DataBind();
con.Close();
}
}
But the strings 'frm' and 'sub' returns null values.
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Jan 23, 2011
How to deal with Null values in GridView Container.DataItem
[Code]....
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Nov 22, 2015
[URL]
how do you handle null data on gridview? and also the white spaces, it seems that the white spaces are converting to " "
Note: i can't replace the because i have 1 column thats in html form.
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Feb 23, 2010
I am working with gridview in my application. I want to get values of a particular cell in my rowcommand event on the click of a link button in a button field. Following is my code from aspx:
[Code]....
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Mar 5, 2010
I am updating a gridview. Problem is that when I hide certain fields that I do not want the user to update, they lose their values ie. the data is wiped out in the field unless I show them on the grid and make them writeable. Is there a property I need to set for the field to retain the value when the grid is updated or is this in the sql statement?
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May 15, 2010
i got my checkbox control in each row.actually my problem is i bound checkbox in a gridviw and i need those checkbox are checkd if database values are match.i do it like below
[Code]....
but problem is only one checkbox is checked.in page_Load i bind gridviw in ROwDatabound event i check Duecode in another table.so i need only matching checkbox should be checked.
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May 7, 2015
On update the dropdown value shows NULL in database : here's structure for my gridview
<asp:TemplateField HeaderText="Construction Phase" SortExpression="Phase_Name">
<EditItemTemplate>
<asp:DropDownList ID="EditedDropDownInGrid" runat="server" CssClass="form-control" DataSourceID="PhaseSQLDataSource" DataTextField="pp_name" DataValueField="pp_id">
</asp:DropDownList>
</EditItemTemplate>
[Code] ....
It updates other controls in gridview but does not update my selected dropdowns item value in Integer format which is inside gridview...
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Jul 7, 2010
I have a Gridview with some cells in numbers while in some cell they could be null without numbers. I need to modify it such that the numbers in the Gridview are in these formats:-
(a) If it is 12345.333 becomes 12,345
(b) If it is blank, I wish the cells to display 0
This is the code I am using to achieve (a), but when it comes to blank, it returns error (I believe my code below failed to provide blank cases but I dunno how. So what should be the code to do (b) above ?
For i As
Integer = 1
To N
e.Row.Cells(i).Text = String.Format("{0:#,##0}", Convert.ToDouble(e.Row.Cells(i).Text))Next
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Aug 4, 2010
i take data from Sqlserver database , and my prblem is that i want to get old and new values from gridview and base on that i want to change there background colors .. i try gridview rowupdating , editing ,updated Events but when i debug no break point hit and there was no value in ViewSate that i declare ,
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May 7, 2015
i want to show selected row of gridview into textbox then we can change these value then we click update button then these value add into selected row., this row show the update value not previous using jquery . following my code.
<script type="text/javascript" src="~/Scripts/jquery-1.10.2.js"></script>
<script type="text/javascript">
$(document).ready(function () {
// function Edit() {
var par = $(this).parent().parent();
var id = par.children("td:nth-child(1)");
var name = par.children("td:nth-child(2)");
[Code].....
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Apr 20, 2010
here is my problem:
Admission no: 1212
Feetyep :College fee
Fee term : annual
above values should be appear in Grid view.
how to display the selected values in Grid view.
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Apr 6, 2010
I have a gridview that calls a stored procedure that allows the user to search a parts list. In the gridview, I added a textox for Quantity and a button to Add to Quote. The idea here is that the user searches for parts, enters a quantity for a selected part, part is added to quote and user searches again for more parts. Here's my gridview code:
[Code]....
I've also created QuoteParts.aspx as follows:
[Code]....
Questions:
1. How do I display the gridview values including textbox Quantity in my listbox?
2. How do I ensure that parts remain in the listbox after another search is performed? If it's viewstate, can you provide an example of how to go about doing this?
3. The values in the listbox will ultimately be written to the database on an insert record when customer creates a quote. Is there a way to streamline this process so that the insert is started when gridview textbox quanity is entered? I'm thinking about using a wizard control with first step being a display of selected parts, culiminating in an insert statement.
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Dec 19, 2012
I have 1 gridview
In gridview there are 4 asp textbox
textbox 1 = key in number
textbox 2 = key in number
textbox 3 = key in number
textbox 4 = total
How do I sum all the value that are key in from textbox 1 to 3 and automatically display in textbox 4.
Let say:
textbox 1 = 1
textbox 2 = 2
textbox 3 = 4
total:
textbox 4 = 7
if I key in one of the textbox , the value also appear in textbox 4
textbox 1 = 1
.
.
automatically appear textbox 4 = 1
.
.
textbox 2 = 2
.
.
automatically appear textbox 4 = 3 ...
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