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Dynamics 365 Community / Forums / Customer experience | Sales, Customer Insights,... / Can't read propert...
Customer experience | Sales, Customer Insights,...
Suggested Answer

Can't read properties of null in javaScript in MS CRM

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Posted on by bank 5

function ShowHideTabs(executionContext) {

//Get the form contex
var formContext = executionContext.getFormContext();
var optionSetAttribute = formContext.getAttribute("mri_optionset").getValue();

if (formContext.getAttribute("mri_optionset").getValue() == 171800000) {
formContext.ui.tabs.get("tab_2").setVisible(true);

}
else (formContext.getAttribute("mri_optionset").getValue() != 0){
formContext.ui.tabs.get("tab_2").setVisible(false);
}
}

I have the same question (0)
  • bank Profile Picture
    bank 5 on at

    Please let me know why I'm getting this Error.

    Thanks

  • bank Profile Picture
    bank 5 on at

    function ShowHideTabs(executionContext) {

       //Get the form contex

       var formContext = executionContext.getFormContext();

       var optionSetAttribute = formContext.getAttribute("mri_optionset").getValue();

       if (optionSetAttribute!=null && optionSetAttribute == 171800000) {

           formContext.ui.tabs.get("tab_2").setVisible(true);

       }

       else {

           formContext.ui.tabs.get("tab_2").setVisible(false);

       }

    }

    I have tried this also

  • Suggested answer
    Abdul Wahab Profile Picture
    Abdul Wahab 12,119 Moderator on at

    Hi bank,

    Try to use the below code. The code cannot get that control, so you are getting the error.

    function showHideTab2(executionContext) {
    try {
        //Get the form contex
        var formContext = executionContext.getFormContext();
        var optionSetAttribute = getValue(formContext, "mri_optionset");

        if (optionSetAttribute == 171800000) {
            showHideTab(formContext, "tab_2", false);

        }
        else (optionSetAttribute != 0){
            showHideTab(formContext, "tab_2", false);
        }
    } catch (e) {
        openAlertDialog("Error from showHideTab2: "   "e: "   e   ". e.mesage: "   e.message);
    }
}

function showHideTab(formContext, tabName, isVisible) {
    try {
        let tabObj = formContext.ui.tabs.get(tabName);
        if (tabObj) {
            tabObj.setVisible(isVisible);
        }
    }
    catch (e) {
        openAlertDialog("Error from showHideTab: "   "e: "   e   ". e.mesage: "   e.message);
    }
}

function getValue(formContext, attribute) {
    let value = "";
    try {
        if (this.getControl(formContext, attribute) != "") {
            value = formContext.getAttribute(attribute).getValue();
        }
    } catch (e) {
        openAlertDialog("Error from getValue: "   "e: "   e   ". e.mesage: "   e.message);
    }
    return value;
}

function getControl(formContext, control) {
    let controlValue = ""
    try {
        controlValue = formContext.getControl(control);
    } catch (e) {
        openAlertDialog("Error from getControl: "   "e: "   e   ". e.mesage: "   e.message);
    }
    return controlValue
}

function openAlertDialog(alertStrings) {
    try {
        Xrm.Navigation.openAlertDialog(alertStrings).then();
    } catch (e) {
        Xrm.Navigation.openAlertDialog("Error from openAlertDialog: "   "e: "   e   ". e.mesage: "   e.message).then();
    }
}

  • bank Profile Picture
    bank 5 on at

    function ShowHideTabs(executionContext) {

           //Get the form contex

           var formContext = executionContext.getFormContext();

           var optionSetAttribute = getValue(formContext, "mri_optionset");

           if (optionSetAttribute == 171800000) {

               showHideTab(formContext, "tab_2", true);

           }

           else (optionSetAttribute!= 0)

               showHideTab(formContext, "tab_2", false);

           }

    getting the error: getValue is not defined

  • Suggested answer
    NODAL Profile Picture
    NODAL 860 on at

    Hi,

    Check if attribute (mri_optionset) and tab (tab_2) names are correct.

    Use browser developer tool to identify exact issue.

    Refer this for more information : ://mscrmwithramandeep.home.blog/how-to-debug-javascript-in-dynamics-365-ce/

    Cheers,

    Ketan

  • Suggested answer
    Abdul Wahab Profile Picture
    Abdul Wahab 12,119 Moderator on at

    Hi bank,

    The below code should be worked as expected

    function showHideTab2(executionContext) {
    try {
        //Get the form contex
        var formContext = executionContext.getFormContext();
        var optionSetAttribute = getValue(formContext, "mri_optionset");

        if (optionSetAttribute == 171800000) {
            showHideTab(formContext, "tab_2", true);

        }
        else (optionSetAttribute !== 0){
            showHideTab(formContext, "tab_2", false);
        }
    } catch (e) {
        openAlertDialog("Error from showHideTab2: "   "e: "   e   ". e.mesage: "   e.message);
    }
}

function showHideTab(formContext, tabName, isVisible) {
    try {
        let tabObj = formContext.ui.tabs.get(tabName);
        if (tabObj) {
            tabObj.setVisible(isVisible);
        }
    }
    catch (e) {
        openAlertDialog("Error from showHideTab: "   "e: "   e   ". e.mesage: "   e.message);
    }
}

function getValue(formContext, attribute) {
    let value = "";
    try {
        if (this.getControl(formContext, attribute) !== "") {
            value = formContext.getAttribute(attribute).getValue();
        }
    } catch (e) {
        openAlertDialog("Error from getValue: "   "e: "   e   ". e.mesage: "   e.message);
    }
    return value;
}

function getControl(formContext, control) {
    let controlValue = ""
    try {
        controlValue = formContext.getControl(control);
    } catch (e) {
        openAlertDialog("Error from getControl: "   "e: "   e   ". e.mesage: "   e.message);
    }
    return controlValue
}

function openAlertDialog(alertStrings) {
    try {
        Xrm.Navigation.openAlertDialog(alertStrings).then();
    } catch (e) {
        Xrm.Navigation.openAlertDialog("Error from openAlertDialog: "   "e: "   e   ". e.mesage: "   e.message).then();
    }
}

    Are you still not able to solve the problem?

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