i have table in my database that contain Fname and age for example.
i need to paint in green all age that under 50 and to paint in red all age up to 50
how to to it ?
i'am using asp.net C# on VS2008
I need to add 3 rows to a footer, i did a total but dont know how to add 2 more,
I have a variable credits that i would like to display on the next line and then net the 2 on the 3rd line.
I have looked at properties of the e.Row and was thinking if i could add a table?? Is there a to table method of datagridview? That way i could add the rows?
protected void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Footer)
{
double totald = Convert.ToDouble(dt.Compute("Sum(Bal)", string.Empty).ToString());
e.Row.Cells[0].Text = "Total";
e.Row.Cells[0].Attributes.Add("align", "left");
e.Row.Cells[2].Text = string.Format("{0:n0}", totald);
e.Row.Cells[2].Attributes.Add("align", "center");
e.Row.
}
}
I want to allow people visiting my website to have the ability to change the displayed data in a DataGridView from a Dropdown box and have it auto postback. So options are in the dropdown box 10, 20, 30
View 5 RepliesI am new to asp.net and was trying to use datagridview in my webform. I was able to bind it to my database but I cannot make the datagridview's buttonfield respond. It seems the grid's SelectedIndexChanged event is not being fired or has issues with postback. Even a very simple statement is not being executed by the program e.g.
protected void grid_SelectedIndexChanged(object sender, EventArgs e)
{
detailsLabel.Text = "asdfasdfsafasddf";
}
It seems the SelectedIndexChanged is not being fired. I have checked my IE and scripting is enabled.
I am using VS 2008 and IE7. Can anyone share a solution on how to solve this issue?
i have the following problem. I'm binding a GridView to its DataSource (works fine). But after that, i want to "re-paint" it. I'm retreiving the company numbers for the last 3 years, and adding a column between each year that gives me the difference between them in percentage... what i mean with "re-painting" is that, if the difference is positive, i want to set the cell's forecolor to green, and if negative, to red. For this, i guess i have to loop cell by cell after GridView is bound, but cant get it to work (trying with bound event)...
View 2 RepliesI implemented clickable rows in datagrid using ajax. The problem is, when I click the row in the Results page I redirect to another page to view the data. In that page I have an "update" button that I can update the data in the table in the DB and when I click it, I redirect back to the Results page and then click the same row again to view its details, the data isnt updated and its still old data. The thing is, the data is being updated in the table in the DB, its like the page is saving the old data he brought and using it and I dont know how to tell him to bring new data. Here is the code to make clickable rows:
protected void pendingGrid_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Attributes.Add("onclick", "return GetDataUsingAJAX(" + e.Row.RowIndex + ",'pending');");
e.Row.Attributes.Add("style", "cursor:hand");
}
}
here is the javascript of Results page:
function GetDataUsingAJAX(row, table) {
obj = new XMLHttpRequest();
if (obj != null) {
obj.onreadystatechange = RedirectToViewDetails;
obj.open("GET", "Results2.aspx?row=" + row + "&table=" + table, true);
obj.send(null);
}
return false;
}
function RedirectToViewDetails() {
if (obj.readyState == 4) {
if (obj.status == 200) {
var retval = obj.responseText.split("&");
window.location = "YellowCardStart.aspx?mode=" + retval[0] + "&cntct=" + retval[1] + "&strtDate=" + retval[2] + "&endDate=" + retval[3] + "&strtTime=" + retval[4] + "&endTime=" + retval[5] + "&tools=" + retval[6] + "&id=" + retval[7] + "&table=" + retval[8] + "&bldng=" + retval[9] + "&loc=" + retval[10] + "&devTool=" + retval[11] + "&cmpny=" + retval[12] + "&phn=" + retval[13] + "&lssApp=" + retval[14] + "&ehsApp=" + retval[15] + "&cmnts=" + retval[16] + "&created=" + retval[17]; }
else {
alert("Error retrieving data!");
}
}
}.............
I have a datagridview within which i want to use a dropdownlist.I am not sure how to do it.can anyone provide any links or hint how to do this?
View 7 RepliesTrying to update a .NET .20 datagridview in the following scenario. A page contains a formview. The formview contains a datagridview and some other fields not in the grid. The formview has its own ObjectDataSource and the datagridview has a separate ObjectDataSource. Each ObjectDataSource has an OnUpdating event. Clicking a Save button triggers the formview update event and the "non-grid" ObjectDataSource updates without a problem. In that same event, I also want to update the grid's ObjectDataSource. Because it's a grid, this OnUpdating event has to loop through each row, get the data for that row and set the UpdateParameter values. A foreach loop can get the values, but how do I trigger the update before looping to the next row?
Should I try calling a different kind of event for the DataGridView's ObjectDataSource? Or is there a way to get all the grid's new data at once as a dataset or datatable and do one bulk update? The datagridview does not have row-level edit/update buttons. It is meant to be an all-or-nothing kind of update.
I am trying to export an ASP.NET 3.5 DataGridView to Excel using the following code :
protected
void Button1_Click(object sender,
EventArgs e)
{
Response.Clear();
Response.Buffer = true ;
Response.AddHeader("content-disposition" ,
"attachment;filename=text.xls" );
Response.Charset = "" ;
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" ;
StringWriter sw =
new StringWriter ();
HtmlTextWriter hw =
new HtmlTextWriter (sw);
GridView1.DataSource = RecordsDataSet;
GridView1.DataBind();
GridView1.AllowPaging = false ;
GridView1.DataBind();
GridView1.HeaderRow.Style.Add("background-color" ,
"#FFFFFF" );
for (int i = 0; i < GridView1.Rows.Count; i++)
{
GridViewRow row = GridView1.Rows[i];
//Change Color back to white
row.BackColor = System.Drawing.Color .White;
//Apply text style to each Row
row.Attributes.Add("class" ,
"textmode" );
}
GridView1.RenderControl(hw);
//style to format numbers to string...........
I am trying to conditionally format a datagridview row. My gridview has only one row of data. Here is my code
[Code]....
My page gets an error saying "Specified Argument is out of range of valid values". Any ideas on what could be wrong?
have this code for Thread. Put data in textBox.How input three variables in to dataGridView?
[Code]....
I have calculated a value (say, Total) from datagrid values using RowDataBound event.
I want to show the value by adding a new column into Grid.
i have images stored in database and i have to show it in a web page thru datagridview
View 1 RepliesI have a situation where I need to freeze first two colums in a datagrid view control on my asp.net app. In windows forms there is a proprty called Freeze which can be enabled / disabled. How can I freeze first two colums in a data grid view control on my ASP.NET page.
View 1 RepliesI added a checkbox column in the first column of datagridview.
Once data loaded to datagridview there are three columns will display: check (check box), ID, description
How to get value of ID when user checks the check box at that row?
I am using C# , ASP .NET 2.0 and i have to avoid the datagrid view items from being wrapped.
View 4 Repliesi am working on delete method... having problems in deleting the selected row in datagrid view..
protected void Imgbtn_delete_Click(object sender, ImageClickEventArgs e)
I have spent most of my time writing ASP.Net web pages, using VS 2005. I am now developing some client function for Windows, so I'm relatively less expert in VB.In my Windows program I have defined a DataGridView and linked this to a data table (within a tableadaptor). Now I want to populate it: on a web page's code-behind I would write Gridview.databind(). What is the equivalent with a DataGridView.
View 1 Replies how i add DropDownList in edit mode of DataGridView by DataSet through code not visible?
As we know that by default Every Column in Edit mode is a TextBox I want to replace this to DropDownList through code.
I'm new to asp.net. I have an exercise about datagridview.
Basically it's like this, I created a sql database in visual studio, added some tables and records. I added a gridview to my page and change the datasource to 1 of my tables. It displays every thing fine.
Now my exercise is, I need to add a new record to that table from a textbox control and button submit, and display in gridview after page reload.
DataTable dt = new DataTable();
I have a web page with a Form a Button, a TextBox and a DataGridView in it. The DataGridView uses a SqlDataSource as its data source. SqlDataSource has one parameter which gets it's value from a
form parameter (TextBox1). When the page is opened for the first time I set the TextBox1 default value in code behind:
protected void Page_Load(object sender, EventArgs e)
I have loaded data into gridview from datatable which is in database.
I need to select any row from gridview to fetch the selectedrow values and need to display in corresponding textboxes.
but selectedindexchanged event is not firing, do I need to do any extra settings?
I want to fecth select index from the data loaded from database table.( not from manullay adding data to datarow and assigning datarow to datable and fanally to gridview- this is not the case)
onselectedindexchanged="GridView1_SelectedIndexChanged"
I am using a DataGridView and have a master table which contains values which different tables related to the master data, i.e. StatusID =1 in master table = TrailerStatus (1, 2, 3, 4 and their descriptions) are in a related table. I am able to retrieve the values from Table B 1 = Empty, 2 = Rejected, 3 = Onsite, etc. However, I don't know how to relate the master table StatusID = 1 to default my dropdown list from the relational table 1, 2, 3, 4.
I have been fighting with this for quite some time and just have not found a solid example of how to do this. I actually have two dropdownlists which will need to be correctly wired in order for my application to work.
This will also be an editable dataGridView but I will tackle that challenge once I get this first hair plucked from my butt.
There is some code-behind which doesn't work at all pertaining to a ;; gvSCACDetail_RowDataBound ;;
but I dont' think I can even get the code to compoile when this is not commented out.
Here are some of the details:
<td style="width: 700px; height: 20px">
<asp:GridView ID="gvSCACDetail" runat="server" AutoGenerateColumns="False" AutoGenerateEditButton="True" DataKeyNames="trailerid,locationid,scacid,statusid,capacityid" AutoGenerateDeleteButton="True" DataSourceID="SCACDetailView" Visible="False" Width="698px">
<PagerStyle CssClass="centerh" HorizontalAlign="Center" />
[Code]....
I created a website with a datagridview and I would like to add documents per line, actually a inserted there the next option
<asp:BoundField DataField="ID" HeaderText="ID" InsertVisible="False"
ReadOnly="True" SortExpression="ID" />
<asp:BoundField DataField="Week" HeaderText="Week" [code]....
it works really good, the only question is that how can I load the file with the button of "update", from the datagridview, how this code should be written?
I am editing a DataGridView and i have a textbox on the same page.I have setup textbox as rerquired field.when i edit my grid view it shows 2 buttons, cancel and update.when i press update button it shows textbox must has a value, altough textbox is not the part of the grid but available on the same page.I want when i press any button on the page, it should show field is required but when i press update button of the grid it should bypass the required field validation.
View 5 Replies