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Populate DataGridview upon ComboBox selection


Populate DataGridview upon ComboBox selection

By : Meher LAFI
Date : November 22 2020, 12:01 PM
will help you You can not open the connection when its already in open state. So check if connection state is not open then only call the conexao.Open();
code :
if(!(conn.State == ConnectionState.Open))
    conexao.Open()
string query = "SELECT "values" FROM "table" WHERE seccao = '" + s + "'  ";
string query = "SELECT values FROM table WHERE seccao = '" + s + "'  ";
string query = "SELECT " + values +" FROM " + table +" WHERE seccao = '" + s + "'  ";
private void cbSeccoes_SelectedIndexChanged(object sender, EventArgs e)
{
    // I'm not sure what does this method work
    //povoaPlus(cbSeccoes.Text);

    // I think you should call this    
    populateDatagridView(string s)
}


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How to populate a combo box in a datagridview as per the selected values in another combobox in datagridview?

How to populate a combo box in a datagridview as per the selected values in another combobox in datagridview?


By : Ross
Date : March 29 2020, 07:55 AM
hope this fix your issue You may find the techniques used in this MSDN article helpful with your similar problem:
Walkthrough: Creating a Master/Detail Form Using Two Windows Forms DataGridView Controls
Django - jquery : populate combobox based on selection of another combobox

Django - jquery : populate combobox based on selection of another combobox


By : user3445529
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I think you're running up against a CSRF problem. As Django by default blocks POST requests that do not have a CSRF Token with a 403. There are a couple ways to deal with this in JS. One is to pull the value out of the cookie, the code to do that can be found here: https://docs.djangoproject.com/en/dev/ref/contrib/csrf/#ajax
or you can do it by passing the CSRF_TOKEN in with the javascript script tag:
code :
<script src='myjavascript.js?CSRF_TOKEN={{ csrf_token }}'></script>
function getOptionsFromScriptSrc() {
    // Get last script tag in parsed DOM.
    // Due to the way html pages are parsed, 
    // the last one is always the one being loaded.

    var options = {}
    var js_src = $('script').last().attr('src');

    if(js_src.match(/\?/)) {
        var options_list = js_src.split('?')[1].split('&');
        for(var i = 0; i < options_list.length; i++) {
            var tmp = options_list[i].split('=');
            options[$.trim(tmp[0])] = $.trim(tmp[1]);
        }
    }

    return options;
}

function get_asset_from_type(){
    var options = getOptionsFromScriptSrc();
    var type_asset = $("#id_type").val();
    var data = {type_asset: type_asset, csrfmiddlewaretoken: options['CSRF_TOKEN']};
    var args = {type:"POST", url:"/asset/etatType/", data:data};
    $.ajax(args);

    alert(type_asset);

    return false;
};
function get_asset_from_type(){
    var options = getOptionsFromScriptSrc();
    var type_asset = $("#id_type").val();
    var post_data = {type_asset: type_asset, csrfmiddlewaretoken: options['CSRF_TOKEN']};

    $.post('/asset/etatType/', post_data, function(data){
        // Assuming server is going to respond with the html of the options, eg: <option value="1">One</option><option value="2">Two</option>...
        $('#id_ofmyselectbox').append(data);
    }); 
};
populate a combobox using a selection in another combobox from excel sheet

populate a combobox using a selection in another combobox from excel sheet


By : Flavio Beck
Date : March 29 2020, 07:55 AM
will be helpful for those in need Hi i need to populate a combobox using the selected value in another combo. The coding that i use doesn't produce the required output. i have an excel sheet with columns called "BaseStation" & "SectorID". Combobox2 must display the related sector id with respect to the selected BaseStation , Try putting single quotes around the BaseStation parameter:
code :
cmd.CommandText = "SELECT * FROM [Sheet1$] WHERE BaseStation='" & ComboBox1.Text & "'"
Populate a datagridview from database on selection of an item in combobox

Populate a datagridview from database on selection of an item in combobox


By : Sebastian Gallop
Date : March 29 2020, 07:55 AM
I hope this helps you . I have a combobox having the requisition number. now when i select 1 of the requisition item like r001 in the combobox its information should be populated in the datagrid below. i have used a stroed procedure for this. but i dont know how to bind the datagrid view control to the info. , Just databind your DataTable to DataGridView
code :
dataGridView1.DataSource = null; //clear old one
dataGridView1.Rows.Clear(); //remove old rows
dataGridView1.DataSource = dsitemname.Tables[0];
Populate combobox with content from comma separated textfile - based on selection of another combobox

Populate combobox with content from comma separated textfile - based on selection of another combobox


By : user3367248
Date : March 29 2020, 07:55 AM
it helps some times If your file is one line with comma and whitespaces, you don't need an array of lines but you should first split by whitespaces.
If your file is a pair of "number,text" by line, Your foreach loop should look like the following :
code :
  foreach (var line in lineOfContents)
  {
        string[] tokens = line.Split(',');
        if (tokens[0] == combobox1_SelectedValue)
        {
            comboBox2.Items.Add(tokens[1]);
        }   
   }
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